DOCSLIB.ORG

Curaçao and Other

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Curaçao and Other STUDIES ON THE FAUNA OF CURAÇAO AND OTHER CARIBBEAN ISLANDS: No. 145. Caribbean Land Molluscs: Bulimulidae I. Bulimulus by A.S.H. Breure (Zoologisch Laboratorium, Utrecht) Page Figure Table Plate INTRODUCTION 2 1 Description 5 1,4, 5b Methods 7 2-3,5a Material 8 Acknowledgments 9 SYSTEMATIcs 10 Genus Bulimulus Leach 10 2 B. limnoides ( 12 3 I, 1-6; VI, 6 B. guadalupensis (Brugui&re) 15 6-60 4 II B. 27 gittenbergerisp. n. 5 V, 10-13;VII, 3 B. hummelincki 28 61-71 6 sp. n. 111,1-5 B. diaphanus (Pfeiffer) 30 — diaphanus(Pfeiffer) 30 7 III, 11-14; VI,2; VII, 2 —fraterculus (Pot. & Mich.) 32 8 III, 6-10; VII, 1 B. lehmanni (Pfeiffer) 35 72-78 9 IV, 9-11; VI, 5 B. Iherminieri (Fischer) 36 79-80 10 V, 5-7 B. fuscus: Guilding 38 11 V, 1-4; VII, 5 B. riisei (Pfeiffer) 39 81-94 12 1,7-13;III, 15-17;VI,3-4;VII,4 B. erectus (Reeve) 42 13 IV, 6-8 B. cacticolus (Reeve) 44 14 IV, 12-15 B. eyriesii (Drouet) 46 15 IV, 1-3 B. dysoni (Pfeiffer) 47 IV, 4-5 B. stenogyroides (Guppy) 48 SubgenusRhinus Albers 49 B. constrictus (Pfeiffer) 49 16 V, 8-9; VI, 1; VII, 6 Zoogeographicalremarks 51 17 REFERENCES 53 TABLES 61 2 INTRODUCTION "The species of this subgenus [Bulimulus s.s.] are the difficult Bulimuli among most to distinguish, being in most and founded cases on slight inconspicuous differences." PILSBRY 36. 1897-8, p. This series of based the papers is on Bulimulidae collected by dr. P. WAGENAAR HUMMELINCK during several trips to the West Indies, and additional from material several museum collections. The species dealt with in this series have previously been treated in part by several authors and in particular monographically by PILSBRY in the Manual of Conchology (second series, vol. 10-12, 14). additionalinformation Thanks to and access to previously unknown it is type material, now possible to present a revision of this family in the Lesser Antilles and Puerto Rico. Sixteen (sub)species are treated, including two new ones: Bulimu- lus gittenbergeri and B. hummelincki. References, (re) description, for each measurements, distribution, as well as figures, are given species. The following new synonymies are proposed: Bulimus nichollsi limnoides Angas = Bulimulus (Ferussac); Thaumastus exilis var. concolor Piaget = Bulimulus guadalupensis (Bruguiere); Bulimulus Houelmontensis Crosse = Bulimulus diaphanus fraterculus (Potiez & Michaud); Bulimulus semicinctus Pilsbry = Bulimulus Iherminieri Pfeiffer Bulimulus (Fischer); Bulimus Barbadensis = fuscus Guil- ding. Finally some zoogeographical remarks are given. The Bulimulidaeform a relatively large family, mainly confined South At to America. present the family includes 144 genera and The of subgenera. number specific and subspecific names available is estimated at about 3000. According to BAKER (1956) the family name should be Orthalici- dae, ifpriority rules are applied. No attention has been paid to this proposal because of the unstable state of taxonomy of this family. At in which present several genera are included this family, may 3 better be elsewhere. The in placed genus Aillya Odhner, occurring Cameroon (West Africa), is placed in the Amphibuliminae by ODHNER (1928) on account of the anatomy. BAKER (1955) placed the in Aillyidae the Heterurethra*, near the Succineidae. Re-examination of the type species, Aillya camerunensis Odhner, should clarify the status of this genus. African Another genus included in the Amphibuliminae is Presto- nella Connolly. It occurs in South Africa and its anatomy is un- known. BAKER that it also be heterurethroussnail suggests may a (SOLEM 1959a, p. 123). WEYRAUCH (1967) described a monotypical genus from Peru, Pseudoglandina. The morphology of the shell suggests that it belongs to the Bulimulidae, but from a note of the collector (in WEYRAUCH), mr. J. M. SCHUNKE, it might be concluded that the species is a predator, and perhaps should be included in the Oleacinidae. The anatomy of Pseudoglandina agitata is unknown and the present status of the genus uncertain. On conchological, ecological and zoogeographical grounds WEY- Geoceras RAUCH (1958) removed the genus Pilsbry from the Bulimu- lidae the As the taken into to Urocoptidae. anatomy was not con- sideration, a study on this subject may be worthwhile. The Bulimulidae s.l. (see below) are here considered to be a family, be although it still has to proved that they form a monophyletic unit. The family is not easily characterized because of the great variationin shell form (see ZILCH 1959-1960, fig. 1668-1814); usual- the shells ovate-conic The be ly are to cylindric. genitalia seem to simple, but VAN MOL (1971) has shown that the internal structure, especially of the penis and epiphallus, is quite complex. The subdivision of the family into Bulimulinae, Amphibuliminae, Placostylinae, Odontostominae, and Orthalicinae is mainly based on shell features. This sensu lato conception of the Bulimulidae was already held by PILSBRY {Man. Conch., 1895-1902) and THIELE (1931), and is also favoured by the present author. More recent authors, e.g. ZILCH (1960), gave family rank to the subfamilies, the Placostylinae excepted. However, the differences between the sub- families the differ from the are slight, e.g. Amphibuliminae seem to 4 Bulimulinae in the and the free muscle only palleal organs retractor system (see VAN MOL 1971). VAN MOL (pers. comm.) is of the opinion be because that they should not even separated on subfamily level, the organ systems show progressive transformations. The distribution of the Bulimulidae is discussed and figured by PILSBRY 1946, SOLEM 1959b (fig. 15), and PARODIZ 1969 (map 6). In 1 number of in Table the (sub)genera the various areas is sum- marized for the Bulimulinaeand Placostylinae [= Bulimulidaes.s.]. The latter subfamily is entirely confined to the Australian Region. Regarding the Bulimulinae, the marked endemism in Peru, Brasil and Ecuador is endemic very striking. Comparative many (sub)genera occur in Mexico. Fossil records of Bulimulidae s.l. are available from Patagonia, Argentina (Paleocene and Eocene, PARODIZ 1946), Brasil (Miocene, PARODIZ 1969, or Early Paleocene - Late Cretaceous, FERREIRA & SANTOS COELHO 1971), and Florida (Miocene, DALL 1890). The Buli- mulidae, originally autochthonous in South America have migrated since the Miocene (or Pliocene?) towards Central America, the West Indies and North America. [For details on migration of Tertiairy mollusk faunas, see PARODIZ 1969, p. 189 ff.] Shells vary from approx. 10-150 mm, the largest to be found in the the of this the genus Placostylus. In taxonomy family sculpture of the protoconch is used mainly at (sub)generic level; other types of axial fine knobs sculpture (spiral striae, riblets, or costulae) mainly at species level. The majority of the species have no apertural den- tition, but most Odontostominae and some species of Bulimulidae have denticles lamellae in the s.s. one or more and/or aperture. Anatomical data are few. The majorfeatures in the anatomy of the Bulimulinae male MOL are: a long tract, simple externally, internally complicated (VAN 1971, fig. 13-17); a moderately long spermathecal duct, which is unbranched; the free muscles the columella. retractor are united near junctionon Authors in the past generally only considered jaw, radula and gross anatomy of the genitalia (e.g. BINNEY 1884, FISCHER & CROSSE 1870-1902, SEMPER 1874). More recently additional features have been taken into account (e.g. LANZIERI & REZENDE 1965, PILSBRY 1901-1902, VAN MOL 1971). The Bulimulidae are adapted to various kinds of habitat (e.g. trees, rock-faces, 5 shrubs and which litter), even can be occupied by species of the same genus (cf. the radiation of adaptive Naesiotus on the Galapagos). and of Data on the taxonomy zoogeography the family are widely scattered in literature. Only PILSBRY (1895-1896 . 1901-1902) has made a monographic attempt, but this great work is badly in need of revision. Summarizing publications of parts of the family, in a taxonomical or geographical sense, are those of MARTENS 1873, 1890-1901, PARODIZ 1942, 1943, SIMPSON 1929, and STREBEL 1909. DESCRIPTION Although PILSBRY often presented valuable descriptions in his Manual of Conchology, the present author preferred giving a re- description of each species in order to facilitate comparison. All descriptions are based on material examined, unless otherwise stated. References but are as complete as possible, generic synonymy has been omitted. For each species localities only have been men- tioned if they are new to science. Misidentifications are only indicated by a question-mark if the reference obviously falls outside the distribution of the species, as in most cases it is impossible to trace the materialwhich the authorhad at hand. References without that the of the further details mean only name species was given. In the distributionalrange following each description new locali- ties are followed by an exclamation-mark. If a locality is followed by reference material from a no that particular island was examined. Among the terms used in this series, some need definition, while others are already well defined ( fide Cox 1955, BROOKES KNIGHT al. et 1960). Highly subjective and indefinableones remain e.g. form of the aperture and colour. PROTOCONCH: The initialwhorls formedbefore hatching. - In this family these whorls are smooth or variously sculptured, a feature used for identification the level PILSBRY commonly on genus (cf. but in the it also be useful the 1896), present study proved to on species level. LOWER SIDE OF THE PROTOCONCH: The abapical part of each protoconch whorl (Fig. 4). 6 Fig. 1. Sketch map of the Caribbean, showing localities of West Indian Bulimulus treated in this paper. UPPER The of SIDE OF THE PROTOCONCH : adapical part each pro- toconch whorl (Fig. 4). COLUMELLAR MARGIN (c.m. in Fig. 5b): The adaxial part of the peristome, running from the base of the columella to the junction at the ultimatewhorl.
Load more

Recommended publications
  • Development and R Elopment and R Elopment and Reproduction In
    Development and reproduction in Bulimulus tenuissimus (Mollusca: Bulimulidae) in laboratory Lidiane C. Silva; Liliane M. O. Meireles; Flávia O. Junqueira & Elisabeth C. A. Bessa Núcleo de Malacologia, Departamento de Zoologia, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora. Campus Universitário, 36036-330 Juiz de Fora, Minas Gerais, Brasil. E-mail: [email protected] ABSTRACT: Bulimulus tenuissimus (d’Orbigny, 1835) is a land snail of parasitological importance with a poorly understood biology. The goal of this laboratory study was to determine development and reproductive patterns in B. tenuissimus. Recently hatched individuals in seven groups of 10 were maintained in the laboratory for two years. To test for self-fertilization, 73 additional individuals were isolated. After 180 days the isolated snails showed no signs of reproduction. Subsequently, 30 of these snails were paired to test fertility. We noted the date and time of egg-laying, the number of eggs produced, the number of egg-layings per individual, the incubation period and hatch success. This species shows indeterminate growth. Individuals that were maintained with others, as compared to isolated individuals, laid eggs sooner, laid more eggs and had a greater hatching success. This species can self-fertilize, however, with lower reproductive success. Bulimulus tenuissimus has a well-defined repro- ductive period that is apparently characteristic for this species. KEY WORDS. Growth; land snail; reproduction. RESUMO. Padrão de desenvolvimento e aspectos reprodutivos de Bulimulus tenuissimus (Mollusca: Bulimulidae) em condições de laboratório. Apesar de ser uma espécie de importância parasitológica, não existem estudos sobre a biologia de Bulimulus tenuissimus (d’Orbigny, 1835).
    [Show full text]
  • On the Snails' Trail
    74 On the Snails’ Trail Evolution and Speciation Among a Vanishing Tribe Christine Parent and Guy Coppois Section of Integrative Biology, Dr. Christine Parent is an evolutionary ecologist, now a postdoctoral fellow at the University of University of Texas at Austin, Texas at Austin. She is interested in the patterns and processes of adaptive radiation, particularly in 1 University Station C0930, island systems. Austin, TX 78712, U.S.A. <[email protected]> Dr. Guy Coppois is a malacologist. He started investigations on Galápagos terrestrial malaco- fauna in 1973, focusing on systematics, distribution, ecology and adaptation. A member of the Charles Darwin Foundation (CDF) General Assembly, he served on its Board of Directors (Belgian representative) from 1987–2003. He is Professor of Biology at Brussels’s Free University. Christine’s experience 1999–2005 for the study of evolutionary diversification, my main FOR OVER EIGHT YEARS now I have been studying the scientific interest. endemic land snails of Galápagos, during which time After I returned to Carleton University in Canada these creatures have truly ‘grown on me.’ I first came to finish my Master’s thesis on wasps, I started across their trail in 1999, when I spent five months thinking about pursuing a Ph.D. in evolutionary on Galápagos doing research on two introduced ecology, and, with my supervisor’s encouragement, predatory wasps. Toward the end of my field season, decided to study the Galápagos bulimulid land Laboratoire de Systématique in the arid zone of Santa Cruz Island, I was sitting on snails. But remembering the empty shells on Santa et d’Ecologie, Faculté des a lava rock observing Polistes versicolor wasp nests Cruz, I became concerned upon reading that a lot In November 2000, I was back on Santa Cruz Island By this time, I had learned that there are over 80 ABOVE: The lush Scalesia Sciences, CP-160/13, when I noticed tiny white shells littered about.
    [Show full text]
  • First Record of Bulimulus Tenuissimus (Mollusca) As Potential Experimental Intermediate Host of Angiostrongylus Cantonensis (Nematoda) F
    Brazilian Journal of Biology https://doi.org/10.1590/1519-6984.188914 ISSN 1519-6984 (Print) Original Article ISSN 1678-4375 (Online) First record of Bulimulus tenuissimus (Mollusca) as potential experimental intermediate host of Angiostrongylus cantonensis (Nematoda) F. G. Martinsa, J. S. Garciab, E. J. L. Torresc, M. A. J. Santosd, C. L. Massarda,e and J. Pinheiroa,f* aPrograma de Pós-graduação em Ciências Veterinárias, Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro – UFRRJ, BR 465, Km 7, CEP 23897-000, Seropédica, RJ, Brasil bLaboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios, Fundação Oswaldo Cruz – FIOCRUZ, Avenida Brasil, 4365, Manguinhos, CEP 21040-360, Rio de Janeiro, RJ, Brasil cDepartamento de Imunologia, Microbiologia e Parasitologia, Faculdade de Ciências Médicas, Universidade do Estado do Rio de Janeiro – UERJ, Rio de Janeiro, RJ, Brasil dDepartamento de Biologia Animal, Instituto de Ciências Biológicas e da Saúde, BR 465, Km 7, CEP 23897-000, Seropédica, RJ, Brasil eDepartamento de Parasitologia Animal, Instituto de Veterinária, BR 465, Km 7, CEP 23897-000, Seropédica, RJ, Brasil fDepartamento de Ciências Fisiológicas, Instituto de Ciências Biológicas e da Saúde, BR 465, Km 7, CEP 23897-000, Seropédica, RJ, Brasil *e-mail: [email protected] Received: October 12, 2017 – Accepted: March 07, 2018 – Distributed: November 30, 2019 (With 4 figures) Abstract Snails are essential to complete the life cycle of the metastrongylid nematode Angiostrongylus cantonensis, the causative agent of infections in domestic and wild animals, mainly rodents, and also of neural angiostrongyliasis or eosinophilic meningitis in humans. There are many reports of mollusks that can act as intermediate hosts of this parasite, especially freshwater snails and the African giant Achatina fulica.
    [Show full text]
  • The Fascinating Story of Speciation in Bulimulid Land Snails
    Where did they come from and where did they Galapa-go? The fascinating story of speciation in Bulimulid land snails Figure 1. A Bulimulid snail crawls across some lichen covering a lava rock in the humid highlands of San Cristobal. (Author) Audrey Bennett Bill Durham – Sophomore College: Evolution and Conservation in Galapagos Stanford University 14 October 2018 Abstract Hiding under leaf piles and in small pools of moisture in the porous rocks, the small, herbivorous bulimulid snails exist almost inconspicuously from the average tourist’s eye. However, a closer inspection into their natural history reveals an amazing story of diversification, adaptation, and evolution. This genera of snail, upon arrival to the Galapagos Islands about 2.77 million years ago (Parent and Crespi, 2006), has since radiated into 71 different species, making it the largest adaptive radiation on the islands (Parent and Crespi, 2006). The extent of this radiation in such a small area is rivaled only by the radiation of a similar bulimulid group in Baja California (Chambers, 1991, pp. 307-325). This raises some central questions: What factors contribute to successful radiation of the the bulimulid snails? Has reproductive isolation within an island or between islands been more important for speciation? Several hypotheses are proposed: Hypothesis 1 is that colonization event order will follow the Progression Rule, moving from eastern to western islands. Hypothesis 2 is that island isolation and species richness are negatively correlated. Hypotheses 3, 4, and 5 are that plant diversity, an island’s elevation, and the island area are positively correlated with the land snail species richness on that island.
    [Show full text]
  • Seasonal Changes of Energy Reserves in Bulimulus Tenuissimus (D'orbigny
    Animal Biology 62 (2012) 111–118 brill.nl/ab Seasonal changes of energy reserves in Bulimulus tenuissimus (d’Orbigny, 1835) (Mollusca, Bulimulidae) Lidiane Silva1,2,3,∗, Liliane Meireles2,4, Flávia Oliveira Junqueira2, Jairo Pinheiro1 and Elisabeth Cristina de Almeida Bessa2 1 Programa de Pós-graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro, CEP 23890-000, Seropédica, Rio de Janeiro, Brazil 2 Museu de Malacologia Prof. Maury Pinto de Oliveira, Universidade Federal de Juiz de Fora, Campus da UFJF, CEP 36900-330 Bairro Martelos, Juiz de Fora, Minas Gerais, Brazil 3 Bolsista Capes 4 Bolsista CNPq Accepted: May 13, 2011 Abstract The objective of this study was to evaluate the variation of energy substrates in different seasons in Bulimulus tenuissimus. For this evaluation, substrates were collected from the digestive and albumen glands and foot tissues, which were processed to obtain the concentrations of glucose and galactose. There was seasonal variation in energy reserves in both the digestive gland and the foot of Bulimulus tenuissimus, with a tendency to accumulation from spring to winter. There was greater use of energetic reserves in the spring and summer, being the glycogen stored in the digestive gland the first source consumed. In addition, mobilization of reserves of glycogen in the muscle in summer was observed. The reduction of glycogen coincides with the reproductive cycle of the species, and the expenses generated for the processes of mating and gametogenesis was the cause of this reduction. The concen- tration of galactogen also varied according to the reproductive period. It was suggested that variations in temperature and photoperiod that occur during the year would act as regulatory mechanisms of energy metabolism of B.
    [Show full text]
  • Picture Guide of Some Louisiana Snails for Survey Inspectors
    Picture Guide of Some Louisiana Snails for Survey Inspectors by Patrick Marquez USDA-APHIS-PPQ 11840 S. La Cienega Blvd. Hawthorne, CA 90250 Last update August 21, 2012 (Subject to change) 1 Bradybaenidae, Bradybaena similaris (Férussac) 2 Bulimulidae, Bulimulus corumbaensis Pilsbry 3 Bulimulidae, Bulimulus corumbaensis with protoconch under different lighting. 4 Helicinidae, Helicina (Oligyra) orbiculata (Say) 5 Oxychilidae, Oxychilus spp. or Zonitidae, Glyphyalinia spp. (???) 6 Polygyridae, Polygyra cereolus (Mühlfeld, 1818) 7 Polygyridae, Praticolella mexicana Perez 8 Strobilopsidae, Strobilops sp. texasiana (???) 9 Subulinidae, Allopeas gracile (Hutton 1834) 10 Succineidae, Calcisuccinea sp. 11 References Cheatum, E. P. & Richard W. Fullington 1971a The Aquatic and Land Mollusca of Texas. Part One: The Recent and Pleistocene members of the gastropod family Polygyridae in Texas. Dallas Museum of Natural History, Bulletin 1(1): 1-74. 1971b The Aquatic and Land Mollusca of Texas. Supplement: Keys to the families of the Recent Land and Freshwater snails of Texas. Dallas Museum of Natural History, Bulletin 1(Suppl.): 1-18. 1973 The Aquatic and Land Mollusca of Texas. Part Two: The Recent and Pleistocene members of the Pupillidae and Urocoptidae (Gastropoda) in Texas. Dallas Museum of Natural History, Bulletin 1(2): 1-67. Minton, R. L. & Perez, K. E. 2005. A Systematic Checklist of the Land Snails of Louisiana. The Texas Journal of Science, 57(2):1-12. Pilsbry, Henry 1939 Land Mollusca of North America (north of Mexico). Monographs of the Academy of Natural Sciences of Philadelphia, (3), 1(1): 1-573. 1940. 12 Personal Communications Kathryn E. Perez, Ph.D., Department of Biology, University of Wisconsin at La Crosse, 1725 State Street, La Crosse, WI 54601, U.S.A.
    [Show full text]
  • Picture Guide of Some Texas Snails & Slugs for Survey Inspectors
    Picture Guide of Some Texas Snails & Slugs for Survey Inspectors by Patrick Marquez USDA-APHIS-PPQ 11840 S. La Cienega Blvd. Hawthorne, CA 90250 Last update July 25, 2012 1 (Subject to change) Ampullariidae, Pomacea insularum (d’ Orbigny) 2 Bradybaenidae, Bradybaena similaris (Férussac) 3 Bulimulidae, Bulimulus sporadicus (d'Orbigny) 4 Bulimulidae, Rabdotus dealbatus (Say) 5 Gastrodontidae, Ventridens demissus (A. Binney) 6 Gastrodontidae, Zonitoides arboreus (Say) 7 Helicidae, Cornu aspersum (Müller) 17 mm 8 Helicinidae, Helicina (Oligyra) orbiculata (Say) 9 Limacidae, Lehmannia valentiana (Férussac) 22 mm 10 Lymnaeidae, Fossaria sp. 11 Physidae, sp. of 12 Planorbidae, Planorbella trivolvis Say 13 Polygyridae, Linisa texasiana (Moricand) 14 Polygyridae, Mesodon thyroidus (Say, 1816) 15 Polygyridae, Polygyra cereolus (Mühlfeld, 1818) 16 Polygyridae, Praticolella mexicana Perez 17 Polygyridae, Praticolella taeniata Pilsbry 18 Polygyridae, Triodopsis hopetonensis (Shuttleworth) 10 mm 19 Strobilopsidae, Strobilops texasiana Pilsbry & Ferriss, 1906 20 Subulinidae, Rumina decollata (Linné, 1758) 14 mm 21 Succineidae, Calcisuccinea sp. 22 Personal Communications Kathryn E. Perez, Ph.D., Department of Biology, University of Wisconsin at La Crosse, 1725 State Street, La Crosse, WI 54601, U.S.A. http://www.uwlax.edu/biology/faculty/perez/ David G. Robinson, Ph.D., USDA APHIS PPQ, Department of Malacology, Academy of Natural Sciences, 1900 Ben Franklin Parkway, Philadelphia, Pennsylvania 19103, U.S.A. Acknowledgments Thanks to the Survey Inspectors for intercepting these specimens making this possible. Thanks to Dr. Bram Breure (Bulimulus Expert, Netherlands) for identifying Bulimulus sporadicus specimens. Special thanks to Kathryn Perez for her time and effort identifying Polygyridae specimens. Jennifer Bongolan for her photo editing skills on some of the images.
    [Show full text]
  • Molluscs of Elm Fork Preserve Bivalves Gastropods
    Molluscs of Elm Fork Preserve This category includes those animals that do not possess a backbone. For sake of clarity and ease of use, the arthropods have been excluded from this category which hereby limits itself to worms and mollusks (snails and slugs). Comments: The comments section lists remarks in the following order: 1 Interesting facts and natural history associated with the animal. Its place of origin is also listed if it is an alien. 2 Edible, medicinal or other useful qualities of the animal for humans. The potential for poisoning or otherwise injuring humans is also listed here. 3 Food preferences of the animal and potential predators. Ecological impact. 4 Identifying features of the animal, especially differences between similar species. 5 Dates, times and locations of animals sighted. Observed behaviors. 6 Synonyms; outdated or recently changed scientific names are inserted here. 7 Control measures. The date, method and reason for any selective mollusc elimination. 8 Intentional Introductions. The date, source and reason for any mollusc introductions. 9 Identification references. Species identifications were made by the author unless otherwise noted. Identifications were verified using the reference material cited. 10 Accession made. Photos were taken and filed by date (and/or) shells or other hard evidence were collected. Bivalves (Mussels) Kingdom: Animalia > Phylum: Mollusca > Class Bivalvia > (F) mussel 4Texas is home to more than 50 species of mussels. They are currently in severe decline due to a variety of factors: Changes in the flow rate,of streams, increased siltation, and aquatic contamination rank highly among their host of problems. Some Texas mussels have life-spans of 5 or 6 years, while others live for 50 years or more.
    [Show full text]
  • Gastropoda, Pulmonata)
    B72(4-6)_totaal-backup_corr:Basteria-basis.qxd 15-9-2008 10:37 Pagina 241 BASTERIA, 72: 241-252, 2008 Mysterious or confusing: enigmatic species in the Orthalicidae (Gastropoda, Pulmonata) Abraham S.H. BREURE National Museum of Natural History Naturalis, P.O. Box 9517, NL 2300 RA Leiden, The Netherlands; [email protected] Five enigmatic species that have remained unnoticed or proved confusing are treated: Bostryx alausiensis (Cousin), Bulimulus gelidus (Reeve), Stenostylus colmeiroi (Hidalgo), Stenostylus nigrolimbatus (Pfeiffer) and Simpulopsis (S.) simula (Morelet). Drymaeus (D.) cleefi Breure & Eskens is now synonymized with Stenostylus nigrolimbatus (Pfeiffer). Key words: Gastropoda, Pulmonata, Orthalicidae, Bostryx, Bulimulus, Stenostylus, Simpulopsis, taxonomy, distribution, Colombia, Ecuador, Guatemala. INTRODUCTION Every family has its own ‘ghost members’, here considered enigmatic species as they often lead to misidentifications in collections or are taxonomically troublesome, e.g. because they are unrecognized after their original description, usually many decades ago. This paper deals with several of these enigmatic species from the Neotropical land snail family Orthalicidae. The species in this paper occur in three countries of which the land snail fauna is hitherto relatively poorly known: Guatemala, Colombia and Ecuador. Until the recapitulative work of Thompson (2008), the most recent comprehensive review of the land snail fauna of Guatemala is the work of Martens (1890-1901). He lists 33 taxa as belonging to the Orthalicidae from Guatemala. Goodrich & Van der Schalie (1937) dealt with the malacological results of the fourth Carnegie Institution-University of Michigan expedition in Petén and north Alta Vera Paz. They list 63 species in total, of which 4 belong to the Orthalicoidea.
    [Show full text]
  • Stylommatophora : Bulimulidae) in Laboratory Conditions
    ISSN 1517-6770 Dietary effects growth and shell calcium incorporation of Bulimulus tenuissimus (Stylommatophora : Bulimulidae) in laboratory conditions Liliane Meireles1,3, Lidiane Silva1,3, Flávia O. Junqueira1 , Jairo Pinheiro2 & Elisabeth C.A. Bessa1,3 1- Núcleo de Malacologia Prof. Maury Pinto de Oliveira, Universidade Federal de Juiz de Fora 2- Departamento de Ciências Fisiológicas, Instituto de Biologia e Curso de Pós-graduação em Ciências Veterinárias, Universidade Federal Rural do Rio de Janeiro 3- Mestrado em Ciências Biológicas - Comportamento e Biologia Animal, Instituto de Ciências Biológicas, Universidade Federal de Juiz de Fora, Campus Universitário, 36036-330, Juiz de Fora, Minas Gerais, Brazil; E-mail: [email protected] Resumo. A alimentação exerce grande influência no desenvolvimento dos moluscos terrestres. Desse modo, objetivou-se com esse estudo verificar a influência de diferentes dietas sobre o crescimento e o ganho de massa corporal de B. tenuissimus. Para tal, grupos de moluscos foram alimentados com seis itens diferentes (batata, chuchu, pepino, cenoura, maçã e ração), os quais foram oferecidos separadamente ou combinados por um período de 210 dias. Observaram-se os efeitos da alimentação nos dois parâmetros avaliados. Os resultados obtidos indicam que a combinação de itens alimentares favoreceu o crescimento, incorporação de cálcio na concha e o ganho de massa corporal nessa espécie, provavelmente, devido ao aumento na disponibilidade de nutrientes. Palavras-chave: nutrição. desenvolvimento. moluscos terrestres. Abstract. Diet influences the development of terrestrial snails. The objective of this study was to verify the influence of different diets on growth, body mass gain and content of calcium in the shell of Bulimulus tenuissimus (d’ Orbgny).
    [Show full text]
  • Confirmation of Polygyra Cereolus (Gastropoda: Polygyridae) in Puerto Rico, Greater Antilles Laurent Charles, Arnaud Lenoble
    Confirmation of Polygyra cereolus (Gastropoda: Polygyridae) in Puerto Rico, Greater Antilles Laurent Charles, Arnaud Lenoble To cite this version: Laurent Charles, Arnaud Lenoble. Confirmation of Polygyra cereolus (Gastropoda: Polygyridae) in Puerto Rico, Greater Antilles. Novitates Caribaea, 2020, 16 (16), pp.159-163. 10.33800/nc.vi16.234. halshs-02906589 HAL Id: halshs-02906589 https://halshs.archives-ouvertes.fr/halshs-02906589 Submitted on 25 Jul 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. NOVITATES CARIBAEA 16: 159–163, 2020 159 NOTA CONFIRMATION OF POLYGYRA CEREOLUS (GASTROPODA: POLYGYRIDAE) IN PUERTO RICO, GREATER ANTILLES Confirmación de Polygyra cereolus (Gastropoda: Polygyridae) en Puerto Rico, Antillas Mayores Laurent Charles1* and Arnaud Lenoble2 1 Muséum de Bordeaux–sciences et nature, 5 place Bardineau, 33000 Bordeaux, France. orcid.org/0000-0001- 6231-8127. 2 PACEA–UMR CNRS 5199–Université de Bordeaux–Ministère de la Culture et de la Communication, Avenue Geoffroy St Hilaire, CS 50 023, 33615 Pessac cedex, France; orcid.org/0000-0001-9023-9741. *For correspondence: [email protected]. ABSTRACT Polygyra cereolus (Megerle von Mühlfeld, 1816) is a small air-breathing snail originating in Florida, which is considered as an invasive species and is reported from a wide area in the south of the United States to Mexico and in some in some Caribbean Islands, Hawaii, Spain and the Arabian peninsula.
    [Show full text]
  • Adaptive Radiation, and Into the Relative Importance of Contingency and Determinism in Evolutionary Diversification
    INSIGHT REVIEW NATURE|Vol 457|12 February 2009|doi:10.1038/nature07893 Adaptation and diversification on islands Jonathan B. Losos1 & Robert E. Ricklefs2 Charles Darwin’s travels on HMS Beagle taught him that islands are an important source of evidence for evolution. Because many islands are young and have relatively few species, evolutionary adaptation and species proliferation are obvious and easy to study. In addition, the geographical isolation of many islands has allowed evolution to take its own course, free of influence from other areas, resulting in unusual faunas and floras, often unlike those found anywhere else. For these reasons, island research provides valuable insights into speciation and adaptive radiation, and into the relative importance of contingency and determinism in evolutionary diversification. When Charles Darwin embarked on his five-year odyssey on HMS species occupying similar environments elsewhere in the world. This Beagle, a Royal Navy surveying ship, he was an inexperienced, 23-year- seemed to suggest that they were not created independently1: “It is prob- old gentleman naturalist. He returned as one of the rising scientific stars able that the islands of the Cape de Verd group resemble, in all their of his generation. Many of Darwin’s experiences on this trip shaped his physical conditions, far more closely the Galapagos Islands, than these thinking, but none was more influential than the five weeks he spent latter physically resemble the coast of America, yet the aboriginal inhab- in the Galapagos Islands. itants of the two groups are totally unlike; those of the Cape de Verd Since Darwin’s time, research on islands has continued to advance Islands bearing the impress of Africa, as the inhabitants of the Galapagos the understanding of the evolutionary process.
    [Show full text]