Anatomy and Physiology of Amphibians

Total Page:16

File Type:pdf, Size:1020Kb

Anatomy and Physiology of Amphibians Herpe y & tolo log gy o : th C i u n r r r e O n , t y R g e o l s Entomology, Ornithology & o e a m r o c t h n E ISSN: 2161-0983 Herpetology: Current Research Commentry Anatomy and Physiology of Amphibians Peernel Zwart* Department of Biochemistry and Cell Biology, Center for Developmental Genetics, Stony Brook University, Stony Brook, USA INTRODUCTION Andes in northern Ecuador at elevations of 2500–2900 m and F. pygmaeus occupies the Mérida Andes and Cordillera dela and Amphibians are one of the extreme imperiled animal groups Costa in Venezuela and the Cordillera Oriental in northeastern with one-1/3 of species likely to extinction because of Colombia at elevations of 1000–1600 m .Hemiphractid frogs urbanization. Pond-breeding amphibians based on inter-linked resemble the tree frogs and for that reason have been earlier networks of freshwater ponds to finish their complicated categorized within the group of relatives Hylidae . However, lifestyles cycles which makes them in particular penetrating to hemiphractid frogs have terrestrial sensitive, while sensitive wetland loss, fragmentation and degradation and likely to within the Hylidae is aquatic. Hemiphractid female incubate influences from street production and site visitors) Furthermore, eggs and embryos interior a pouch or glued to the again of the amphibians are surprisingly likely to street mortality due to the female, variations that lower or take away dependence on water fact they're slower and smaller relative to different vertebrate for sensitivity. The incubation of embryos is related to changes taxa. Highly vagile amphibian species are at more threat of street of the anatomy and body structure of the mother, modifications mortality due to the fact they may frequently come upon roads in oogenesis, a reduction within the range of eggs, an boom in with more regularity. Dispersal boundaries among aquatic egg size, and modifications in development. Eggs of breeding habitats and terrestrial habitat regions might also hemiphractid frogs are the biggest in anurans and degree from additionally impair metapopulation dynamics and cause a 2.five mm to ten mm in diameter. The range of eggs levels from reduction within the local populations . There is usually a minor three to approximately 150, relying at the species. Birth happens within the incidence and abundance of amphibian species in at superior tadpole levels or juvenile frogs. In contrast, aquatic fragmented landscapes helping excessive site individual volumes, sensitivity is not unusual place in different frog group and frogs, frequently due to the fact woodland cowl is negatively correlated consisting of X. laevis¸ deposit approximately 1000–2000 small with the density of roads and site visitors. eggs withinside the water. BIOLOGY AND DISTRIBUTION CONCLUSION The particular group Hemiphractidae mainly in tropical areas of This evaluation suggests that there is one of a approaches to Latin America and consists of six genera with 106 species (frogs make a frog. A method determined in X. laevis, and different of this particular group are generally referred to as hemiphractid frogs with aquatic reproductive modes is the discharge of severa frogs). In the genera Cryptobatrachus, Stefania, Fritziana and eggs much less than 2 mm in length in each reproductive season. Hemiphractus, the egg are glued to the again of the female and The improvement of such frogs is multiplied because of the the embryos are uncovered to the outside environment. In uncertainties of aquatic duplicate. Body elongation starts early contrast, the embryos of Gastrotheca and F. pygmaeus, are also and the method of convergent extension overlaps with included in the dorsal pouch of the female frog. Frogs of those gastrulation. In contrast, developmental techniques fluctuate in genera are referred to as marsupial frogs. Reproductive and the frogs with terrestrial adaptations. Terrestrial duplicate of F. pygmaeus, are analyzed in evaluation with frogs and different hemiphractid frogs is related to incubation of embryos interior a organisms. Gastrotheca riobambae inhabits the highlands of the pouch or glued to the returned of the female. Correspondence to: Peernel Zwart, Department of Biochemistry and Cell Biology, Center for Developmental Genetics, Stony Brook University, Stony Brook, USA, E-mail: [email protected] Received: July 01, 2021; Accepted: July 14, 2021; Published: July 21, 2021 Citation: Zwart P (2021) Anatomy and Physiology of Amphibians. Entomol Ornithol Herpetol.10:246. Copyright: © 2021 Zwart P. This is an open accessar ticle distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Entomol,Ornithol &Herpetol, Vol.10 Iss.6 No:1000246 1.
Recommended publications
  • Catalogue of the Amphibians of Venezuela: Illustrated and Annotated Species List, Distribution, and Conservation 1,2César L
    Mannophryne vulcano, Male carrying tadpoles. El Ávila (Parque Nacional Guairarepano), Distrito Federal. Photo: Jose Vieira. We want to dedicate this work to some outstanding individuals who encouraged us, directly or indirectly, and are no longer with us. They were colleagues and close friends, and their friendship will remain for years to come. César Molina Rodríguez (1960–2015) Erik Arrieta Márquez (1978–2008) Jose Ayarzagüena Sanz (1952–2011) Saúl Gutiérrez Eljuri (1960–2012) Juan Rivero (1923–2014) Luis Scott (1948–2011) Marco Natera Mumaw (1972–2010) Official journal website: Amphibian & Reptile Conservation amphibian-reptile-conservation.org 13(1) [Special Section]: 1–198 (e180). Catalogue of the amphibians of Venezuela: Illustrated and annotated species list, distribution, and conservation 1,2César L. Barrio-Amorós, 3,4Fernando J. M. Rojas-Runjaic, and 5J. Celsa Señaris 1Fundación AndígenA, Apartado Postal 210, Mérida, VENEZUELA 2Current address: Doc Frog Expeditions, Uvita de Osa, COSTA RICA 3Fundación La Salle de Ciencias Naturales, Museo de Historia Natural La Salle, Apartado Postal 1930, Caracas 1010-A, VENEZUELA 4Current address: Pontifícia Universidade Católica do Río Grande do Sul (PUCRS), Laboratório de Sistemática de Vertebrados, Av. Ipiranga 6681, Porto Alegre, RS 90619–900, BRAZIL 5Instituto Venezolano de Investigaciones Científicas, Altos de Pipe, apartado 20632, Caracas 1020, VENEZUELA Abstract.—Presented is an annotated checklist of the amphibians of Venezuela, current as of December 2018. The last comprehensive list (Barrio-Amorós 2009c) included a total of 333 species, while the current catalogue lists 387 species (370 anurans, 10 caecilians, and seven salamanders), including 28 species not yet described or properly identified. Fifty species and four genera are added to the previous list, 25 species are deleted, and 47 experienced nomenclatural changes.
    [Show full text]
  • Molecular Phylogenetics and Evolution 123 (2018) 59–72
    Molecular Phylogenetics and Evolution 123 (2018) 59–72 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Phylogenetic relationships and cryptic species diversity in the Brazilian egg- T brooding tree frog, genus Fritziana Mello-Leitão 1937 (Anura: Hemiphractidae) ⁎ Marina Walker1, , Mariana L. Lyra1, Célio F.B. Haddad Universidade Estadual Paulista, Instituto de Biociências, Departamento de Zoologia and Centro de Aquicultura (CAUNESP), Campus Rio Claro, Av. 24A,No 1515, Bela Vista, CEP 13506-900 Rio Claro, São Paulo, Brazil ARTICLE INFO ABSTRACT Keywords: The genus Fritziana (Anura: Hemiphractidae) comprises six described species (F. goeldii, F. ohausi, F. fissilis, F. Egg-brooding frogs ulei, F. tonimi, and F. izecksohni) that are endemic to the Brazilian Atlantic Forest. Although the genus has been Molecular phylogeny the subject of studies dealing with its taxonomy, phylogeny, and systematics, there is considerable evidence for Brazilian Atlantic Forest cryptic diversity hidden among the species. The present study aims to understand the genetic diversity and Species diversity phylogenetic relationships among the species of Fritziana, as well as the relationships among populations within New candidate species species. We analyzed 107 individuals throughout the distribution of the genus using three mitochondrial gene Mitochondrial gene rearrangements fragments (12S, 16S, and COI) and two nuclear genes (RAG1 and SLC8A3). Our data indicated that the species diversity in the genus Fritziana is underestimated by the existence of at least three candidate species hidden amongst the group of species with a closed dorsal pouch (i.e. F. fissilis and F. ulei). We also found four species presenting geographical population structures and high genetic diversity, and thus require further investigations.
    [Show full text]
  • Anura: Hemiphractidae: Gastrotheca)
    Accepted Manuscript Short communication Brazilian marsupial frogs are diphyletic (Anura: Hemiphractidae: Gastrotheca) David C. Blackburn, William E. Duellman PII: S1055-7903(13)00179-6 DOI: http://dx.doi.org/10.1016/j.ympev.2013.04.021 Reference: YMPEV 4580 To appear in: Molecular Phylogenetics and Evolution Received Date: 7 January 2013 Revised Date: 2 April 2013 Accepted Date: 22 April 2013 Please cite this article as: Blackburn, D.C., Duellman, W.E., Brazilian marsupial frogs are diphyletic (Anura: Hemiphractidae: Gastrotheca), Molecular Phylogenetics and Evolution (2013), doi: http://dx.doi.org/10.1016/ j.ympev.2013.04.021 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. 1 Short Communication 2 3 Brazilian marsupial frogs are diphyletic (Anura: Hemiphractidae: Gastrotheca) 4 5 David C. Blackburna,*, William E. Duellmanb 6 a Department of Vertebrate Zoology & Anthropology, California Academy of Sciences, 55 7 Music Concourse Drive, San Francisco, CA 94118, USA 8 b Biodiversity Institute, University of Kansas, 1345 Jayhawk Boulevard, Lawrence, KS 9 66045, USA 10 * Corresponding author. E-mail address: [email protected] (D.C. Blackburn) 11 12 Abstract 13 Molecular phylogenetic analyses based on expanded taxonomic and geographic sampling 14 support the monophyly of the marsupial frog genera (family Hemiphractidae), resolve six 15 geographically circumscribed lineages within Gastrotheca, and, for the first time, reveal 16 that two divergent lineages of Gastrotheca inhabit the Atlantic Coastal Forests of Brazil.
    [Show full text]
  • 3Systematics and Diversity of Extant Amphibians
    Systematics and Diversity of 3 Extant Amphibians he three extant lissamphibian lineages (hereafter amples of classic systematics papers. We present widely referred to by the more common term amphibians) used common names of groups in addition to scientifi c Tare descendants of a common ancestor that lived names, noting also that herpetologists colloquially refer during (or soon after) the Late Carboniferous. Since the to most clades by their scientifi c name (e.g., ranids, am- three lineages diverged, each has evolved unique fea- bystomatids, typhlonectids). tures that defi ne the group; however, salamanders, frogs, A total of 7,303 species of amphibians are recognized and caecelians also share many traits that are evidence and new species—primarily tropical frogs and salaman- of their common ancestry. Two of the most defi nitive of ders—continue to be described. Frogs are far more di- these traits are: verse than salamanders and caecelians combined; more than 6,400 (~88%) of extant amphibian species are frogs, 1. Nearly all amphibians have complex life histories. almost 25% of which have been described in the past Most species undergo metamorphosis from an 15 years. Salamanders comprise more than 660 species, aquatic larva to a terrestrial adult, and even spe- and there are 200 species of caecilians. Amphibian diver- cies that lay terrestrial eggs require moist nest sity is not evenly distributed within families. For example, sites to prevent desiccation. Thus, regardless of more than 65% of extant salamanders are in the family the habitat of the adult, all species of amphibians Plethodontidae, and more than 50% of all frogs are in just are fundamentally tied to water.
    [Show full text]
  • Global Diversity of Amphibians (Amphibia) in Freshwater
    Hydrobiologia (2008) 595:569–580 DOI 10.1007/s10750-007-9032-2 FRESHWATER ANIMAL DIVERSITY ASSESSMENT Global diversity of amphibians (Amphibia) in freshwater Miguel Vences Æ Jo¨rn Ko¨hler Ó Springer Science+Business Media B.V. 2007 Abstract This article present a review of species amphibians is very high, with only six out of 348 numbers, biogeographic patterns and evolutionary aquatic genera occurring in more than one of the major trends of amphibians in freshwater. Although most biogeographic divisions used herein. Global declines amphibians live in freshwater in at least their larval threatening amphibians are known to be triggered by phase, many species have evolved different degrees of an emerging infectious fungal disease and possibly by independence from water including direct terrestrial climate change, emphasizing the need of concerted development and viviparity. Of a total of 5,828 conservation efforts, and of more research, focused on amphibian species considered here, 4,117 are aquatic both their terrestrial and aquatic stages. in that they live in the water during at least one life- history stage, and a further 177 species are water- Keywords Amphibia Á Anura Á Urodela Á dependent. These numbers are tentative and provide a Gymnophiona Á Species diversity Á Evolutionary conservative estimate, because (1) the biology of many trends Á Aquatic species Á Biogeography Á Threats species is unknown, (2) more direct-developing spe- cies e.g. in the Brachycephalidae, probably depend directly on moisture near water bodies and (3) the Introduction accelerating rate of species discoveries and descrip- tions in amphibians indicates the existence of many Amphibians are a textbook example of organisms more, yet undescribed species, most of which are living at the interface between terrestrial and aquatic likely to have aquatic larvae.
    [Show full text]
  • Download Download
    Phyllomedusa 7(2):143-148, 2008 © 2008 Departamento de Ciências Biológicas - ESALQ - USP ISSN 1519-1397 Ovipositing behavior in the egg-brooding frog Stefania ayangannae (Anura, Hemiphractidae) D. Bruce Means1, William E. Duellman2 and Valerie C. Clark3 1 Coastal Plains Institute and Land Conservancy, 1313 Milton Street, Tallahassee, FL 32303, USA. E-mail: [email protected]. 2 Natural History Museum and Biodiversity Research Center, University of Kansas, 1345 Jayhawk Blvd., Lawrence, Kansas 66045, USA. E-mail: [email protected]. 3 School of Pharmacy, Queen’s University in Belfast, Belfast BT9 7BL, Northern Ireland, UK. E-mail: [email protected]. Keywords: Anura, Hemiphractidae, Stefania ayangannae, ovipositing behavior, Wokomung Massif, Guyana. Palabras clave: Anura, Hemiphractidae, Stefania ayangannae, comportamiento de la postura, Wokomung Massif, Guyana. Frogs of the family Hemiphractidae, as for at least 6 of the 18 described species (Rivero recognized by Wiens et al. (2007), are unique 1968, Duellman and Hoogmoed 1984, Señaris among anurans in that the eggs develop on the et al. 1997, MacCulloch and Lathrop back or in dorsal pouches in the female 2006a,b,c). Oviposition, male behavior during (Duellman and Maness 1980). Females of fertilization, and placement of eggs on the species of Cryptobatrachus, Hemiphractus, and female’s dorsum have been described in one Stefania carry their eggs and young on their captive pair of Stefania (species not identified backs; the eggs are attached to the body by a but probably S. riveroi) from Yuruani tepui in glutinous material (Jungfer and Boehme 1991). Venezeula (Magdefrau 1991). Herein we In other hemiphractids, the eggs develop in a describe these behaviors in a wild pair of S.
    [Show full text]
  • 1704632114.Full.Pdf
    Phylogenomics reveals rapid, simultaneous PNAS PLUS diversification of three major clades of Gondwanan frogs at the Cretaceous–Paleogene boundary Yan-Jie Fenga, David C. Blackburnb, Dan Lianga, David M. Hillisc, David B. Waked,1, David C. Cannatellac,1, and Peng Zhanga,1 aState Key Laboratory of Biocontrol, College of Ecology and Evolution, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510006, China; bDepartment of Natural History, Florida Museum of Natural History, University of Florida, Gainesville, FL 32611; cDepartment of Integrative Biology and Biodiversity Collections, University of Texas, Austin, TX 78712; and dMuseum of Vertebrate Zoology and Department of Integrative Biology, University of California, Berkeley, CA 94720 Contributed by David B. Wake, June 2, 2017 (sent for review March 22, 2017; reviewed by S. Blair Hedges and Jonathan B. Losos) Frogs (Anura) are one of the most diverse groups of vertebrates The poor resolution for many nodes in anuran phylogeny is and comprise nearly 90% of living amphibian species. Their world- likely a result of the small number of molecular markers tra- wide distribution and diverse biology make them well-suited for ditionally used for these analyses. Previous large-scale studies assessing fundamental questions in evolution, ecology, and conser- used 6 genes (∼4,700 nt) (4), 5 genes (∼3,800 nt) (5), 12 genes vation. However, despite their scientific importance, the evolutionary (6) with ∼12,000 nt of GenBank data (but with ∼80% missing history and tempo of frog diversification remain poorly understood. data), and whole mitochondrial genomes (∼11,000 nt) (7). In By using a molecular dataset of unprecedented size, including 88-kb the larger datasets (e.g., ref.
    [Show full text]
  • Download Download
    Book review Duellman, W. E. 2015. Marsupial frogs: Gastrotheca & allied genera; with osteology by Linda Trueb. x + 407 pp. Johns Hopkins University Press, Baltimore, Maryland. ISBN 978-1-4214-1675-5 (Hbk) ISBN 978-1-4214-1676-5 (Pdf) Price: USD 120. www.press.jhu.edu I was a lucky eavesdropper on a decade of Bill Duellman’s 50-year conversation with America he introduced this 23 year-old to several species. I remember well collecting Gastrotheca riobam bae in the city of Quito, carefully pulling Gastrotheca ochoai from spiny bromeliads on hot and dry mountainside in southern Peru, and following the eyeshine of an Amphignathodon guentheri high in a tree across a seemingly impassable stream in Ecuador. Marsupial frogs (Hemiphractidae, six genera, 104 species) are a fascinating clade in which females brood developing embryos on the dorsum in modes ranging from simple adherence to the dorsum, to a closed dorsal pouch, to pouches within the body cavity behind the peritoneal layer. Amazingly, in some species Duellman used specimens and data from 78 females give birth to feeding tadpoles and in institutions; this depth of coverage is increasingly others to froglets. Species range from Panama to rare, as most taxonomic treatments tend to focus Bolivia and southeast Brazil, inhabiting a variety only on a few collections. Despite being a of habitats and elevations including rainforest, monograph, the introductory chapters are easy reading, concisely informative, and will be forest, páramo, and puna, from sea level to 4360 interesting to a diverse audience. m (see Chapter 8). They inhabit both pristine and High-quality images of live frogs were disturbed areas—G.
    [Show full text]
  • Phylogenetics, Classification, and Biogeography of the Treefrogs (Amphibia: Anura: Arboranae)
    Zootaxa 4104 (1): 001–109 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Monograph ZOOTAXA Copyright © 2016 Magnolia Press ISSN 1175-5334 (online edition) http://doi.org/10.11646/zootaxa.4104.1.1 http://zoobank.org/urn:lsid:zoobank.org:pub:D598E724-C9E4-4BBA-B25D-511300A47B1D ZOOTAXA 4104 Phylogenetics, classification, and biogeography of the treefrogs (Amphibia: Anura: Arboranae) WILLIAM E. DUELLMAN1,3, ANGELA B. MARION2 & S. BLAIR HEDGES2 1Biodiversity Institute, University of Kansas, 1345 Jayhawk Blvd., Lawrence, Kansas 66045-7593, USA 2Center for Biodiversity, Temple University, 1925 N 12th Street, Philadelphia, Pennsylvania 19122-1601, USA 3Corresponding author. E-mail: [email protected] Magnolia Press Auckland, New Zealand Accepted by M. Vences: 27 Oct. 2015; published: 19 Apr. 2016 WILLIAM E. DUELLMAN, ANGELA B. MARION & S. BLAIR HEDGES Phylogenetics, Classification, and Biogeography of the Treefrogs (Amphibia: Anura: Arboranae) (Zootaxa 4104) 109 pp.; 30 cm. 19 April 2016 ISBN 978-1-77557-937-3 (paperback) ISBN 978-1-77557-938-0 (Online edition) FIRST PUBLISHED IN 2016 BY Magnolia Press P.O. Box 41-383 Auckland 1346 New Zealand e-mail: [email protected] http://www.mapress.com/j/zt © 2016 Magnolia Press All rights reserved. No part of this publication may be reproduced, stored, transmitted or disseminated, in any form, or by any means, without prior written permission from the publisher, to whom all requests to reproduce copyright material should be directed in writing. This authorization does not extend to any other kind of copying, by any means, in any form, and for any purpose other than private research use.
    [Show full text]
  • Cryptobatrachus Boulengeri
    HERPETOTROPICOS Vol. 10(1-2):51-52 ISSN 1690-7930 (Printed) ISSN 1856-9285 (Online) RUEDA-SOLANO L.A and VARGAS-SALINAS F. - CRYPTOBATRACHUS BOULENGERI (ANURA): DISPrintedTRIBU inT Venezuela.ION EXT AllENSION rights reserved51 Copyright © 2014 BIOGEOS CRYPTOBATRACHUS BOULENGERI (BOULENGER’S BACKPACK FROG) LATITUDINAL AND ALTITUDINAL RANGE EXTENSION LUIS ALBERTO RUEDA-SOLANO1,3 AND FERNANDO VARGAS-SALINAS2 1 Facultad de Ciencias Básicas, Universidad del Magdalena, Santa Marta, Colombia. 2 Programa de Biología, Facultad de Ciencias Básicas y Tecnologías, Universidad del Quindío, Armenia, Colombia. Abstract: A new distribution record for the frog Cryptobatrachus boulengeri (Anura: Hemiphractidae) is reported in this short note. The new record expand the distribution range of this species more than 60 Km eastward from nearest previously reported place and lowering its lower altitudinal distribution range from 360 down to 250 m elevation. Key words: Amphibia, Anura, Hemiphractidae, Sierra Nevada de Santa Marta, Colombia. Resumen: L.A. Rueda-Solano y F. Vargas-Salinas. “Cryptobatrachus boulengeri (Rana cargadora de Boulenger) Extension de rango latitudinal y altitudinal”. Un nuevo registro para la rana Cryptobatrachus boulengeri (Anura: Hemiphractidae) es reportado en esta nota corta. Los nuevos registros expanden el rango de distribución conocido para esta especie en más de 60 Km al este de la localidad más cercana y extiende su rango altitudinal de 360 a 250 m de altitud. INTRODUCTION The genus Cryptobatrachus (Hemiphractidae) is composed of six species distributed in Colombia and Venezuela, northern of South America (Lynch 2008, Frost 2014). Among those species, C. boulengeri Ruthven (1916) is an endangered frog species (Stuart et al. 2008) endemic to the Sierra Nevada de Santa Marta, an isolated mountain range in Caribbean Colombia with wet montane habitats surrounded by dry forests in adjacent lowlands (Espinal and Montenegro 1963, Ruiz-Carranza et al.
    [Show full text]
  • Type-Specimens of Amphibians in the University of Michigan Museum of Zoology
    MISCELLANEOUS PUBLICATIONS MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN NO. 166 Type-Specimens of Amphibians in the University of Michigan Museum of Zoology Arnold G. Kluge Museum of Zoology and Division of Biological Sciences The University of Michigan Ann Arbor, Michigan 48109 Ann Arbor MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN November 22, 1983 MISCELLANEOUS PUBLICATIONS MUSEUM OF ZOOLOGY, UNIVERSITY OF MICHIGAN The publications of the Museum of Zoology, University of Michigan consist of two series-the Occasional Papers and the Miscellaneous Publications. Both series were found- ed by Dr. Bryant Walker, Mr. Bradshaw H. Swales, and Dr. W. W. Newcomb. The Occasional Papers, publication of which was begun in 1913, serve as a medium for original studies based principally upon the collections in the Museum. They are issued separately. When a sufficient number of pages has been printed to make a volume, a title page, table of contents, and an index are supplied to libraries and in- dividuals on the mailing list for the series. The Miscellaneous Publications, which include papers on field and museum tech- niques, monographic studies, and other contributions not within the scope of the Occa- sional Papers, are published separately. It is not intended that they be grouped into volumes. Each number has a title page and, when necessary, a table of contents. A complete list of publications on Birds, Fishes, Insects, Mammals, Mollusks, and Reptiles and Amphibians is available. Address inquiries to the Director, Museum of Zool- ogy, Ann Arbor, Michigan 48109. MISCELLANEOUS PUBLICATIONS MUSEUM OF ZOOLOGY, UNIVEKSI'I'Y OF MICHIGAN NO. 166 Type-Specimens of Amphibians in the University of Michigan Museum of Zoology Arnold G.
    [Show full text]
  • PEARCE-SELLARDS Series NUMBER 11 Taxonomy of the Neotropical Hylidae
    THE PEARCE- SELLARDS Series NUMBER 11 Taxonomy of the Neotropical Hylidae htj BERTHA LUTZ NOVEMBER, 1968 TEXAS MEMORIAL MUSEUM / 24TH & TRINITY / AUSTIN, TEXAS W. W. NEWCOMB, JR., DIRECTOR Contents Abstract - 5 Subfamily: Hvlinae Gadow 6 Subfamily: Phvllomedusinae 7 Subfamily: Triprioninae 10 Subfamily; Opisthodelphynae 13 Diagnoses 17 Generic Diagnoses 18 Appendix 22 Bibliography 24 Illustrations FIGURES 1. Possible scheme of relationships of hvlid genera 5 2. Hypothesized scheme of relationships of the Hvlidae ( Phyllomedusinae) 9 3. Hypothesized scheme ofrelationships of the Hylidae (Triprioninae) 11 4. Hypothesized scheme ofrelationships of the Hylidae (Opisthodelphynae) 14 TABLES 1. Genera Hylidarum 8 3 Taxonomy of the Neotropical Hylidae * BERTHA LUTZ ABSTRACT The Hylidae are arciferous, procoelian frogs, generally having maxillary teeth. Presumably derived from bnfonid stock (Noble, 1931), one of the dis- tinctive features of the family is the cartilage intercalated between the penul- timate and the terminal phalanx of the digits, which is claw-shaped and swollen at the base. The digits usually terminate in expanded disks which, together with the intercalary cartilage, subserve the function of climbing. Al- though most of the members of this family are tree frogs, some are aquatic in the adult stage; others are phragmotic, resting upright in cavities of the right size, and plugging the lumen with the head. A number are bromeli- colous, and one or two live in giant bamboos, having water-holding septa. One genus is fossorial. The type genus, Hyla (Fig. 1) is widespread except for a hiatus in the Indo-Malayan, Polynesian, Ethiopian and Madagascan regions. The largest number of species is found in the New World.
    [Show full text]