First Record O Mesoclemmys Vanderhaegei (Bour, 1973)
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Geographic Variation in the Matamata Turtle, Chelus Fimbriatus, with Observations on Its Shell Morphology and Morphometry
n*entilkilt ilil Biok,gr', 1995. l(-l):19: 1995 by CheloninD Research Foundltion Geographic Variation in the Matamata Turtle, Chelus fimbriatus, with Observations on its Shell Morphology and Morphometry MlncBLo R. SANcnnz-Vu,urcnAr, PnrER C.H. PnrrcHARD:, ArrnEro P.rorrLLo-r, aNn Onan J. LINlnBs3 tDepartment of Biological Anthropolog-,- and Anatomy, Duke lJniversin' Medical Cetter. Box 3170, Dtu'hcun, North Carolina277l0 USA IFat 919-684-8034]; 2Florida Audubotr Societ-t, 460 High,n;a,- 436, Suite 200, Casselberry, Florida 32707 USA: iDepartanento de Esttdios Anbientales, llniyersitlad Sinzrin Bolltnt", Caracas ]O80-A, APDO 89OOO l/enerte\a Ansrucr. - A sample of 126 specimens of Chelusftmbriatus was examined for geographic variation and morphology of the shell. A high degree of variation was found in the plastral formula and in the shape and size of the intergular scute. This study suggests that the Amazon population of matamatas is different from the Orinoco population in the following characters: shape ofthe carapace, plastral pigmentation, and coloration on the underside of the neck. Additionatly, a preliminary analysis indicates that the two populations could be separated on the basis of the allometric growth of the carapace in relation to the plastron. Kry Wonus. - Reptilia; Testudinesl Chelidae; Chelus fimbriatus; turtle; geographic variationl allometryl sexual dimorphism; morphology; morphometryl osteology; South America 'Ihe matamata turtle (Chelus fimbricttus) inhabits the scute morpholo..ey. Measured characters (in all cases straight- Amazon, Oyapoque. Essequibo. and Orinoco river systems line) were: maximum carapace len.-uth (CL). cArapace width of northern South America (Iverson. 1986). Despite a mod- at the ler,'el of the sixth marginal scute (CW). -
First Report of Neopolystoma Price, 1939 (Monogenea: Polystomatidae) with the Description of Three New Species Louis H
Du Preez et al. Parasites & Vectors (2017) 10:53 DOI 10.1186/s13071-017-1986-y RESEARCH Open Access Tracking platyhelminth parasite diversity from freshwater turtles in French Guiana: First report of Neopolystoma Price, 1939 (Monogenea: Polystomatidae) with the description of three new species Louis H. Du Preez1,2*, Mathieu Badets1, Laurent Héritier1,3,4 and Olivier Verneau1,3,4 Abstract Background: Polystomatid flatworms in chelonians are divided into three genera, i.e. Polystomoides Ward, 1917, Polystomoidella Price, 1939 and Neopolystoma Price, 1939, according to the number of haptoral hooks. Among the about 55 polystome species that are known to date from the 327 modern living chelonians, only four species of Polystomoides are currently recognised within the 45 South American freshwater turtles. Methods: During 2012, several sites in the vicinity of the cities Cayenne and Kaw in French Guiana were investigated for freshwater turtles. Turtles were collected at six sites and the presence of polystomatid flatworms was assessed from the presence of polystome eggs released by infected specimens. Results: Among the three turtle species that were collected, no polystomes were found in the gibba turtle Mesoclemmys gibba (Schweigger, 1812). The spot-legged turtle Rhinoclemmys punctularia (Daudin, 1801) was infected with two species of Neopolystoma Price, 1939, one in the conjunctival sacs and the other in the urinary bladder, while the scorpion mud turtle Kinosternon scorpioides (Linnaeus, 1766) was found to be infected with a single Neopolystoma species in the conjunctival sacs. These parasites could be distinguished from known species of Neopolystoma by a combination of morphological characteristics including body size, number and length of genital spines, shape and size of the testis. -
Demographic Consequences of Superabundance in Krefft's River
i The comparative ecology of Krefft’s River Turtle Emydura krefftii in Tropical North Queensland. By Dane F. Trembath B.Sc. (Zoology) Applied Ecology Research Group University of Canberra ACT, 2601 Australia A thesis submitted in fulfilment of the requirements of the degree of Masters of Applied Science (Resource Management). August 2005. ii Abstract An ecological study was undertaken on four populations of Krefft’s River Turtle Emydura krefftii inhabiting the Townsville Area of Tropical North Queensland. Two sites were located in the Ross River, which runs through the urban areas of Townsville, and two sites were in rural areas at Alligator Creek and Stuart Creek (known as the Townsville Creeks). Earlier studies of the populations in Ross River had determined that the turtles existed at an exceptionally high density, that is, they were superabundant, and so the Townsville Creek sites were chosen as low abundance sites for comparison. The first aim of this study was to determine if there had been any demographic consequences caused by the abundance of turtle populations of the Ross River. Secondly, the project aimed to determine if the impoundments in the Ross River had affected the freshwater turtle fauna. Specifically this study aimed to determine if there were any difference between the growth, size at maturity, sexual dimorphism, size distribution, and diet of Emydura krefftii inhabiting two very different populations. A mark-recapture program estimated the turtle population sizes at between 490 and 5350 turtles per hectare. Most populations exhibited a predominant female sex-bias over the sampling period. Growth rates were rapid in juveniles but slowed once sexual maturity was attained; in males, growth basically stopped at maturity, but in females, growth continued post-maturity, although at a slower rate. -
New Records of Mesoclemmys Raniceps (Testudines, Chelidae) for the States of Amazonas, Pará and Rondônia, North Brazil, Including the Tocantins Basin
Herpetology Notes, volume 12: 283-289 (2019) (published online on 18 February 2019) New records of Mesoclemmys raniceps (Testudines, Chelidae) for the states of Amazonas, Pará and Rondônia, North Brazil, including the Tocantins basin Elizângela Silva Brito1,*, Rafael Martins Valadão2, Fábio Andrew G. Cunha3, Cristiane Gomes de Araújo4, Patrik F. Viana5, and Izaias Fernandes Médice6 Of the 58 species of living Chelidae (Rhodin et al., Among the rare species of the genus, Mesoclemmys 2017), 20 are known from Brazil (Costa and Bérnils, raniceps (Gray, 1856), a medium-sized freshwater turtle 2018). Of these, nine occur in the Amazon basin, (approximately 330 mm carapace length - CL; Rueda- including species of the genera Chelus, Mesoclemmys, Almonacid et al., 2007), inhabits streams and flooded Platemys, Phrynops and Rhinemys (Ferrara et al., 2017). forest, but can also be found in rivers, shallow lakes and The genus Mesoclemmys is the most diverse in Brazil, temporary pools in the forest (Vogt, 2008; Ferrara et and five of the eight species of Mesoclemmys in Brazil al., 2017). Mesoclemmys raniceps is relatively easy to occur within the Amazon basin (Souza, 2005; Ferrara identify, especially as an adult. Specimens of this species et al., 2017). Species of genus Mesoclemmys are rare have a large broad head, which is approximately one and inconspicuous when compared to other freshwater quarter of the length of the CL (head width between 23- turtles, and live in hard-to-reach places, to extent that 27%). The head is dark, but may show depigmentation in populations are rarely studied. This genus represents adults, resulting in a lighter color, generally in patches, the least studied among Amazonian turtles (Vogt, 2008; as shown in Figure 2 (af). -
Check List 8(2): 294-297, 2012 © 2012 Check List and Authors Chec List ISSN 1809-127X (Available at Journal of Species Lists and Distribution
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by ZENODO Check List 8(2): 294-297, 2012 © 2012 Check List and Authors Chec List ISSN 1809-127X (available at www.checklist.org.br) Journal of species lists and distribution N New records and distribution extensions of three species of Mesoclemmys Gray, 1863 (Testudines: Chelidae) in ISTRIBUTIO Mato Grosso state, Brazil, with observations on terrestrial D movements RAPHIC G EO Elizângela Silva de Brito 1*, Christine Strüssmann 2,3, Ricardo Alexandre Kawashita-Ribeiro 3, Drausio G N Honório Morais 4, Robson Waldemar Ávila 5 and Vitor Azarias Campos 3 O OTES 1 Programa de Pós-Graduação em Biologia de Água Doce e Pesca Interior, Instituto Nacional de Pesquisas da Amazônia. Av. André Araújo, n. 2936, N Aleixo. CEP 69060-001. Manaus, AM, Brazil. 2 Departamento de Ciências Básicas e Produção Animal, Faculdade de Agronomia, Medicina Veterinária e Zootecnia, Universidade Federal de Mato Grosso. Av. Fernando Correia da Costa, n. 2367, Boa Esperança. CEP 78060-900. Cuiabá, MT, Brazil. 3 Programa de Pós-graduação em Ecologia e Conservação da Biodiversidade, Universidade Federal de Mato Grosso, Instituto de Biociências. Av. Fernando Correia da Costa, n. 2367, Boa Esperança. CEP 78060-900. Cuiabá, MT, Brazil. 4 Universidade Estadual Paulista Júlio de Mesquita Filho, Campus de Botucatu, Instituto de Biociências, Departamento de Parasitologia. Distrito de Rubião, Caixa Postal 510. CEP 18618-000. Botucatu, SP, Brazil. 5 Universidade Regional do Cariri, Campus do Pimenta, Centro de Ciências Biológicas e da Saúde, Departamento de Ciências Biológicas, Rua Cel. Antonio Luiz, 1161, Bairro do Pimenta. -
Recent Evolutionary History of the Australian Freshwater Turtles Chelodina Expansa and Chelodina Longicollis
Recent evolutionary history of the Australian freshwater turtles Chelodina expansa and Chelodina longicollis. by Kate Meredith Hodges B.Sc. (Hons) ANU, 2004 A thesis submitted in fulfilment of the requirements of the degree of Doctor of Philosophy School of Biological Sciences Department of Genetics and Evolution The University of Adelaide December, 2015 Kate Hodges with Chelodina (Macrochelodina) expansa from upper River Murray. Photo by David Thorpe, Border Mail. i Declaration I certify that this work contains no material which has been accepted for the award of any other degree or diploma in any university or other tertiary institution and, to the best of my knowledge and belief, contains no material previously published or written by another person, except where due reference has been made in the text. In addition, I certify that no part of this work will, in the future, be used in a submission for any other degree or diploma in any university or other tertiary institution without the prior approval of the University of Adelaide and where applicable, any partner institution responsible for the joint-award of this degree. I give consent to this copy of my thesis when deposited in the University Library, being made available for loan and photocopying, subject to the provisions of the Copyright Act 1968. The author acknowledges that copyright of published works contained within this thesis resides with the copyright holder(s) of those works. I also give permission for the digital version of my thesis to be made available on the web, via the University’s digital research repository, the Library catalogue and also through web search engines, unless permission has been granted by the University to restrict access for a period of time. -
Geographical Distribution Patterns of South American Side-Necked Turtles (Chelidae), with Emphasis on Brazilian Species
Rev. Esp. Herp. (2005) 19:33-46 Geographical distribution patterns of South American side-necked turtles (Chelidae), with emphasis on Brazilian species FRANCO LEANDRO SOUZA Universidade Federal de Mato Grosso do Sul, Centro de Ciências Biológicas e da Saúde, Departamento de Biologia, 79070-900 Campo Grande, MS, Brazil (e-mail: [email protected]) Abstract: The Chelidae (side-necked turtles) are the richest and most widespread turtle family in South America with endemic patterns at the species level related to water basins. Based on available literature records, the geographic distribution of the 22 recognized chelid species from South America was examined in relation to water basins and for the 19 Brazilian species also in light of climate and habitat characteristics. Species-distribution maps were used to identify species richness in a given area. Parsimony analysis of endemicity (PAE) was employed to verify the species-areas similarities and relationships among the species. For Brazilian species, annual rainfall in each water basin explained 81% of variation in turtle distribution and at a regional scale (country-wide) temperature also influenced their distribution. While rainfall had a significant positive relationship with species number in a given area, a negative but non-significant relationship was identified for temperature. Excepting an unresolved clade formed by some northern water basins, well-defined northern-northeastern and central-south groups (as identified for water basins) as well as biome differentiation give support to a hypothesis of a freshwater turtle fauna regionalization. Also, a more general biogeographical pattern is evidenced by those Brazilian species living in open or closed formations. -
Refractometry As an Alternative to the Biuret Method for Measuring Total Serum Proteins in Podocnemis Expansa (Podocnemididae) and Phrynops Geoffroanus (Chelidae)
ACTA AMAZONICA http://dx.doi.org/10.1590/1809-4392201601383 Refractometry as an alternative to the biuret method for measuring total serum proteins in Podocnemis expansa (Podocnemididae) and Phrynops geoffroanus (Chelidae) Lourdes Marina Bezerra PESSOA1*, Maíra Gonçalves da Mota LIMA1, Filipe Tavares CARNEIRO1, Nathalia Salgado ZANANI1, Marcela Corrêa SCALON1, Thamiris Figueiredo SILVA1, Mariana Accioly LIMA1, Maia Araújo ABRAHIM1, Giane Regina PALUDO1 1 University of Brasilia, Faculty of Agronomy and Veterinary Medicine, Federal District, Brazil. * Corresponding author: [email protected] ABSTRACT Total serum protein is a significant indicator of health condition in animals. The aim of this study was to analyze the precision of the portable refractometer in determining the concentration of total serum proteins in Podocnemis expansa and Phrynops geoffroanus. A total of 26 animals were used. The blood samples were collected from the supraoccipital sinus and stored in tubes without anticoagulant. Total serum protein was determined using both the biuret reaction and refractometry. The total serum protein mean concentration (g dL-1) with biuret method and refractometry for P. expansa were 3.16 and 3.2; and for P. geoffroanus were 3.56 and 2.72, respectively. These results indicate that total serum protein values can be determined with precision in P. expansa and P. geoffroanus using a portable refractometer. KEYWORDS: biuret method, refractometry, Podocnemis expansa, Phrynops geoffroanus. Refratometria como alternativa ao método do biureto para mensuração de proteínas séricas totais em Podocnemis expansa e Phrynops geoffroanus (Podocnemididae, Chelidae) RESUMO A proteína sérica total é um indicador significativo do estado de saúde em animais. O objetivo desse estudo foi analisar a precisão do refratômetro portátil para determinar a concentração de proteínas séricas totais em Podocnemis expansa e Phrynops geoffroanus. -
A New Subspecies of Chelodina Mccordi (Testudines: Chelidae) from Eastern Rote Island, Indonesia
A New Subspecies of Chelodina mccordi (Testudines: Chelidae) from Eastern Rote Island, Indonesia By William P. McCord1, Mehdi Joseph-Ouni2, and Cris Hagen3 1East Fishkill Animal Hospital, Hopewell Junction, NY 12533, USA. 2EO Wildlife & Wilderness Conservation, Brooklyn, NY 11228, USA. 3Savannah River Ecology Laboratory, Aiken, SC 29802, USA. Abstract. A recent field trip to Rote (Pulau Rote; Roti) Island involving these authors has confirmed that two morphologically distinct forms of Chelodina exist there; leading here to a formal description and diagnosis of Chelodina mccordi roteensis ssp. nov. from eastern Rote Island, Indonesia. Our morphological and phenotypic analysis differentiates this new subspecies from the conspecific nominotypical form. Key words: Turtle, Pleurodira, chelid, Chelodina mccordi, Rote Island, Indonesia. Extant species of side-necked turtles narrow parietal crests, relatively more robust heads (Pleurodira Cope, 1864) are assigned to three (for subgeneric group A) and shells, and an overall families: Chelidae Gray, 1825, Podocnemidae brown coloration. Cope, 1868, and Pelomedusidae Cope, 1868. Chelodina mccordi was once well distributed Within the family Chelidae, the genus throughout the lakes and swamps of Rote Island Chelodina Fitzinger, 1826, includes species of snake- or (SALIM and YUWONO, pers. obs.). In the seasonal long-necked turtles. Historically (GOODE, 1967; BUR- lakes of the Central Plateau region, which may have BIDGE et al., 1974) and recently (GEORGES et al., been a zone of intergradation between eastern and 2002), Chelodina has been designated as comprising first western populations, C. mccordi has experienced near two, then three subgeneric groups: A (= Chelodina), B complete extirpation. In the past 20 years population (= Macrochelodina Wells and Wellington, 1985), and C numbers have been diminished to near extinction by (unnamed, containing only Chelodina oblonga Gray, both the pet trade and mismanaged agricultural prac- 1841, = Chelodina colliei Gray, 1856). -
Hatchling Morphology of the Tuberculate Toadhead Turtle (Mesoclemmys Tuberculata [Lüederwaldt, 1926]) from Northeastern Brazil (Testudines: Chelidae)
Herpetology Notes, volume 8: 407-410 (2015) (published online on 12 August 2015) Hatchling morphology of the Tuberculate Toadhead Turtle (Mesoclemmys tuberculata [Lüederwaldt, 1926]) from northeastern Brazil (Testudines: Chelidae) Daniel Oliveira Santana1,*, Thiago Simon Marques2, Gustavo Henrique Calazans Vieira1, Renato Gomes Faria3 and Daniel Oliveira Mesquita1 The tuberculate toad-headed turtle, Mesoclemmys and Molina, 2004), but there are no descriptions of the tuberculata (Lüederwaldt, 1926), is a Neotropical hatchlings in the literature. Therefore, the objective of freshwater turtle endemic to Brazil (Bérnils and Costa, this study was to describe the morphology and color 2012) which is widely distributed in the Northeast region, pattern of a wild hatchling of M. tuberculata from the ranging from the inland northeastern semi-arid region in Atlantic Forest Region in northeastern Brazil. the Parnaíba river to the Atlantic-Northeastern Orient During an investigation about the ecology of freshwater and São Francisco basin (Souza, 2005). This species has turtles in northeastern Brazil, we hand-captured one been recorded in areas of Caatinga and Atlantic Forest hatchling of M. tuberculata on 30 July 2014, close to (Souza, 2005; Batistella et al., 2008; Santos et al., 2008; a pond (Figure 1) in the buffer zone of the Serra de Loebmann and Haddad, 2010; Morato et al., 2011; Itabaiana National Park, Itabaiana municipality, Sergipe Loebmann et al., 2006), and recently was also recorded State, Brazil (S 10º44.287’, W 037º23.189’, 250 m in the Cerrado biome, in the north of Minas Gerais State, a.s.l.). We used a digital caliper (precision of 0.01 mm) Brazil (Silveira and Valinhas, 2010). -
Gibba Turtle) Family: Chelidae (Snake-Necked Turtles) Order: Testudines (Turtles and Tortoises) Class: Reptilia (Reptiles)
UWI The Online Guide to the Animals of Trinidad and Tobago Behaviour Mesoclemmys gibba (Gibba Turtle) Family: Chelidae (Snake-necked Turtles) Order: Testudines (Turtles and Tortoises) Class: Reptilia (Reptiles) Fig. 1. Gibba turtle, Mesoclemmys gibba. [http://www.chelonia.org/Phrynopsgibbus1.JPG, downloaded 25 October 2012] TRAITS. Mesoclemmys gibba, commonly known as the gibba turtle, was previously known as Phrynops gibbus (McCord et al., 2001). The upper region of the shell is known as the carapace which varies in colour from black to chestnut brown or dark grey (Jacksonville Zoo and Gardens, 2010). The carapace does not have a pattern. The length of an adult Mesoclymmys gibba measures from 23-30cm. The carapace length in males however does not exceed 17cm (Murphy, 2014) and the size of hatchlings range from 43 to 48mm (Mittermeier et al., 1978). The ellipsoidal carapace can be slightly bowed with a shallow supracaudal notch (above the tail). Small posterior projections or low keels may be present on the 3rd to 5th broad vertebrals. Therefore the surface can either be slightly roughened, due to the uneven medial keel, or smooth (Jacksonville Zoo and Gardens, 2010). “Neural bones vary from none to five, but, if present, they are rudimentary and never contact the nuchal” (Pritchard and Trebbau, 1984). The bottom region of the shell is known as the plastron which varies in colour from yellow to red brown. It is wide and long, well-developed, somewhat inverted anteriorly with a deep anal notch posteriorly. On each scute there is a brown patch with a possible narrow yellow border occurring anteriorly and UWI The Online Guide to the Animals of Trinidad and Tobago Behaviour posteriorly (Jacksonville Zoo and Gardens 2010). -
Artisanal Fisheries Interactions and Bycatch of Freshwater Turtles at the Tapacurá Reservoir, Northeast Brazil
Herpetology Notes, volume 13: 249-252 (2020) (published online on 14 March 2020) Artisanal fisheries interactions and bycatch of freshwater turtles at the Tapacurá reservoir, Northeast Brazil Rayssa L. Santos¹,²,*, Thaís L. Bezerra², Jozélia M. Sousa Correia², and Ednilza M. dos Santos² Interactions between freshwater turtles and artisanal mortality rates of two species of freshwater turtles P. are well described in the literature (Brito et al., 2015). geoffroanus and M. tuberculata were recorded. A total Environmental pressure from fisheries, coupled with of 23 carcasses were observed in various states of habitat loss, pollution and climate change, have been decomposition, both on the banks of the reservoir and cited as the main causes for the decline of these aquatic trapped in gillnets arranged vertically within the water reptile populations, which are listed in the IUCN body (Figure 1). Endangered Species List (IUCN, 2018). Biometric parameters were obtained and sexing was The term bycatch is defined as the capture of specimens performed when possible, by observing the anal plate that are not the intentional target of a given fishing opening and tail size, following the methodology activity, i.e. the action occurred in a causal, unexpected proposed by Balestra et al. (2016). Necropsies were way (FAO, 1990). Several studies report that the use performed at the Veterinary Hospital belonging to the of different types of fishing gears, especially gillnets, Pernambuco Federal Rural University. contribute to the decline of several aquatic marine M. tuberculata (n=3) had a mean Maximum Straight species (Reeves et al., 2013) and reiterate the limited Carapace Length (MSCL) of 25.3 ± 1.2 cm, and all three amount of information on bycatch species.