Topic
Geoemydidae
About: Geoemydidae is a research topic. Over the lifetime, 82 publications have been published within this topic receiving 1031 citations.
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TL;DR: An individual of the Assam Leaf Turtle Cyclemys gemeli was sighted at an elevation of 580m in Darjeeling, India, which is the first record of the species from theDarjeeling-Sikkim Himalaya, India.
Abstract: An individual of the Assam Leaf Turtle Cyclemys gemeli was sighted at an elevation of 580m in Darjeeling. This is the first record of the species from the Darjeeling-Sikkim Himalaya, India. Photographs and locality record of the sighting are provided in the present communication.
3 citations
TL;DR: A new extinct species of the genus Mauremys (Testudines: Geoemydidae) is described on the basis of three fossils from the late Pleistocene deposit of Tomori Amaga Cave on Miyakojima Island of the Miyako Island Group, Southern Ryukyus, Japan.
Abstract: A new extinct species of the genus Mauremys (Testudines: Geoemydidae) is described on the basis of three fossils from the late Pleistocene deposit of Tomori Amaga Cave on Miyakojima Island of the Miyako Island Group, Southern Ryukyus, Japan. Of these fossils, two (the anterior half of the plastron and the nuchal) were previously tentatively identified as Mauremys mutica, an extant species whose distribution is currently confined to the Yaeyama Island Group within the Ryukyus. The turtle represented by these two specimens and another, previously unreported material (left third peripheral) actually most resembles M. japonica from mainland Japan and the Northern Ryukyus, and M. yabei from the middle Pleistocene of mainland Japan. The fossil turtle however, differs from the other two in exhibiting a medial length of the entoplastron greater than the interhyoplastron in ventral view, and in having a longitudinal groove medial to the gulo—humeral sulcus on the epiplastron evident in dorsal view. The p...
3 citations
Journal Article•
TL;DR: The comparative study on live and museum specimens revealed that male and female individuals of all the four species of Pangshura can be identified by sexual dimorphism.
Abstract: The present paper reports multivariate morphometric analyses for a total of 178 individuals of the Southeast Asian freshwater turtle genus Pangshura including 80 numbers of live and 98 numbers of museum specimens. Allometric change in the body size was examined in the live collected as well as compared with various reptile museums and private collections. The comparative study on live and museum specimens revealed that male and female individuals of all the four species of Pangshura can be identified by sexual dimorphism. The frequency of the morphometric measurements among and within Pangshura species reveales that distinct sexual dimorphism in each species of Pangshura is well observed. Males are always smaller in size than the females. The present observations have revealed that P. sylhetensis is the smallest species under the genus Pangshura, which may reach a carapace length up to 20.5 cm. The present study for the first time has been able to present a diagrammatic representation of P. sylhetensis with plastral formula. Support for recognition of these taxa provides a scenario of the systematics, distribution and natural history of the genus Pangshura.
3 citations
Book Chapter•
01 Jan 2008
TL;DR: The crowned river turtle, Hardella thurjii, is a large freshwater turtle, largely confined to lentic waters in the Indian subcontinent, which shows extreme sexual size dimorphism, females attaining a length over three times that of the males.
Abstract: The crowned river turtle, Hardella thurjii (Family Geoemydidae), is a large (CL to 65 cm) freshwater turtle, largely confined to lentic waters in the Indian subcontinent. The species shows extreme sexual size dimorphism, females attaining a length over three times that of the males. Only plant matter is taken by the species in some areas, but elsewhere prawn or fish may be taken, possibly as carrion. Courtship and mating take place during the summer months in northern India, and 8–19 ellipsoidal eggs may be produced. Heavy exploitation for its flesh and extensive wetland development
projects are among the factors suspected to have made the turtle rare in localities where it was once common, although there is some evidence that the species is difficult to observe in the wild.
3 citations
TL;DR: The occurrence of Rhinoclemmys in the southern Paraguaná Peninsula indicates that during the Late Pleistocene this region had environmental conditions that allowed the survival of these freshwater-terrestrially adapted reptiles, particularly of “paleo-springs” inside a semi-arid region.
Abstract: We describe the first undisputable fossil of Rhinoclemmys (Cryptodira, Geoemydidae) east of the Andes, represented by an isolated nuchal bone found in one of the most important paleontological sites with association of fauna and humans (Muaco site, western Venezuela) from the Late Pleistocene of the southern Caribbean. The nuchal is complete and slightly wider (4.8 cm) than long (4.2 cm), preserving well-defined sulci of the cervical, vertebral 1, marginal 1, and pleural 1. Comparisons with extant and fossil specimens of Rhinoclemmys allow us to attribute this nuchal to Rhinoclemmys, albeit as an indeterminate species. The occurrence of Rhinoclemmys in the southern Paraguana Peninsula indicates that during the Late Pleistocene this region had environmental conditions that allowed the survival of these freshwater-terrestrially adapted reptiles, particularly of “paleo-springs” inside a semi-arid region.
2 citations