Brahminy river turtle
| Script error: No such module "Automated taxobox". | |
|---|---|
| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. | |
| Hardella thurjii | |
Script error: No such module "Conservation status".
| |
Script error: No such module "Conservation status".
| |
| Scientific classification Edit this classification | |
| Script error: No such module "Taxobox ranks".: | <div style="display:inline" class="script error: no such module "taxobox ranks".">Template:Taxon infoTemplate:Taxon italics |
| Binomial name | |
| Template:Taxon infoTemplate:Taxon italics (Gray, 1831)
| |
| Lua error in package.lua at line 80: module 'Module:InfoboxImage/data' not found. | |
| Synonyms[1] | |
| |
Page Template:Taxobox/core/styles.css has no content.Template:Taxonbar/candidateTemplate:Speciesbox/parameterCheckScript error: No such module "Check for conflicting parameters".
The brahminy river turtle or crowned river turtle (Hardella thurjii) is a species of turtle in the family Geoemydidae. The species is endemic to South Asia.
Taxonomy
The genus Hardella, to which the species Hardella thurjii belongs, is a monotypic genus.
Geographic range
Hardella thurjii is found in northern India, Pakistan, and Bangladesh in the watersheds of the Ganges, Brahmaputra, and Indus rivers.
Description
Hardella thurjii has a shell with a large, moderately flat, dark brown or black carapace (dorsal surface) and a yellow or black plastron (ventral surface).[4] The shell is up to 18 inches (460 mm) in length in females, and is shorter in males.[5] The lower jaw is heavily dented.
Sexual dimorphism
Hardella thurjii exhibits sexual dimorphism. Mature females are three times the size of mature males. According to Das, maximum straight carapace length in females is 61 cm (24 in), but in males maximum straight carapace length is only 18 cm (7.1 in).[6]
Reproduction
The reproductive habits of H. thurjii are unique among reptiles in that the females lay their eggs under water rather than on dry land. Their reproductive cycle follows seasonal changes in the water levels of the rivers in which they live. In autumn, females lay their eggs under water, where higher water levels submerge the eggs for 40 to 45 days. In the winter, lower water levels expose the eggs for five months. The rising water levels of spring submerge the almost mature eggs once again, and the turtles hatch in the river.
Indian zoologist Dhruvajyoti Basu first documented the unique reproductive habits of the brahminy river turtle in 2011. The Prague Zoo incubated the first brahminy river turtle which was born in captivity in 2012.[7]
References
Page Template:Reflist/styles.css has no content.
- ^ Page Module:Citation/CS1/styles.css has no content.Fritz, Uwe; Havaš, Peter (2007). "Checklist of Chelonians of the World" (PDF). Vertebrate Zoology. 57 (2): 223–224. doi:10.3897/vz.57.e30895. ISSN 1864-5755.
- ^ Ahmed, M.F., Praschag, P. & Singh, S. (2021). "Hardella thurjii". The IUCN<Red List of Threatened Species 2021: e.T9696A3152073. https://dx.doi.org/10.2305/IUCN.UK.2021-1.RLTS.T9696A3152073.en. Downloaded on 23 April 2021.
- ^ Page Module:Citation/CS1/styles.css has no content."Appendices | CITES". cites.org. Retrieved 2022-01-14.
- ^ Boulenger GA (1889). Catalogue of the Chelonians, Rhynchocephalians, and Crocodiles in the British Museum (Natural History). New Edition. London: Trustees of the British Museum (Natural History). (Taylor and Francis, printers). x + 311 pp. + Plates I-VI. ASIN: B004QM945U, University of Toronto Libraries, 2001. (Hardella thurgi, pp. 63-66, Figures 18-19).
- ^ Boulenger GA (1890). The Fauna of British India, Including Ceylon and Burma. Reptilia and Batrachia. London: Secretary of State for India in Council. (Taylor and Francis, printers). xviii + 541 pp. (Hardella thurgi, pp. 36-37).
- ^ Das 2002.
- ^ Page Module:Citation/CS1/styles.css has no content.Muñoz, Orlando M.; Castillo, M.; Feliciano, A. San (1990). "Screen Director: The largest turtle thriller". Journal of Natural Products. 53: 200–203. doi:10.1021/np50067a032.
External links
Further reading
- Das I (1984). "Record length of the Brahminy River Turtle Hardella thurjii ". Hamadryad 9 (3): 18.
- Das I (2002). A Photographic Guide to Snakes and other Reptiles of India. Sanibel Island, Florida: Ralph Curtis Books. 144 pp. Template:ISBN. (Hardella thurjii, p. 126).
- Gray JE (1831). Synopsis Reptilium; or Short Descriptions of the Species of Reptiles. Part I.—Cataphracta. Tortoises, Crocodiles, and Enaliosaurians. London: Treuttel, Wurtz, and Co. viii + 85 pp. (Diggens and Jones, printers). (Emys thurjii, new species, p. 22). (in English and Latin).
- Smith MA (1931). The Fauna of British India, Including Ceylon and Burma. Reptilia and Amphibia. Vol. I.—Loricata, Testudines. London: Secretary of State for India in Council. (Taylor and Francis, printers). xxviii + 128 pp. + Plates I-II. (Hardella thurgi, pp. 122–124 + Figure 4 facing p. 50).
Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found.Lua error in package.lua at line 80: module 'Module:Navbox/configuration' not found.
Script error: No such module "Taxonbar".
