Phrynops hilarii
Phrynops hilarii | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Reptilia |
Order: | Testudines |
Suborder: | Pleurodira |
Family: | Chelidae |
Genus: | Phrynops |
Species: | P. hilarii |
Binomial name | |
Phrynops hilarii | |
Synonyms[2][3] | |
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Phrynops hilarii, also commonly known as Hilaire’s side-necked turtle and Hilaire's toadhead turtle, is a species of freshwater turtle in the family Chelidae. The species is endemic to South America.
Etymology
The specific name, hilarii, is in honor of French zoologist Isidore Geoffroy Saint-Hilaire.[4]
Geographic range
P. hilarii is found in southern Brazil (Santa Catarina and Rio Grande do Sul), southward and westward into Uruguay and Argentina, and possibly also in Paraguay and Bolivia.[5]
Habitat
P. hilarii inhabits streams, lakes, and swamps with abundant aquatic vegetation and soft bottoms.[6]
Description
P. hilarii has an oval, flattened carapace, with a maximum straight-line length of approximately 40 cm (16 in), weighing approximately 5 kg (11 lb). The carapace is usually dark brown, olive, or gray, with a yellow border. The head is large and flat, gray to olive above, with a pointed snout and two bicolored chin barbels. There is a black band on each side of the head, which comes out of the muzzle and passes over the eyes, going up to the neck. [7][6]
Biology
An omnivorous species, P. hilarii mainly feeds on arthropods, with a preference for copepods, ostracods, and hemipterans.[8] It feeds also on fishes, reptiles, birds, small mammals, and carrion.[citation needed] It is oviparous.[5] This turtle can live for up to 37 years.[9]
Females lay eggs twice a year, one clutch between February and May and the other between September and December.[citation needed] They lay from 9 to 14 eggs, with a maximum of 32 eggs and an incubation period of approximately 150 days.[citation needed]
References
![](http://upload.wikimedia.org/wikipedia/commons/thumb/d/df/Wikispecies-logo.svg/34px-Wikispecies-logo.svg.png)
![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
- ^ Duméril, André Marie Constant; Bibron, Gabriel (1835). Erpétologie Générale ou Histoire Naturelle Complète des Reptiles. Tome Second. Paris: Roret. 680 pp. (Platemys hilarii, new species, pp. 428-430). (in French).
- ^ Fritz, Uwe; Havaš, Peter (2007). "Checklist of Chelonians of the World". Vertebrate Zoology. 57 (2): 341. doi:10.3897/vz.57.e30895. ISSN 1864-5755.
- ^ van Dijk, Peter Paul; Iverson, John B.; Shaffer, H. Bradley; Bour, Roger; Rhodin, Anders G.J. (2012). "Turtles of the World, 2012 Update: Annotated Checklist of Taxonomy, Synonymy, Distribution, and Conservation Status". Chelonian Research Monographs (5): 000.243–000.328.
- ^ Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). The Eponym Dictionary of Reptiles. Baltimore: Johns Hopkins University Press. xiii + 296 pp. ISBN 978-1-4214-0135-5. (Phrynops hilarii, p. 123).
- ^ a b Species Phrynops hilarii at The Reptile Database www.reptile-database.org.
- ^ a b "Phrynops hilarii ". Turtles of the World
- ^ Cabrera, Mario R.; Colantonio, Sonia E. (2001). "Ontogenetic variation of plastral spotting pattern in Phrynops hilarii (Testudines, Chelidae)" Iheringia, Sér. Zool., Porto Alegre (91): 115–122.
- ^ Alcalde, Leandro; Derocco, Natacha Nara; Rosset, Sergio Daniel (2010). "Feeding in Syntopy: Diet of Hydromedusa tectifera and Phrynops hilarii (Chelidae)" Chelonian Conservation and Biology 9 (1): 3–344.
- ^ "Phrynops hilarii ". AnAge: The Animal Ageing and Longevity Database
Further reading
- Boulenger, George Albert (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-III. (Hydraspis hilarii: p. 220, figure 59, three views of skull; p. 221, figure 60, carapace and plastron; p. 222, species description).
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- Kingdom: Animalia
- Phylum: Chordata
- Class: Reptilia
- Subclass: Anapsida
- Order: Testudines
- Suborder: Pleurodira
Subfamily |
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Chelinae |
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Chelodininae |
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Hydromedusinae |
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Pseudemydurinae |
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- Phylogenetic arrangement of turtles based on Turtles of the World 2021 Update: Annotated Checklist and Atlas of Taxonomy, Synonymy, Distribution, and Conservation Status. Key: †=extinct.
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