Biology:Phrynops hilarii
| Phrynops hilarii | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Pleurodira |
| Family: | Chelidae |
| Genus: | Phrynops |
| Species: | P. hilarii
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| Binomial name | |
| Phrynops hilarii (A.M.C. Duméril & Bibron, 1835)[1]
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| Synonyms | |
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List
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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.[2]
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.[3]
Habitat
P. hilarii inhabits streams, lakes, and swamps with abundant aquatic vegetation and soft bottoms.[4]
Description
File:Hilaire’s toadhead turtle 2014 11 08.ogv
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. [5][4]
Biology
An omnivorous species, P. hilarii mainly feeds on arthropods, with a preference for copepods, ostracods, and hemipterans. [6] They feed also on fish, birds, reptiles, small mammals and dead animals. It is oviparous. [3] These turtles can live for up to 37 years. [7]
Females lay eggs twice a year, one clutch between February and May and the other between September and December. They lay from 9 to 14 eggs, with a maximum of 32 eggs and an incubation period of approximately 150 days.
References
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Wikimedia Commons has media related to Phrynops hilarii. |
- ↑ 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).
- ↑ 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).
- ↑ 3.0 3.1 Species Phrynops hilarii at The Reptile Database www.reptile-database.org.
- ↑ 4.0 4.1 "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).
Wikidata ☰ Q1080458 entry
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