Neusticurus bicarinatus (LINNAEUS, 1758)
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Higher Taxa | Gymnophthalmidae (Cercosaurinae), Sauria, Gymnophthalmoidea, Squamata (lizards) |
Subspecies | |
Common Names | E: Two-faced Neusticurus Portuguese: Lagartinho-de-Máscara-Alaranjada, Lagarto-de-Folhiço |
Synonym | Lacerta bicarinata LINNAEUS 1758: 201 Lacerta Bicarinata — LACÉPÈDE 1788 Lacerta bicarinata — BONNATERRE 1789 Cordylus bicarinatus — MEYER 1795: 17 Lacerta bicarinata — SHAW & NODDER 1813: plate 1063 Thorictis bicarinatus — WAGLER 1830: 153 (fide MASSARY & HOOGMOED) Teius A. [da] Bicarinata — GRAY 1831: 29 Neusticurus bicarinatus — DUMÉRIL & BIBRON 1839: 64 Neusticurus (Custa) bicarinatus — O’SHAUGHNESSY 1879: 295 Custa bicarinata — MÜLLER 1880 Neusticurus bicarinatus — PETERS et al. 1970: 206 Neusticurus rudis — GASC 1990: 55 (part.) Neusticurus bicarinatus — CASTOE et al. 2004 |
Distribution | Guiana, Suriname, French Guiana, E Venezuela, Guyana, Brazil (Para, Rondonia, Amapa, Maranhao, Amazonas) Type locality: “Indiis” (in error) |
Reproduction | oviparous |
Types | Holotype: UUZM (= ZMUU) 70 |
Diagnosis | Diagnosis: Neusticurus differs from members of Alopoglossinae by having its tongue covered in imbricate, scale-like papillae instead of oblique plicae (Harris, 1994), from Gymnophthalminae by having moveable eyelids, from Rhachisaurinae by having external ear openings, and from Ecpleopinae by having heterogeneous dorsal scalation. Within Cercosaurinae (sensu Castoe et al., 2004), Neusticurus differs from all genera except Echinosaura, Potamites and Teuchocercus by having heterogeneous dorsal scales. It differs from Echinosaura by lacking basal spines on the hemipenes, from Teuchocercus by lacking conical scales on the tail, and from Potamites (character states for Potamites in parentheses) by having a strongly compressed tail (slightly compressed), ventral scales imbricate (subimbricate ventral scales), and hemipenes lacking calcareous spinules on flounces (calcareous spinules on hemipenes) (after DOAN & CASTOE 2005). Additional details (2310 characters) are available for collaborators and contributors. Please contact us for details. |
Comment | Synonymy: Lacerta bicarinata LINNAEUS 1758 has been confused with Tupinambis lacertinus in the older literature. See entry for Crocodilurus lacertinus for more details. Type Species: Lacerta bicarinata LINNAEUS 1758 is the type species of the genus Neusticurus DUMÉRIL & BIBRON 1839. Distribution: Probably also in Bolivia (fide LANGSTROTH 2005). |
Etymology | Named after Latin (prefix) bi, two, double, that has two + Latin carinatus, keel. (Esteban Lavilla, pers. comm., April 2024) The genus was named after Greek neustikos (νευστικός), able to swim + Greek oura (οὐρᾷ), tail. |
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