Amphisbaena vanzolinii GANS, 1963
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Higher Taxa | Amphisbaenidae, Amphisbaenia, Lacertoidea, Squamata (lizards) |
Subspecies | |
Common Names | E: Vanzolini's Worm Lizard Portuguese: Cobra-de-Duas-Cabeças, Cobra-Cega |
Synonym | Amphisbaena vanzolinii GANS 1963 Amphisbaena vanzolinii — GONZALEZ-SPONGA & GANS 1971 Amphisbaena vanzolinii— HOOGMOED & AVILA-PIRES 1991 Amphisbaena hugoi VANZOLINI 1989 (fide HOOGMOED & MOTT 2003) Amphisbaena hugoi — VANZOLINI 2002 Amphisbaena vanzolinii — GANS 2005: 20 Amphisbaena vanzolinii — MORATO et al. 2014: 63 |
Distribution | Guyana (Rupununi District), Suriname (Sipaliwini), N Brazil (Amazonas, Pará) hugoi: Brazil (Amazonas, from the area of Balbina, northeast of Manaus). Type locality: Guyana; Marudi (02°05’N, 59°00’W). |
Reproduction | oviparous |
Types | Holotype: AMNH 60975; paratype: AMNH 60778 Holotype: MZUSP 68644 [hugoi] |
Diagnosis | DIAGNOSIS: A form of Amphisbaena without major fusions of head shields; with the nasals the largest segments of the head and divided from the frontals by a peculiar V-shaped suture; without enlarged malars; with two supralabials and one and a halfinfralabials. The form has 225 to 228 body annuli; apparently more than 15 caudal annuli (the tail is broken in both types); no caudal autotomy constriction; 12 to 13 dorsal and 16 to 17 ventral segments to a midbody annulus; and four round precloacal pores. The color of preserved specimens is a uniform dark brown dorsally, fading to a lighter ventral coloring. The tendency toward darkening of the rectangular segmental centers is only faintly apparent under the microscope (Gans 1963: 13). The belly of Surinam A. vanzolinii is white and the back light- to dark-brown, exactly the same as in A. hugoi. All meristic and other characters mentioned by Vanzolini (1990, 2002) for A. hugoi completely fall within the range of variation known for A. vanzolinii. |
Comment | Distribution: map in HOOGMOED & AVILA-PIRES 1991. |
Etymology | The specific name is a homage to Dr. Paulo Emílio Vanzolini (1924-2013), one of the most distinguished Brazilian zoologists. About Vanzolini see Heyer (2004), Bastos & Sa 2011, and Dirksen 2013. |
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