Amphisbaena littoralis ROBERTO, BRITO & ÁVILA, 2014
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|Higher Taxa||Amphisbaenidae, Amphisbaenia, Lacertoidea, Squamata (lizards)|
|Common Names||Portuguese: Cobra-de-Duas-Cabeças, Cobra-Cega|
|Synonym||Amphisbaena littoralis ROBERTO, BRITO & ÁVILA 2014|
|Distribution||Brazil (Rio Grande do Norte)|
Type locality: 8.5 km in straight line to the downtown of Guamaré municipality, state of Rio Grande do Norte (05°07’31.5’’S, 36°23’00.8’’W), Guamaré municipality, state of Rio Grande do Norte, Brazil
|Types||Holotype: URCA-H 3540, an adult female collected by Igor J. Roberto on May 27 of 2011, (Figure 1–3A). Paratypes. Four adult males (URCA-H 3541-3542, 3544, 3552), two adult females (URCA-H 3543, 3551) and six undetermined sex (URCA-H 3545-3550), all collected from June 9th to June 25th, by Lucas B. M. Brito between 05°08' 30.9'' S/ 36°25' 05.0''W, municipality of Guamaré and 05°10'31.3'' S, 36°28'57.8''W, municipality of Macau, state of Rio Grande do Norte, Brazil.|
|Diagnosis||Diagnosis. The new species is diagnosable by snout-vent length 248.8 ± 10.9 mm SVL in males and 257.3 ± 24 mm SVL in females, six precloacal pores, 252–264 body annuli, 20–22 dorsal and 21–24 ventral segments to the midbody annulus (Table 1). Nasals in broad contact at midline, without fusion of head scales. Three supralabials, third one larger; three infralabials, second the largest. Suture between frontals two times larger than the parietal and nasal sutures. Lateral sulci present, starting on 42th segment, no dorsal or ventral sulci. Tail long with length maximum 70mm and cylindrical, 30–34 tail annuli with autotomy on the 6th tail annuli, rounded tip of the tail.|
Sales et al. (2019) redefined some diagnostic characters of A. littoralis: snout–vent length 143–278 mm; tail length 19.3–70 mm; body annuli 251–270; tail annuli 29–34; dorsal and ventral segments of midbody annulus 19–22 and 20–24, respectively; precloacal pores 5–6 (usually 6); and supralabials 3–4 (usually 4).
|Etymology||The specific epithet littoralis, a noun in apposition, means in Latin inhabitant of coastal area, referring to the presence of the species in coastal sand dunes.|
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