Amphisbaena cuiabana (STRUSSMAN & CARVALHO, 2001)
Can you confirm these amateur observations of Amphisbaena cuiabana?
|Higher Taxa||Amphisbaenidae, Amphisbaenia, Lacertoidea, Squamata|
|Common Names||Portuguese: Cobra-de-Duas-Cabeças-de-Cuiabá|
|Synonym||Cercolophia cuiabana STRUSSMAN & CARVALHO 2001|
Cercolophia cuiabana — GANS 2005: 26
Amphisbaena cuiabana — MOTT & VIEITES 2009
|Distribution||W Brazil (Mato Grosso)|
Type locality: Brazil, Mato Grosso, Cuiaba´ (15°36’S, 56°06’W).
|Types||Holotype: ZUEC 2083. Paratypes: ZUEC 2084–2091.|
|Diagnosis||Strüssmann and Carvalho (2001) considered as diagnostic characters for A. cuiabana the presence of four precloacal pores and the highest number of body annuli (286-292) among its congeners. In fact, A. cuiabana only has fewer body annuli than A. supernumeraria (333-337), a northeast Brazilian species of amphisbaenid recently described (Mott et al. 2009). Authors when describing A. cuiabana mentioned the presence of a constriction site on 9th or 10th tail annuli, and they speculate the possibility of tail autotomy in this species, although they could not find any specimen with autotomized tail. With the additional specimens described by Silva et al. 2016, the range of the number of body annuli for A. cuiabana, changes from 282-286 to 278-309, and the tail annuli from 17-20 to 18-20 (with an autotomic site on annulus 8th). The largest specimen known for the species is 316 mm snout-vent length, and it seems that male has longer tails than female. The nasorostral scale is fused with nasals in some specimens (47 %), but not in all (53 %) as previously noticed by Strüssmann and Carvalho (2001).|
|Comment||Morphology: This species is one of ~20 species of Amphisbaena with two precloacal pores (Ribeiro et al. 2019).|
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