Proctoporus xestus (UZZELL, 1969)
Can you confirm these amateur observations of Proctoporus xestus?
|Higher Taxa||Gymnophthalmidae (Cercosaurinae), Sauria, Gymnophthalmoidea, Squamata (lizards)|
|Common Names||River Teiid|
|Synonym||Opipeuter xestus UZZELL 1969|
Opipeuter xestus — CEI 1993
Opipeuter xestus — DIRKSEN & DE LA RIVA 1999
Proctoporus xestus — GOICOECHEA et al. 2013
|Distribution||Bolivia (Chuquisaca, Cochabamba, Santa Cruz), Argentina (Jujuy, Salta), Peru|
Type locality: Incachaca, Cochabamba, Bolivia, 2200 m elevation
|Types||Holotype: UMMZ 128835|
|Comment||Type species: Opipeuter xestus UZZELL 1969 is the type species of the genus Opipeuter UZZELL 1969. Opipeuter has been synonymized with Proctoporus by Goicoechea et al. 2013.|
Proctoporus and Opipeuter have been distinguished by the presence of prefrontal scales in Opipeuter and absence in Proctoporus, but this character has been demon- strated to be highly variable within members of the family Gymno- phthalmidae (Köhler and Lehr, 2004). Indeed, prefrontal scales are present in both O. xestus and the two species of Euspondylus that are nested within Proctoporus in our analyses, proving the highly homoplastic condition of this character state. Proctoporus species and O. xestus also share the condition of a transparent disc in the lower eyelid, a character that nonetheless appears in Potamites and other Gymnophtalmids (Doan and Castoe, 2005), being thus either homoplastic or symplesiomorphic.