Riama unicolor GRAY, 1858
Can you confirm these amateur observations of Riama unicolor?
|Higher Taxa||Gymnophthalmidae (Cercosaurinae), Sauria, Gymnophthalmoidea, Squamata (lizards)|
|Common Names||E: Drab Lightbulb Lizard|
S: Lagartija minadora de vientre rojo
|Synonym||Riama unicolor GRAY 1858: 443|
Ecpleopus (Oreosaurus) Petersi BOETTGER 1878: 9
Proctoporus unicolor — BOULENGER 1882: 459
Proctoporus unicolor — BOULENGER 1885: 413
Proctoporus lividus THOMINOT 1889: 25
Proctoporus unicolor — PETERS & DONOSO-BARROS 1970: 240
Proctoporus unicolor — DOAN & SCHARGEL 2003
Riama unicolor — DOAN & CASTOE 2005
|Distribution||N Ecuador (elevation 8500-9000 feet = 2390–3300 m)|
Type locality: Ecuador Map legend:
- Region according to the TDWG standard, not a precise distribution map.
NOTE: TDWG regions are generated automatically from the text in the distribution field and not in every cases it works well. We are working on it.
|Types||Holotype: BMNH 1918.104.22.168|
|Comment||Terra typica fide BOETTGER 1878: Pará, Brazil (considered to be erroneous by BURT & BURT 1933).|
Type Species: Riama unicolor GRAY 1858 is the type species of the genus Riama GRAY 1858.
Definition of the genus Riama: Tongue with imbricate, scalelike papillae. Head scales smooth without striations or rugosities: single frontonasal, frontal, and interparietal; paired frontoparietals and parietals; prefrontals absent; nostril pierced in a single nasal; nasals not in contact. Eyelids developed, lower with a translucent disc divided into several scales. Posterior gulars squarish. Limbs pentadactyl; digits clawed. Dorsal scales quadrangular or hexagonal, elongate, smooth, striate, rugose, or keeled, juxtaposed, forming transverse series only. Ventrals large, smooth, quadrangular, juxtaposed, forming regular longitudinal and transverse series. Femoral pores usually present in males and females; preanal pores present or absent in males or females. Tail cylindrical. After DOAN & CASTOE 2005.
Diagnosis of the genus Riama: Riama differs from members of Alopoglos-sinae 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 Ecpelopinae by lacking prefrontal scales. Within Cercosaurinae (sensu Castoe et al., 2004), Riama differs from all genera except Pholidobolus, Proctoporus, and Petracola by lacking prefrontal scales. It differs from Proctoporus by having a divided palpebral disc, from Pholidobolus by lacking two medial rows of widened gulars, and from Petracola by lacking the combination of smooth dorsal scales and femoral pores per hind limb in both sexes less than six (exclusive of preanal pores). After DOAN & CASTOE 2005.
|Etymology||The specific epithet, unicolor, is an adjective from the Latin that probably refers to the nearly unicolored dorsal and ventral color patterns of the holotype.|
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