Pseudalsophis occidentalis (VAN DENBURGH, 1912)
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Higher Taxa | Colubridae (Dipsadinae), Alsophiini, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
Subspecies | |
Common Names | |
Synonym | Dromicus occidentalis VAN DENBURGH 1912: 347 Dromicus occidentalis helleri VAN DENBURGH 1912: 349 Dromicus dorsalis occidentalis — MERTENS 1960: 139 Dromicus dorsalis helleri — MERTENS 1960: 138 Alsophis biserialis occidentalis — THOMAS 1997: 36 Alsophis dorsalis occidentalis — SWASH & STILL 2000 Alsophis dorsalis helleri — SWASH & STILL 2000 Pseudalsophis occidentalis — ZAHER et al. 2009 Pseudalsophis occidentalis — WALLACH et al. 2014: 595 |
Distribution | Ecuador (Galapagos Islands: Fernandina, Isabela, Tortuga) Type locality: “Narborough Island, Galapagos Archipelago” [= Fernandina Island, Galapagos Islands, Ecuador]. |
Reproduction | |
Types | Holotype: CAS 11488 (occidentalis) Holotype: CAS 10280 [helleri] |
Diagnosis | Diagnosis [helleri]: Scale-pits present, scales in 19 rows; gastrosteges more than 236; postoculars two; temporals 1+2 or 2+2, spotted, no longitudinal light stripes; no series of definite rounded blackish spots on lateral scales of first and second rows; light nuchal markings much less prominent, and dark spots on tips of gastrosteges absent or less distinct than in the Narborough form [from VAN DENBURGH 1912]. |
Comment | Synonymy: after Wallach et al. 2014. |
Etymology | The specific name occidentalis (Latin) refers to the western distribution of this species. |
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