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标题：A new species of Riama from Ecuador previously referred to as Riama hyposticta (Boulenger, 1902) (Squamata, Gymnophthalmidae). (American Museum novitates, no. 3719)
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作者：Sánchez-Pacheco, Santiago J. ; Kizirian, David. ; Nunes, Pedro M. Sales. 等
期刊名称：American Museum Novitates
印刷版ISSN：0003-0082
电子版ISSN：1937-352X
出版年度：2011
卷号：2011
语种：
出版社：American Museum of Natural History
摘要：We describe Riama crypta, new species, from the western slopes of the Cordillera Occidental, Ecuador. This taxon was formerly referred to as Riama hyposticta, a rare species described on the basis of an adult male from northern Ecuador and here recorded from southwestern Colombia. The new species differs principally from Riama hyposticta by an incomplete superciliary series, formed just by the anteriormost superciliary scale (superciliary series complete in R. hyposticta, formed by five or six scales), no nasoloreal suture (= loreal absent) (complete (= loreal present) in R. hyposticta), distinct dorsolateral stripes at least anteriorly (scattered brown spots dorsally without dorsolateral stripes in R. hyposticta), and ventral coloration composed of small cream or brown spots or longitudinal stripes (dark brown with conspicuous transverse white bars and spots). Additionally, we document the presence of distal filiform appendages on the hemipenial lobes of both species.
关键词：Riama crypta.; Lizards.; Gymnophthalmidae.; Ecuador.; Cotopaxi (Ecuador)