Rhadinella posadasi (SLEVIN, 1936)
Can you confirm these amateur observations of Rhadinella posadasi?
Rhadinella posadasi
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| Higher Taxa | Colubridae (Dipsadinae), Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes) |
| Subspecies | |
| Common Names | E: Posada's Graceful Brown Snake S: Hojarasquera de Posada |
| Synonym | Trimetopon posadasi SLEVIN 1936: 79 Trimetopon posadasi — STUART 1963 Trimetopon posadasi — PETERS & OREJAS-MIRANDA 1970: 309 Rhadinaea posadasi — MYERS 1974: 147 Rhadinaea posadasi — VILLA et al. 1988 Rhadinaea posadai [sic] — LINER 1994 Rhadinaea posadasi — LINER 2007 Rhadinella posadasi — MYERS 2011 Rhadinella posadasi — WALLACH et al. 2014: 644 |
| Distribution | SE Mexico (Chiapas), Guatemala Type locality: south slope of volcano Zunil, Suchitepequez, Guatemala |
| Reproduction | oviparous |
| Types | Holotype: CAS 66964, adult male |
| Diagnosis | Diagnosis: This species is close to Rhadinaea pilonaorum (g.v.), but in posadasi the head is dark brown (rather than whitish with brown mottling), the pale dashes on the body scales are less conspicuous, there are fewer ventrals, and the body is relatively less slender. The two species are readily separated by head color alone, if the small number of specimens is representative. The color pattern is close to R. schistosa (g.u.) of Mexico, but posadasi has a much longer tail and fewer maxillary teeth. (Myers 1974: 147) Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data. However, these details, e.g. detailed descriptions (about about 1.49 pages) are available for collaborators and contributors. Please contact us if you need any of this material. |
| Comment | Distribution: see map in ARIANO-SÁNCHEZ & CAMPBELL 2018: 342 (Fig. 3). Similar species: R. pilonaorum; these two species occur in the same volcanic belt but the nearest known localities are more than 100 kilometers apart. A record of "posadasi" from El Salvador (Mertens, 1952: 76; Rand, 1957) is based on a specimen of pilonaorum (Myers 1974). |
| Etymology | Named after Juan Zenon Posadas, who had a coffee plantation on the slopes of Volcan Zunil (Guatemala). Slevin was his guest there and collected reptiles and amphibians in the area. |
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