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Myersophis alpestris TAYLOR, 1963

IUCN Red List - Myersophis alpestris - Data Deficient, DD
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Higher TaxaCyclocoridae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies 
Common NamesE: Myers’ Mountain Snake 
SynonymMyersophis alpestris TAYLOR 1963: 430
Myersophis alpetris — BROWN & ALCALA 1970: 114
Myersophis alpestris — WALLACH et al. 2014: 462
Myersophis alpestris — WEINELL et al. 2020 
DistributionPhilippines (Luzon)

Type locality: elevation circa 1980 m in mountains near Banaue, Mountain Province, Luzon, Philippines.  
Reproductionoviparous (not imputed, fide Zimin et al. 2022) 
TypesHolotype: lost, given as EHT-HMS 3109 (private collection of E.H. Taylor and H. M. Smith), lost fide Leviton (1983: 212) 
DiagnosisDiagnosis (genus). Maxillary teeth 14 to 15, strong, elongate, bending somewhat backwards at their bases, smaller at anterior and posterior ends of the series; rostral about one and one-half times as wide as high; nasal very small, equal to or a little smaller than first supralabial; internasals much broader than long, touching second labial behind nasal; prefrontal separated from orbit by contact of supraocular with loreal; prefrontals not twice size of internasals; no primary temporals; fifth supralabial bordering parietal; eye very small with round pupil; one postocular; first infralabials small, widely separated; large anterior chin shields, a small second pair. Scale rows 15 throughout body; tail very short, about one eleventh of body length (9) . The relationship of this genus is uncertain. It agrees with Xylophis and Oxyrhabdium, two Oriental genera, in having very large anterior chin shields with few labial scales, but here the essential similarities cease. A species of Oxyrhabdium occurs in the same general area.” (Taylor 1963) 
CommentType species: Myersophis alpestris TAYLOR 1963: 430 is the type species of the genus Myersophis TAYLOR 1963. 
EtymologyThe species is obviously named after the high elevation of the type locality where it was found.

The genus was named in honor of Dr. George S. Myers, herpetologist and ichthyologist, of Stanford University. 
References
  • Brown, Walter C.; Alcala, Angel C. 1970. The zoogeography of the herpetofauna of the Philippine Islands, a fringing archipelago. Proc. Cal. Acad. Sci. 38 (6): 105-130 - get paper here
  • Gojo-Cruz, Paul Henric P. and Leticia E. Afuang 2018. The Zoogeographic Significance of Caraballo Mountain Range, Luzon Island, Philippines With Focus on the Biogeography of Luzon’s Herpetofauna. Philippine Journal of Science 147 (3): 393-409 - get paper here
  • Leviton, Alan E.; Cameron D. Siler, Jeffrey L. Weinell, and Rafe M. Brown 2018. Synopsis of the Snakes of the Philippines. Proc. Cal. Acad. Sci. 64 (14): 399-568 - get paper here
  • Taylor, Edward H. 1963. New and rare oriental serpents. Copeia 1963 (2): 429-433 - get paper here
  • Wallach, Van; Kenneth L. Williams , Jeff Boundy 2014. Snakes of the World: A Catalogue of Living and Extinct Species. [type catalogue] Taylor and Francis, CRC Press, 1237 pp.
  • Weinell, J L; Paluh, D J; Singh, A L; Blackburn, D C & Brown, R M; 2019. Myersophis alpestris (Myers’ Mountain Snake) Reproduction. Herpetological Review 50 (1): 164-165 - get paper here
  • Weinell, J. L., & Brown, R. M. 2017. Discovery of an old, archipelago-wide, endemic radiation of Philippine snakes. Molecular Phylogenetics and Evolution, 119: 144–150 [2018] - get paper here
  • Weinell, Jeffrey L.; Daniel J. Paluh, Cameron D. Siler, Rafe M. Brown 2020. A New, Miniaturized Genus and Species of Snake (Cyclocoridae) from the Philippines. Copeia 108 (4): 907-923 - get paper here
  • Weinell, Jeffrey L.; Errol Hooper, Alan E. Leviton, Rafe M. Brown 2019. Illustrated Key to the Snakes of the Philippines. Proc. Cal. Acad. Sci. (4) 66 (1): 1-49 - get paper here
  • Zimin, A., Zimin, S. V., Shine, R., Avila, L., Bauer, A., Böhm, M., Brown, R., Barki, G., de Oliveira Caetano, G. H., Castro Herrera, F., Chapple, D. G., Chirio, L., Colli, G. R., Doan, T. M., Glaw, F., Grismer, L. L., Itescu, Y., Kraus, F., LeBreton 2022. A global analysis of viviparity in squamates highlights its prevalence in cold climates. Global Ecology and Biogeography, 00, 1–16 - get paper here
 
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