Borikenophis variegatus (SCHMIDT, 1926)

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Higher Taxa	Colubridae (Dipsadinae), Alsophiini, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Mona Racer, Puerto Rican Racer
Synonym	Dromicus variegatus SCHMIDT 1926: 160 Alsophis variegatus — GRANT 1932 Alsophis portoricensis variegatus — SCHWARTZ & HENDERSON 1991: 574 Borikenophis variegatus — HEDGES et al. 2009 Borikenophis variegatus — WALLACH et al. 2014: 109
Distribution	Puerto Rico (Isla Mona, Isla Desecheo?) Type locality: Isla Mona
Reproduction	oviparous (not imputed, fide Zimin et al. 2022)
Types	Holotype: FMNH 266
Diagnosis	Diagnosis: Allied to Dromicus portoricensis in scale characters, and distinguished chiefly by its coloration, in which the regular reticulation of black of the dorsal scales and the black borders of the ventrals are absent. (Schmidt 1926)
Comment
References	Grant, C. 1932. The genus Alsophis in the Puerto Rico area,. J. Dept. Agric. Puerto Rico 16: 149-151 Hedges, S. Blair; Arnaud Couloux; Vidal, Nicolas 2009. Molecular phylogeny, classification, and biogeography of West Indian racer snakes of the Tribe Alsophiini (Squamata, Dipsadidae, Xenodontinae). Zootaxa 2067: 1-28 - get paper here KRYSKO, KENNETH L.; DAVID W. STEADMAN, LEROY P. NUÑEZ & DAVID S. LEE 2015. Molecular phylogeny of Caribbean dipsadid (Xenodontinae: Alsophiini) snakes, including identification of the first record from the Cay Sal Bank, The Bahamas. Zootaxa 4028 (3): 441–450 - get paper here Schmidt, K. P. 1926. The amphibians and reptiles of Mona Island, West Indies. Field Mus. Nat. Hist. Ser. Zool. 12:149-163. - 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. 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
External links	IUCN Red List National Center for Biotechnology Information https://www.facebook.com/groups/stshc/posts/401574142067190/ Google images

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