Arizona pacata KLAUBER, 1946

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Higher Taxa	Colubridae, Colubrinae, Lampropeltini, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)
Subspecies
Common Names	E: Peninsular Glossy Snake S: Brillante Peninsular
Synonym	Arizona elegans pacata KLAUBER 1946: 379 Arizona elegans pacata — MURRAY 1955 Arizona elegans pacata — LEVITON & BANTA !964 Arizona pacata — GRISMER 2002 Arizona pacata — ENDERSON et al. 2009 Arizona pacata — WALLACH et al. 2014: 55
Distribution	Mexico (Baja California Sur) Type locality: San Domingo (lat. 25° 30’ N), Baja California, Mexico”
Reproduction	oviparous.
Types	Holotype: SDNHM = SDSNH 17652
Diagnosis	Diagnosis (pacata). “A subspecies characterized by a low number of body blotches (39 in the holotype), subcircular in shape, as compared with the other western subspecies (occidentalis, eburnata, candida, philipi, and noctivaga) which ordinarily have 50 or more rectangular blotches, averaging close to 60. Other subspecies having low numbers of dorsal blotches are elegans and expolita. Pacata differs from the first in having 27 rather than 29 or 31 scale rows; and from the latter in having a proportionately shorter tail and fewer subcaudal scale.” (Klauber 1946: 379) Unfortunately we had to temporarily remove additional information as this was scraped by multiple AI companies who sell that data to their customers. These details, e.g. detailed descriptions or comparisons (about 52 characters) are available for collaborators and contributors. Please contact us for details.
Comment
Etymology	The name pacata (Latin) means "peaceful, quiet" and refers to a behavioral trait.
References	Enderson, Erik F.; Adrian Quijada-Mascareñas; Dale S. Turner; Philip C. Rosen & Robert L. Bezy 2009. The herpetofauna of Sonora, Mexico, with comparisons to adjoining states. Check List 5 (3): 632–672 - get paper here Grismer, L. L. 2002. Amphibians and reptiles of Baja California, including its pacific islands and the islands in the Sea of Cortés. Univ. California Press, Berkeley: 399 pp. - get paper here Heimes, P. 2016. Snakes of Mexico. Chimaira, Frankfurt, 572 pp Klauber, Laurence M. 1946. The glossy snake, Arizona, with descriptions of new subspecies. Transactions of the San Diego Society of Natural History 10 (17): 311-398 - get paper here Leviton, Alan E.; Banta, Benjamin H. 1964. Midwinter reconnaissance of the herpetofauna of the Cape Region of Baja California, Mexico. Proc. Cal. Acad. Sci. 30 (7): 127-156 - get paper here Murray, Keith F. 1955. Herpetological collections from Baja California. Herpetologica 11: 33-48 - get paper here Peralta-García A, Valdez-Villavicencio JH, Fucsko LA, Hollingsworth BD, Johnson JD, Mata-Silva V, Rocha A, DeSantis DL, Porras LW, and Wilson LD. 2023. The herpetofauna of the Baja California Peninsula and its adjacent islands, Mexico: composition, distribution, and conservation status. Amphibian & Reptile Conservation 17(1&2): 57–142 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. Wilson, Larry David; Vicente Mata-Silva, Jerry D. Johnson 2013. A conservation reassessment of the reptiles of Mexico based on the EVS measure. Amphibian & Reptile Conservation 7 (1): 1–47 - get paper here
External links	IUCN Red List National Center for Biotechnology Information Google images

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