Lake Superior: its physical character, vegetation, and animals, compared with those of other and similar regions. Army surgeon who collected the type specimen. The name tergeminus is Latin meaning threefold or triple and probably refers to the triple row of prominent spots seen in many western specimens. 2016 (who consider tergeminus as part of catenatus). See Niehoff 2013, Terraria Elaphe 2014: (1): 12.ĭistribution: Not in Nuevo León fide Nevárez-de los Reyes et al. Juvenile tergeminus have a yellow tail tip. Illustration: The animal shown in Roggenkamp (2013) is not a Sistrurus catenatus edwardsi but Sistrurus catenatus tergeminus. However, they do not explicitly propose a name for this clade although tergeminus would have priority.
EDWARD SIU FULL
catenatus to full species status with another clade formed by edwardsii and tergeminus. The ICZN has ruled that tergeminus and catenatus be conserved. (2008) are preparing an appeal to the International Commission of Zoological Nomenclature (ICZN) to allow a neotype of Sistrurus catenatus to be designated from the type locality of Crotalus massassaugus (from HOLYCROSS et al. To conserve prevailing usage, HOLYCROSS et al. tergeminus, which in turn renders the latter as a subjective junior synonym of the former, leaving the eastern form with an unfamiliar name (Crotalus messasaugus Kirtland, 1838). catenatus incontrovertibly applies to the form currently recognized as S. catenatus places it within the range of S. did not explicitly synonymize them though. tergeminus rather than discrete taxonomic entities”. edwardsii populations were genetically indistinguishable, and thus “most likely represent polytypic phenotypes of S.
EDWARD SIU SERIES
Blotches in median series number 27-41 belly white or cream, unmarked or with sparse dark flecks. Usually 23 scale rows at midbody, ventrals 137-152, caudals in males 28-36, females 24-29. Total length of average adults is 46-66 cm. Blotches in median series number 33-49 belly white or cream with dark lateral blotches. Scale rows at midbody usually number 25, ventral 138-160, caudals in males 27-34, females 21-28. Lectotype: USNM 509, according to designation by Yarrow (1882:78) selected from syntypes USNM 506 (Sonora), USNM 507 (Tamaulipas), USNM 508 (Texas ), and USNM 509 (Mexico ) Minton (1983b:332.2) listed USNM 507 as the "holotype." ĭEFINITION. 2012 originally USNM 86472 was proposed as neotype (ICZN Case 3571) (tergeminus) Neotype: DU 3917 (Drake University), designated by Crother et al. Tergeminus: USA (Texas, Oklahoma), Mexico (C Coahuila, S Nuevo León possibly in Tamaulipas, N Chihuahua) Type locality: "between the Mississippi River and the Rocky Mountains."Įdwardsi: USA (W Texas, New Mexico, SE Arizona), N Mexico Type locality: "Tamaulipas. Sistrurus tergeminus edwardsii - POWELL et al. Sistrurus tergeminus tergeminus - POWELL et al. Sistrurus tergeminus tergeminus - ICZN 2013
Sistrurus tergeminus edwardsii - ICZN 2013 Sistrurus catenatus edwardsii - CROTHER et al. Sistrurus catenatus tergeminus - CROTHER et al. Sistrurus catenatus tergeminus - TENNANT & BARTLETT 2000: 507 Sistrurus catenatus tergeminus - CROTHER 2000 Sistrurus catenatus edwardsii - TENNANT & BARTLETT 2000: 510 Sistrurus catenatus edwardsii - CROTHER 2000
Sistrurus catenatus edwardsii - WELCH 1994: 109 Sistrurus catenatus tergeminus - CONANT & COLLINS 1991: 232 Sistrurus catenatus edwardsii - STEBBINS 1985: 226 Sistrurus catenatus edwardsii - GLOYD 1955 Sistrurus catenatus tergeminus - KLAUBER 1936 Viperidae, Crotalinae, Colubroidea, Caenophidia, Alethinophidia, Serpentes, Squamata (snakes)Į: Western Massasauga, Prairie Massasauga Ĭrotophorus tergeminus - AGASSIZ 1850: 380Ĭrotalophorus tergeminus - BAIRD & GIRARD 1853Ĭrotalophorus Edwardsii BAIRD & GIRARD 1853: 15Ĭrotalus tergeminus - DUMÉRIL & BIBRON 1854: 1479 Find more photos by Google images search:
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