Black-tailed Rattlesnake
The black-tailed rattlesnake (''Crotalus molossus'') is a venomous pit viper species found in the southwestern United States and Mexico. Four subspecies are currently recognized, including the nominate subspecies described here. Taxonomy A recent revision showed that eastern populations from Texas and central and eastern New Mexico form a distinct species separate from ''C. molossus'': ''Crotalus ornatus'' Hallowell 1854. Alternate common names are green rattler,Campbell JA, Lamar WW. 2004. The Venomous Reptiles of the Western Hemisphere. Comstock Publishing Associates, Ithaca and London. 870 pp. 1500 plates. . and Northern black-tailed rattlesnake. Wright AH, Wright AA. 1957. ''Handbook of Snakes of the United States and Canada''. Comstock Publishing Associates. Ithaca and London. (7th printing, 1985). 1105 pp. . Subspecies Description This medium-sized species averages from in length. Conant R. 1975. ''A Field Guide to Reptiles and Amphibians of Eastern and Central Nort ...
[...More Info...]       [...Related Items...]     OR:     [Wikipedia]   [Google]   [Baidu]  

Spencer Fullerton Baird
Spencer Fullerton Baird (; February 3, 1823 – Augus