. The reptiles of western North America, an account of the species known to inhabit California and Oregon, Washington, Idaho, Utah, Nevada, Arizona, British Columbia, Sonora and Lower California. n labials and eye. Scales in 21to 25 rows, dorsals strongly keeled. Gastrosteges varyingat least from 165 to 183. Urosteges 18 to 26. The ground color is yellowish ash, varying from whitishto tawny, marked along the back with a series of rather smalland indistinct brown blotches which become cross-bars orstripes posteriorly, and number about 31 to 37 on the bodyand three to six on the tail. These blot
. The reptiles of western North America, an account of the species known to inhabit California and Oregon, Washington, Idaho, Utah, Nevada, Arizona, British Columbia, Sonora and Lower California. n labials and eye. Scales in 21to 25 rows, dorsals strongly keeled. Gastrosteges varyingat least from 165 to 183. Urosteges 18 to 26. The ground color is yellowish ash, varying from whitishto tawny, marked along the back with a series of rather smalland indistinct brown blotches which become cross-bars orstripes posteriorly, and number about 31 to 37 on the bodyand three to six on the tail. These blotches are paler centrallythan about their edges, and sometimes are nearly alternating blotches are present on the sides. Thehead markings are rather indistinct, especially the postocularstripe, which is often lost in the dense sprinkling of minuteblack dots covering the sides of the head. The lower sur-faces are yellow or white, sometimes faintly clouded withbrown. Length to anus _- 515 582 625 688 708 750 Length of to 3 5 +3 46 48 56 58 Distribution.—The Tiger Rattlesnake was formerly Oc. Iapkks, AiM). Sci., \<ii,. X I Van l)i:\iii!R(.ii | 1 15. ?3 i. ; u .^^ 4-8. CROTALUS 94-9 only known from a few localities in southern Arizona nearthe Mexican boundary, until in 1891 the Death Valley ex-ploration under Dr. Merriam extended its range very materi-ally into the desert mountains of southern California andNevada south of the thirty-seventh parallel, from OwensValley to the great bend of the Colorado. The vertical rangeis at least 2,000 to 8,000 feet above sea-level. Some of thelocalities at which this snake has been taken are: Rocky Creek,Independence Creek, Lone Pine, Owens Valley, Coso Valley,Argus Range, Panamint IMountains, Slate Range, Wild RoseSprings, Beveridge Canyon in the Inyo Mountains, all inInyo County; Round Valley in Mono County; and 20 milesabove Picacho, Colorado River, Imperial County; Califor-nia; Vegas Valley, Vegas
Size: 1089px × 2294px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, booksubject, booksubjectserpents
