CROCODILIANS, LIZARDS, AND SNAKES. 



1169 



specimens of the C. c. lucifer. It is in the dorsal coloration that the 

 C. ruber resembles the G. c. lucifer, but the broad, ill-delined postociilar 

 band not passinj*' beyond the canthns of the mouth and the white tail 

 with black rings easily di^stinguish it from the common form of the 

 Pacific coast. 



This is a large species; besides Cat. No. 0201) above measured. Cat. 

 No. 20381 measures 1,400 mm. and Cat. No. 192G!); 1,130 mm. 



Dr. iStejueger remarks' that tlie characters by which I originally 

 defined this form --do not seem to hold in a larger series." I find on 

 examining the same material that the characters are fully substantiated. 



The habitat of tlie C. ruber ia southern California as far north as San 

 Francisco. Mr. Van Deuburgli reports a head from Ensenada, in the 

 adjacent part of Lower California, but as he remarks that the only 

 peculiarity it presents is that of color the identification may be for the 

 present regarded as doubtful. 



In young specimens the color markings are better defined. This is 

 the case with Cat. No. 8850, where the dorsal spots are rhombic on the 

 posterior three-quarters of the body, and are parallelogrammic on the 

 anterior fourth, and the pale lateral borders are very faintly indicated. 

 Details as follows : 



Cat. No. 8856 ; rows of scales, 29 ; upper labials, 15 ; gastrosteges, 194 ; uroateges, 21 ; 

 total length, 600 mm. ; length of tail, 52 mm. ; rattle, 22 mm. 



Crotalus ^•uber Cope. 



CROTALUS CONFLUENTUS Say. 



Crotalus conjlnentas Say, Long's Exped. Rocky Mountains, II, 1823, p. 48. — 

 Cope, Check-list N. Amer. Batr. Rept., 1875, p. 33. — Coces, Report U. S. 

 Geog. Survey W. of 100th Mer., V, p. 604; Proc. U. S.Nat. Mns., XV, 1892, 

 p. 691.— BouLENGER, part, Cat. Snakes Brit. Mus., 111,1896, p. 576. — Cope, 

 Proc. Acad. Nat. Sci. Phila., 1883, p. 11.— Stejnegek, Rept. U. S. Nat. Mus. 

 for 1893, 1895, p. 440, pi. xii. 



Top of muzzle with smaller scales between larger ones of the canthus 

 rostralis. Kostral plate elevated, in contact with the ])rcn;isal. One 

 or two loreals; three or four rows between eye and labial scales. J»ody 



' Report U. S. Nat. Mus for 1893, 1895, p. 440. 

 NAT MUS 98 74 



