CROCODILIANS, LIZARDS, AND SNAKES. 



829 



keels on any of tlie dorsal series of scales, and in one of C. emoryi a 

 few dorsal rows have faint traces of keels. In a specimen of G. ohso- 

 h'tus (Cat. No. 5503) there are but sixty urosteges, the smallest number 

 known in any other individual being seventy-four. This is abnormal. 

 The young of the C. quadririttatus are strongly spotted, and closely 

 resemble the G. spilokJcs, as is also the case with the young of the G. 

 guttatuH. In the young of ' 0. emory/ there are seldom more than two 

 scuta in the first row of temporals, the division into three being accom- 

 plished at a later stage 

 of growth. The general 

 result of these facts is 

 that the G. spiloides is 

 the primitive type from 

 which the other species 

 have been derived, some 

 by one modification, 

 some by another. 



Giinther retained the 

 Linna^an name Goluher 

 for this genus, as he 

 was compelled to do in 

 view of the use of it by 

 his predecessors Boie g 



and Fleming. ? § 



s i. ! 

 COLUBER CONFINIS p |- * 



en *Ti 



Baird and Girard. z r- 



Coluber conjinis C o i- k , 



Proc. U. S. Nat. Mus., 



XV, 1892, p. 631, 2. 

 Coluber Iwtus Boulenger, 



Cat. Snakes Brit. Mus., 



II, 1894, p. 49. 

 Scopophis confinis Baird 



and Girard, Cat. N. 



Amer. Kept., 1853, p. 76. 



Head short, wide, muz- 

 zle narrow. Rostral 

 plate narrow, slightly 

 prejecting, little visible 

 from above. Interna- 

 sals much smaller than 

 prefrontals. Frontal longer than wide. Parietals large, longer than 

 muzzle from frpntal plate, truncate posteriorly. Loreal smaller than in 

 other species, longitudinal. Preocular low, not reaching frontal. 

 Superciliary not much narrowed anteriorly; postoculars two, sub- 

 equal. Temporals larger than scales succeeding them, in three rows 



