852 REPORT OF NATIONAL MUSEUM, 1898. 



temporal regions, which extend from the orbit to the inferior posterior 

 angle of the seventh superior labial. Throat immaculate, yellowish. 



Cat. No. 2257; gastiosteges, 244 + 1; urosteges, 77; scales, 29; total length, 708 

 mm. ; tail, 143 mm. 



This species resembles in general the C. spiloides, but there are 

 important differences. Besides the increased number of the tem- 

 poral scales the form of the head and body are different; the head 

 being less distinct and the body not compressed, and there are more of 

 the dorsal scales keeled. The dorsal spots show none of the produced 

 angles of the (7. spiloides. The continuation of the nuchal bands over 

 the supraorbital shields to the prefrontals is peculiar to this species, 

 since in all the other banded species the nuchal bands unite on the 

 middle line of the frontal, or parietals, and the prefrontal band is in 

 line with the postocular. Here there is no postocular. 



Coluber hvtus liaird and Girard. 



I have not been able to find the type of Baird and Girard, which may 

 be lost. The specimen above described agrees with it in essential par- 

 ticulars except in the number of gastrosteges, which number in the 

 type 227. The latter is from a locality not far from that of the present 

 animal, viz, the Red River in Arkansas. 



COLUBER EMORYI Baird and Girard. 



Coluber emoryi Cope, Check-list N. Amer. Butr. Kept., 1875, p. 39. 



ScotopMs emoryi Baird and Gikard, Cat. N. Amer. Rept., Serp., 18.^3, \i. 157; 



Report U. S. Mex. Bound. Surv., II, Pt. 2, 1859, p. 19, pi. xii. 

 Scotophis callu/aster Kennicott, Proc. Acad. Nat. Sci. Phila., 1859, p. 99. 

 Coluber rhinomegas Cope, Proc. Acad. Nat. Sci. Phila., 1860, p. 255. 

 Coluber gutiatm Boulenger, part. Cat. Snakes Brit. Mus., 1894, p. 39. 



Plates and shape of head much as in G. (jnttatm. ' Three well-devel- 

 oped scales in the first row of temporals. Frontal plate more elongated 

 than in the species of allied color, being decidedly longer than broad. 

 Head rather narrow. Eye larger than in C. gutiatns, its center a little 

 posterior to the junction of the fourth and fifth labials. Postorbitals 

 resting on the fifth labial, as in the other species. Anteorbital large. 

 Loreal elongated, acute angled behind. ITpper labials eight, si.xth and 

 seventh largest; lower eleven, sixth largest. Dorsal rows of scales 27- 

 29, all smooth, except traces on central five or six, in a very few indi- 

 viduals; exterior row largest; rest nearly equal. Ground color grayish 

 ash. A series of olivaceous brown transverse quadrate blotches along 

 the back as high as seventy in number, from tliirtj' five to fifty anterior 



