154 APPENDIX B. 



T. Coluber planiceps, Blainv. — "rniform reddish above, of a 

 soiled -wliite beneath, -with a black patch on the occiput and the beginning 

 of the neck." 



Stn. Coluber planiceps, Blainv. Nouv. Ann. Mus. Hist. Nat. Ill, 1834, 62. 

 PI. xxYii, figs. 3, 3 a, 3 b. 



"Body slender, rather elongated, cylindrical; head small, de- 

 pressed, but little distinct; snout short and elliptical; tail rather 

 long, slender, and very much tapering, \ of the total length. Nostrils 

 lateral, very small, situated in the middle of the nasal, which is elon- 

 gated and single. Eyes of medium size. Mouth broad, consider- 

 ably cleft ; anus far back. Cephalic plates : two prefrontals and two 

 postfrontals. No loral. One anterior and one postorbital. Ab- 

 dominal scutellae 134, beginning at some distance from the head. 

 Subcaudal 56. Scales broad, convex, very smooth, opalescent, ob- 

 liquely imbricated." 

 California. M. Botta. 



Genus CHAR I IV A, Gray. 



Gen. Char. Resembles Wenona in general shape and appear- 

 ance, and bears with it many affinities in structure. There are two 

 lorals instead of one ; three anteorbitals instead of one ; three super- 

 ciliaries instead of one ; and the subcaudal scutelloe much narrower, 

 and more elongated transversely. The comparison of specimens will 

 no doubt show other generic differences inappreciable by the de- 

 scriptions. 



Syn. Charina, Gray, Catal. of Snakes in Brit. Mus. 1849, 113. 



S. Cliariiaa Bottse, Gray.— Body cylindrical, blunt at each end ; 

 pale yellow ; back and tail darker. 



Syn. Charina Boitx, Gray, Catal. of Snakes in Brit. Mus. 1849, 113. 

 Tortrix Bottae, Blainv. Nouv. Ann. Mus. Hist. Nat. Ill, 1834, 57. PI. 

 sxvi, figs. 1, la, lb. 



