COLUBEID^. 



24. Rhadiiisea vittata. 



Enicognathus vittatus, part., Jan, Arch. Zool. Anat. Phys. ii. 1863, 



p. 271, and Icon. Gin. 16, pi. ii. fig. 3 (1866) ; Bocourt, Miss. Sc. 



Mex., Rept. p. 630, pi. xli. fig. 1 (1886). 

 Dromicus tseniatus, Peters, Mon. Berl. Ac. 1863, p. 275 ; Gunth. Biol. 



C.-Am., Bept. p. 118 (1894). 

 Ehadinsea fulvivitfis, (hpe, Journ. Ac. Philad. yiii. 1876, p. 139. 



tseniata, Cope, I. c. p. 140. 



Diadophis fulyivittis, Garm. iV. Am. Bept. p. 158 (1883). 

 Ehadinsea quinquelineata, Cope, Proc. Amer. Philos. Soc. xxiii. 1866, 



p. 277. 



vittata, Cope, Bull U.S. Nat. Mus. no. 32, 1887, p. 80. 



Diadophis decoratus, Garm. Bull. Essex Inst. xix. 1888, p. 127. 

 Ooronella quinquelineata, Gunth. Biol. C.-Am., Bept. p. Ill (1893). 

 Dromicus omiltemamis, Giinth. I. c. p. 113, pi. xl. fig. B (1894). 

 fulvivittia, Gunth. I. c. p. 113. 



Eye rather small. Eostral broader than deep, just visible from 

 above ; intemasals broader than long, shorter than the praefrontals ; 

 frontal once and a half to once and two thirds as long as broad, 

 longer than its distance from the end of the snout, shorter than the 

 parietals ; loreal as long as or a little longer than deep ; one prae- 

 and two postoculars ; sometimes a small subocular below the prse- 

 ocular ; temporals 1 + 2 or 1 + 1 ; eight upper labials, fourth and 

 fifth entering the eye ; five lower labials in contact with the anterior 

 chin-shields, which are as long as or a little shorter than the 

 posterior. Scales in 17 rows. Ventrals 145-183 : anal divided ; 

 subcaudals 88-132. Length of tail 3 to Sg times in the total 

 length. Dark brown above, with two yeUow longitudinal streaks 

 commencin'g on the snout, or yellowish brown with three dark 

 brown or black stripes ; upper lip and lower parts yellowish white. 



Total length 700 millim. ; tail 210. 



Mexico. 



A. A black dot at the outer end of each ventral. 



a-b. Hgr. 2 (V. 182,183; City of Mexico. Mr. Doorman [C.]. 



C. 106, 100). 



c, d-e. d (V. 172 ; 0. ?), La Cumbre de los Dr. A. 0. BuUer [C.l. 



$ (V. 182 ; C. 88), & Arrastrados, Ja- 



yg. (V. 165; 0. 106). lisco. 



/. Hgr. $ (V. 153; C. OmiIteme,Guerrero. F. D. Godman, Esq. 



88). [P.]. (Type of B. 



oiniltetnanus.) 



g. Hgr. d" (V. 175 ; 0. Mexico. 



90). 



B. Ventrals without black dots ; two outer rows of scales 



yellowish. 



h. S (V. 163 ; 0. 99). Xantipa, Guerrero. Mr. H. H. Smith [0.] ; 



F. D. Godman, Esq. 



[r. h! H. I 



i. Yg. (V. 162 ; 0. 132). Amula, Guerrero. Mr. H. H. Smith [C] ; 



F. D. Godman, Esq. 

 [P.]. 



