ADDENDA AND COEKIGENDA. 607 



keeled, outer row faintly keeled. Ventrals 122-130 ; anal divided ; 

 subcaudals 43-48. Olive-grey above, with small black spots ; upper 

 surface of head speckled with black, back of head nearly entirely 

 black ; pale olive beneath, speckled with blackiish on the sides. 



Total length 290 millim. ; tail 65. 



Mexico. 



a. cJ (V. 129; C. 48). Guanajuato. Dr. A. DugSs [0.]; 



Paris Museum [Eij. 



jY3^ . Page 246. Tropidonotus sexlineatus. 



m. Hgr. (S (V. 153 ; Madagascar. Christiania Mus. 



C. 163). 



Add : — ^*S® 2'i'^' Tropidonotus dolichocercus. 



b. 5 (V. 162; C. 111). Ambohimitombo forest, Dr. Forsyth Major 



Madagascar. [0.]. 



Page 248. Add a species :— , 



51 a. Tropidonotus halteatus. 

 Trlmerodytes balteatus, Cope, Proc. Ac. Philad. 1894, p. 426 (1895). 



Internasals longer than broad ; prsefrontals fused to a single 

 shield ; frontal little longer than broad ; Ipreal deeper than long ; 

 one prse- and two or three postoculars; temporals 1+2; nine 

 upper labials, fourth and fifth or fifth and sixth entering the eye ; 

 six lower labials in contact with the anterior chin-shields, which 

 are shorter th^n the posterior. Scales smooth, feebly keeled on the 

 tail, in 19 rows. Ventrals 202 ; anal divided ; subcaudals 84. 

 Black, with white or pale yellow rings ; labials and oculars with 

 yellow centres ; a yeUow line from near the angle of the mouth to 

 near the middle line above ; a pair of yellow spots on the parietal 

 shields near the common suture. 



Total length 377 millim. ; tail 80. 



Hainan. 



^^^ . Page 249. Tropidonotus tigrinus. 



Bothrodytes tigrinus, Cope, Tr. Am. Philos. Soc. xviii. 1895, p. 216. 



t-u. Yg. (V. 161, 153 ; Chefoo. 



C. 64, ?). 

 V. Hgr. $ (V. 161 ; C.71). Chimabara, Japan. Mr. Hoist [C.]. 



^^^ . Page 252. Tropidonotus ceylonensis. 



Bothrodytes ceylonensis, Cope, Tr. Am. Philos. Soc. xviii. 1895, 

 p. 215. 



