ADDENDA AND CORRIGENDA. 639 



Add : ^^S^ 208. Coronella regalis. ^ 



Erase " DiadopTiis arnyi " from the synouymy. 



Page 211. Add a genus : — 



89 a. DREPANODON. '^^^^ 



Cloelia {non Fitz.), Jan, Elenco sist. Ofd. p. 92 (1868). 

 Drepanodon, Feracca, Boll. Mm. Torin. xi. 1896, no. 231, p. 3. 



1 to 10 small maxillary teeth increasing in length, followed, 

 after an interspace, by two large, compressed teeth ; mandibular 

 teeth subequa]. Head distinct from neck ; eye moderate, with 

 vertically elliptic pupil. Body cylindrical ; scales smooth, with or 

 without apical pits, in 15 (or 17) rows; ventrals rounded. Tail 

 moderate ; subcaudals in two rows. 



South America. 



1. Drepanodon anomalus. 



Cloelia anomala, Jan, I. c, and Icon. Qen. 35, pi. i. fig. 4 (1870). 

 Oxjrhopus anomalus, Boettg. Zool. Am. 1891, p. 347. 

 Drepanodon anomalus, Peracca, I. c. p. 3. 

 stigmaticua, Peracca, I. c. p. 5. 



Rostral broader than deep, just visible from above ; internasals 

 half as long as the prsefrontals ; frontal slightly longer than broad, 

 as long as its distance from the end of the snout, as long as or 

 slightly shorter than the parietals ; loreal very small or absent ; 

 one prse- and two postoculars ; temporals 1 + 2 or 2 + 2 ; six upper 

 labials, third and fourth entering the eye : three or four lower 

 labials in contact with the anterior chin-shields ; posterior chin- 

 shields as long as or shorter than the anterior. Scales in 15 rows. 

 Ventrals 150-169 ; anal entire ; subcaudals 67-77. Yellowish 

 above, each scale with a black terminal dot ; upper surface of head 

 and nape black, with a whitish collar ; uniform yellowish white 

 beneath. 



Upper Amazon. 



2. Drepanodon ? flavitorques. ^ 



Liophis flavitorques. Cope, Proc. Ac. Philad. 1868, p. 307. 



Rostral projecting and well visible from above ; frontal very 

 broad, with a long produced posterior angle ; loreal deeper than 

 long ; one prae- and two postoculars ; temporals 1 + 2 ; seven upper 

 labials, third and fourth entering the eye ; chin-shields short. 

 Scales in 17 rows. Ventrals 188 ; anal divided ; subcaudals 105. 

 Uniform dark brown above, with a broad yeUow half-collar crossing 

 the posterior half of the parietal shields and two rows of scales ; 

 below dirty yellowish. 



Total length 440 millim. ; tail 140. 



Magdelen River, Colombia. 



