189. ELAPoMoitrs. 237 



anal divided ; suboaudals 28. Eed above, head, sides, and end of 

 tail black ; terminal caudal shield white ; ventrals whitish, with 

 two series of black spots. The latter spots absent in the variety 

 described as lineata,^ which differs besides in the presence of five 

 brown longitudinal lines on. the body. 



Total length 595 millim. ; tail 60. 



S. Paulo and Matto Grrosso, Brazil. 



9. Apostolepis ambinigra. ^ 



Rhynchonyx ambiniger, Peters, Mon. Berl. Ac. 1869, p. 438, -dI — 

 %. 2. 'V 'V 



ambiniger vittatus, Cope, Proc. Amer. Philos. 8oc. xxiv. 1887 



p, 66. ' 



Elapomorphus erythronotus, Peracca, Boll. Mus. Torino, x. 1895, 

 no. 196, p. 20. 



Snout strongly projecting; eye minute. Eostral large, the 

 portion visible from above much longer than its distance from the 

 frontal; latter shield once and one fourth to once and one third as 

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

 shorter than the parietals ; nasal in contact with the prEeocular ; a 

 single postocular ; six upper labials, second and third entering the 

 eye, fifth and sixth in contact with the parietal ; five lower labials 

 in contact with the chin-shields, which are subequal in size ; first 

 lower labial in contact with its fellow behind the symphysial. 

 Scales in 15 rows. Ventrals 224-242 ; anal divided ; subcaudals- 

 21-33. Eed above, yellowish white beneath ; head, nape, and a 

 gular band black ; a yellowish spot on the third and fourth upper- 

 labials ; end of tail black, the terminal shield whitish. In the var. 

 vittata. Cope, five dark brown streaks run along the body, on the- 

 vertebral row of scales and on the fourth and sixth. 



Total length 620 mUlim. ; tail 45. 



Paraguay and Matto Grosso. 



a-d. (3 (V. 231, 230, 229 ; Asuncion, Paraguay. Dr. J. Bohls fC 1.. 

 0. 30, 28, 29) & 2 (V. 

 242; C. 26). 



189. EifAPOMOIUS. — /' ^' 



Elapomorphus, part., Jan, Arch. Zool. Anat. Phys. ii. 1862, p. 41 :, 



Strauch, Bull. Ac. St. PHersh. xxix. 1884, p. 649. 

 Elapomojua, Jan, I. c. p. 42. 



Dentition apparently as in Apostolepis and Elapomorphus. Head 

 small, not distinct from neck ; eye very small, -vsrith round pupil ; 

 intemasals fused with the prsefrontals ; nasal single, separated from 

 the prseocular by a loreal ; three pairs of chin-shields. Body cylin- 

 drical ; scales smooth, without pits, in 15 rows ; ventrals rounded. 

 Tail short, obtuse ; subcaudals in two rows, 



Brazil. 



