97. SIMOPHIB. 253 



than deep ; one prso- and one postocular ; temporals 1 + 2 ; seven 

 upper labials, third and fourth entering the eye; anterior chin- 

 shields longer than the posterior. Scales in 17 rows. Ventrals 

 141 ; anal divided ; subcaudals 120. Palo grey-brown above, with 

 three darker longitudinal streaks ; lips and lower parts yellowish 

 white. 



Total length 390 millim. ; tail 90. 



Cuba. 



97. SIMOPHIS. 



Rhinostoma, part., Fitzing. N. Class. Rept. p. 29 (1826) ; Gunth. 



Cat. Col. Sn. p. 8 (1858). 



Heterodon, part., Schleg. Phys. Serp. ii. p. 96 (1837). 

 Simophis, Peters, Mon. Berl. Ac. 1860, p. 521. 

 Khinaspis (Fitz.), Jan, Arch. Zool. Anat. Phys. ii. 1863, p. 215. 



Maxillary teeth 20 to 22, equal ; mandibular teeth equal. Head 

 slightly distinct from neck, with prominent, cuneiform snout ; eye 

 moderate, pupil round ; rostral large, with obtuse transverse keel ; 

 nostril between two nasals. Body elongate, cylindrical ; scales 

 smooth, with apical pits, in 15 rows ; ventrals angulate laterally. 

 Tail moderate ; subcaudals in two rows. 



Brazil. 



1. Simophis rhinostoina. 



Heterodon rhinostoina, Schley. Phys. Serp. ii. p. 100, pi. iii. figs. 17- 



19 (1837). 



Rhinostoma schlegelii, Giinth. Cat. p. 8 (1858). 

 Simophis rbinostoma, Peters, Mon. Berl. Ac. 1860, p. 521. 

 Rhinaspis proboscideus, Jan, Arch. Zool. Anat. Phys. ii. 1863. 



p. 216. 



Portion of rostral visible from above measuring about two thirds 

 its distance from the frontal ; suture between the internasals as 

 long as that between the praefrontals ; frontal a little shorter than 

 ita distance from the end of the snout, as long as the parietals ; 

 loreal square ; one prae- and two postoculars ; temporals 2+2 ; 

 seven upper labials, third and fourth entering the eye ; four lower 

 labials in contact with the anterior chin-shields, which are as long 

 as the posterior. Scales in 15 rows. Ventrals 170-190 ; anal 

 divided ; subcaudals 64-66. Yellowish above (red in life ?) with 

 black rings arranged in threes, the narrow interspaces between the 

 three rings black-spotted ; snout black and yellow ; vertex and 

 occiput black, with a yellow bar across the frontal and a round 

 yellow spot in the middle of the suture between the parietals ; belly 

 with black transverse spots in addition to the rings. 



Total length 510 millim. ; tail 105. 



Brazil. 



a. $ (V. 172: 0. 04). Rrazil. Prof. C. Machado [P.]. 



