139 



perior somewhat larger. No anterior and 

 one posterior temporal. 7 supralabials, 

 the third and the fourth entering the 

 eye, the former only in a point, the 

 latter forming the whole of the lower 

 margin; the sixth much larger than the 

 others and reaching the parietal, the 

 seventh well developed. Symphyscal not 

 reaching the anterior chin shields. 4 

 infralabials in contact with the anterior 

 chin shields wliich are shorter tJian the 

 posterior ones. 15 rows of scales. 226 

 central shields and 22 subcaudal on each 

 side. Anal shield divided. 



Body reddish, showing 15 sets of 

 black rings, disposed in three. The mid- 

 dle ring is much wider and separated 

 from the others by unspotted white rings. 

 The red rings between the sets are dot- 

 ted with black on the upper, unspotted 

 on the under side. In the first group 

 there are only two well developed black 

 rings, the first one being reduced to a 

 few black spots. 



The fore part of the head is black 

 above with a crescent shaped white band, 

 concave anteriorly and covering the pre- 

 frontals, also on each side the posterior 

 nasal and second superlabial. Above it 

 passes on the anterior margin of the 

 frontal and the posterior of the interna- 

 sals, laterally on the front margin of 

 the supraocular, the fore half of the 

 preocular and the fore margin of the 

 third supralabial. Behind, the upperside 

 of the head is red, dotted with black 

 spots, two larger ones situated on the 

 apex of the parietais. Below the head 

 is red, dotted with black, the symphy- 

 seal and the first infralabials on each 

 side entirely black. A narrow, unspotted, 

 white ring separates the head from the 

 body. Tail with black apex, the rest as 

 on the body. 



Total length 670, length of the tail 

 4Ü mm. 



This species is dedicated to the me- 

 mory of Dr. EZEQUIEL DIAS who foun- 



ded and directed the Branch Institute in 

 Bello Horizonte and established the pro- 

 phylaxis of poisonous snakes and scor- 

 pions in the State of Minas. 



Rhinostoma bimaculatum n. sp. 



Maxillary teeth subequal, 10 -|- 2. 

 Mandibulary teeth subequal. Eye smalL 

 Pupil vertically elliptic. Snout short 

 with parabolic anterior outline, slan- 

 ting upwards. Inferior plane of rostral 

 longer than the superior which shows 

 a blunt keel. Internasals broader than 

 long and shorter than the prefrontals. 

 Frontal longer than broad, equal to the 

 distance from the end of the snout and 

 to the length of the parietais. No frenal 

 One preocular much shorter than the 

 supraocular, which is very narrow and 

 half as long as the frontal; 2 postoculars. 

 Temporals 2 -j- 2. 8 supralabials, third, 

 fourth and fifth entering the eye, se- 

 cond and third touching the prefrontal. 

 Four lower labials in contact with an- 

 terior chin shields, which are equal in 

 length to the posterior ones. Scales 

 smooth, with apical pits, forming 19 lon- 

 gitudinal rows. Ventrals 164. Anal undivi- 

 ded. Subcaudals 40 on each side (the last 

 ones not distinct). Tail tapering. 



Body above reddish; just behind the 

 neck, two spots of 5 mm. in width and 

 10 in length, consisting of 4—5 rows of 

 blackish scales, separated by the median 

 row. Scales of the back with apex infús- 

 cate. Belly, 3—4 rows of lateral scales 

 and supralabials altogether white. Co- 

 louring of the tail equal to that of the 

 body. 



Total length 510. length of the tail 

 75 mm. 



Collected in Pirapora, State of Minas 

 Geraes, in the collection of the Branch 

 Institute in Bello Horizonte. 



This species is separated from guia- 

 nense and vitfatum by lacking a frenal. 

 it stands near to Iglesiasi but differs bj; 



