81. RIIADIXJCA. 171 



Rhadinnea geniinaculata, Boulvng, Ann. $ Mtiy. JV. //. (6) xiii. 1894, 



!>. :!47. 



Eye moderate. Rostral slightly broader than deep, scarcely 

 visible from above ; internasals broader than long, as long as the 

 pr;i Irontals ; frontal twice as long as broad, not much wider than the 

 supraocular, much longer than its distance from the end of the snout, 

 a little shorter than the parietals ; loreal as long as deep ; one pne- 

 and two postoculars ; temporals 1+2; eight upper labials, fourth 

 and fifth entering the eye ; five lower labials in contact with the 

 anterior chin-shields, which are a little longer than the posterior. 

 Scales in 17 rows. Ventrals 191-208 ; anal divided ; subcaudals 

 51-66. Pale grey-brown above, with three dark brown light-edged 

 longitudinal streaks ; the vertebral streak widest, hardly two scales 

 wide, and commencing on the occiput ; the lateral streaks widening 

 abruptly at the angle of the mouth and extending, through the eye, 

 to the end of the snout ; upper lip and lower surface uniform white; 

 a pink stripe along the middle of the belly and under the tail. 



Total length 390 millim. ; tail 75. 



Paraguay. 



a. rf (V. 191 ; C. 56). Paraguay. Hr. H. Rohde [C.]. 



(One of the types.) 

 6. $ (V. 199 ; C. 55). Asuncion. Dr. J. Bohls [C.]. 



13. Rhadinaea obtusa. 



Rhadinsea obtusa, Cope, Proc. Ac. Philad. 1863, p. 101. 

 Knifo^riiathus, sp., F. Midi. Vtrh. not. Ges. tinsel, vii. 1882, p. 144. 

 Coronella obtusa, Houleny. Ann. 4* Mag. N. H. (5) xv. 1885, p. 194. 



Eye rather small. Rostral a little broader than deep, scarcely 

 visible from above ; internasals broader than long, as long as the 

 praef rentals ; frontal once and a half as long as broad, twice as 

 broad as the supraocular, longer than its distance from the end of 

 the snout and a little shorter than the parietals ; loreal square ; one 

 prae- and two postoculars; temporals 1 + 2; eight upper labials, 

 fourth and fifth entering the eye ; five lower labials in contact with 

 the anterior chin-shields, which are as long as or a little longer than 

 the posterior. Scales in 19 rows. Ventrals 174-192 ; anal 

 divided ; subcaudals 65-79. Pale brown above, with a dark brown 

 vertebral streak, occupying one scale and two halves, commencing on 

 the snout ; a dark brown lateral streak, extending round the snout 

 and passing through the eye ; sides and outer ends of ventrals 

 dark olive-grey ; upper lip and lower surface yellowish, unspotted. 



Total length 380 millim. ; tail !.'>. 



Southern Brazil, Uruguay, Argentina. 



c. rf (V. 187 ; 0. 79). lii.i Grande do Sul. Dr. II. v. Ihering[C.]. 



b. $ (V. 185 ; C. 74). Dept. of Soriano, R. Havers, Esq. [P.]. 



Uruguay. 



c. <$ (V. 174 j C. 66). ColonmResistencia, Prof. S^egazzini [C.]; 



C. Chaco. Marquis U.Doria{P.j. 



