346 Mr. G. A. Boulenger on 



Snakes. 

 15. TyiMops reticulatus, L. 



16. Olauconia albifrons, Wagl. 



17. Drymohitbs bifossatus, Raddi. 

 CoMer pantherinus, Schleg., nee Daud. 



18. Herpetodryas sexcarinatus, Wagl. 

 19. Leptophis Uocercusj Wied. 



Bright green above and on the sides, with the margins and 

 keels of the scales black ; yellow beneath. Otherwise typical. 



20. LiopMs pcecilogyruSy Wied. 

 Opheotnorphus doliatus, Cope ; Liophis subfaseiatus, Cope. 



21. Xenodon rhahdocephaluSj Wied. 



22. Aporophis Uneatus, L. 

 Aporqphts dilepis, Cope. 



23. Aporophis coralliventris^ sp. n. 



Kostral broader than deep, just visible from above ; inter- 

 nasals broader than long, shorter than the praifrontals ; frontal 

 twice as long as broad, longer than its distance from the end 

 of the snout, a little shorter than the parietals ; loreal deeper 

 than long ; 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 the posterior. Scales in 17 rows. Veutrals 

 155 ; anal divided ; subcaudals 71. Olive-brown above, 

 darker along the five median rows of scales, bluish grey on 

 the sides (three rows of scales) ; head without streaks or 

 markings ; upper lip white ; throat and anterior ventral 

 region white, rest of belly and tail coral-red, the shields 

 edged with black. 



Total length 300 miUim. ; tail 80. 



A single male specimen. This was not obtained at Asun- 

 cion, like the rest of the collection, but on an island north of 

 Concepcion, near San Salvador, North Paraguay. 



24. RhadincEa fiisca, Cope. 



Opheomorplius fuscttg, Cope. 



But for the statement "scales and head-plates without 



