90 AMARAL — NEW GENERA AND SPECIES OF SNAKES [ Vol'^vm' 



of the new genus and new species. Nevertheless, during the 

 work of classification I have done on the Brazilian collections, 

 I have boon very lucky indeed to find two small snakes which 

 proved to have the same pholidosis and the same craniological 

 and osteological characteristics as the genus Paroxyrhopus and 

 to be, moreover, closely allied to the species P. reticulatus. 



Paroxyrhopus atropurpureus sp. no v. 



Body cylindrical; head short, somewhat distinct from the neck; eye 

 small, a little turned upwards. Rostral broader than deep, visible from 

 above; internasals subtriangular, shorter than the praefrontals which are 

 as long as broad; frontal short, subtriangular, as long as broad, shorter 

 than its distance from the tip of the snout, much shorter than the parietals; 

 nasal entire; loreal once and a half to twice as long as deep; praeocular 

 large, extending to the upper surface of the head and in contact with the 

 frontal; supraocular small and straight; 2 postoculars, the upper larger; 

 8 (in one instance 7) upper labials, 3d, 4th and 5th, 3d and 4th, or 4th and 

 5th, entering the orbit, 6th (once 5th) in contact with the parietal between 

 the postoculars and the anterior temporal; temporals, 1 +2; 3 or 4 lower 

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

 posterior and are separated from the symphysial by the first pair of lower 

 labials. Scales smooth, without apical pits, in 19 rows; ventrals, 173-181 + 

 1/2, rounded laterally; anal entire; subcaudals, 39-40 pairs. 



Blackish brown above, irregularly variegated with dark red on the 

 sides; tips and belly entirely yellowish. 



Type, adult d% no. 3003 in the collection of the Institute de Butantan, 

 received alive on March 18, 1920, from Mr. Paulo Treszoks, locality Nova 

 Baden, in the southern part of the State of Minas Geraes, Brazil. Upper 

 labials, 8/8 (3d, 4th and 5th entering the orbit); ventrals, 181 + 1/2; sub- 

 caudals, 40 pairs. Total length, 430 mm.; tail, 60 mm. 



Paratype: Adult cf , no. 1499 in the collection of the Museu Paulista, 

 caught near Marianna, in the southeastern part of the State of Minas 

 Geraes, by Mr. Jacyntho B. de Godoy, in 1898. Upper labials, 7/8 (3d and 

 4th/4th and 5th entering the orbit); ventrals, 173; subcaudals, 39 pairs. 

 Total length, 400 mm.; tail, 57 mm. 



I found two more specimens of P. atropurpureus in the collection of the 

 Museu Nacional, of Rio Brazil. They were collected in the State of Minas 

 Geraes, Brazil, and are numbered 345, 346. 



