Nov. 51 

 1923 J AMARAL — NEW GENERA AND SPECIES OF SNAKES 89 



the orbit; 4 lower labials in contact with the anterior chin shields, which 

 are shorter than, or sometimes as long as, the posterior. Scales smooth, 

 without apical pits, in 17 rows; ventrals, 139-158; anal divided, sub- 

 caudals, 47-58 pairs. 



Dark olive or dark brown above; edges of the scales lighter; a yellowish 

 narrow streak running on the labials, broadening into a blotch on each side 

 of the neck, and then continuing as a narrow line a little distance on the 

 contiguous borders of the 1st and 2d rows of scales; chin and throat 

 spotted with yellowish; belly dark olive or brown with two yellowish, 

 almost uninterrupted lines running laterally and separated one from the 

 other by an olive or brown median line, the middle of which is occupied 

 posteriorly by an interrupted yellowish line formed by small spots axially 

 placed on the free edge of the ventrals; under surface of the tail of the same 

 color, with two yellowish longitudinal lines separated one from the other 

 by a dark median line. 



Type, adult cf, no. 3007 in the collection of the Instituto de Butantan; 

 sent alive from the locality Pod, near the capital of the State of Sao Paulo, 

 Brazil, by Mr. Marcos Favali, on July 13, 1922; total length, 387 mm.; 

 tail, 80 mm.; ventrals, 139; subcaudals, 51 pairs. 



Paratypes: Adult d 71 , no. 1578 in the collection of the Museu Paulista 

 (of the ophiological section of which I am also in charge), caught in the 

 locality Rio Grande, near the Serra de Cubatao, State of Sao Paulo, Brazil, 

 by Mr. Mathias Wacket, in March, 1902; total length, 300 mm.; tail, 56 

 mm.; ventrals, 144; subcaudals, 47 pairs. Young 9, no. 1579 in the 

 collection of the Museu Paulista, caught in the locality Conceicao de 

 Itanhaem on the coast of the State of Sao Paulo, by Mr. Francisco Adam, 

 in August, 1909; total length, 184 mm.; tail, 36 mm.; ventrals, 158; 

 subcaudals, 58 pairs. 



Sordellina pauloensis is closely allied to S. brandon-jonesii 

 Proctor, 1923, from which it differs in the physiognomy and in 

 the ventral and subcaudal markings, and in having a larger 

 praeocular, a deeper upper postocular, and the 4th and 5th 

 upper labials in contact with the eye. 



Since 1900, when Schenkel 1 described the genus Paroxyrhopus 

 with the single species reticulatus, based on one specimen col- 

 lected in Belmacue, Paraguay, by Dr. C. Ternetz, so far as I 

 know no other specimen has been found, which implies the rarity 



i E. Schenkel, Achter Nachtrag z. Kat. d. hcrp. Sammlung des Basler Museums, 1900, 

 pp. 168-170. 



