620 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 58. 



33. SIBTNOMORPHUS CATESBEJI (Sentzen). 



A single specimen (U.S.N.M. No. 60734) of this wide-ranging 

 species from the Comberciato River, 1,800 feet, near the great bend 

 of the Urubamba. 



34. SIBTNOMORPHUS PERU ANUS (Boettfer). 



One specimen (U.S.N.M. No. 60718) from Pucyura, 9,500 feet, 

 June, 1915; E. C. Erdis. 



85. BOTHROPS PICTUS (Tsehudi). 



Two specimens (U.S.N.M. Nos. 60714-5), from the Cosireni River. 



This form is probably a local race of B. lanceolatiis, and as such 

 should have a trinominal designation. Future work will probably 

 show that it replaces B. lanceolatus in portions of central and south- 

 ern Peru, its distribution being perhaps correlated with altitudes, 

 although the Musemn of Comparative Zoology has a specimen from 

 Lima, which is practically at sea level. It is, however, on the Pacific 

 coast, and B. lanceolatus may be confined, except in Ecuador, to the 

 montaiia region. 



