66 Alkxander G. Rutiiven 



Concepcion (W. W. Brown) ; Yalle de Upar (observed). Of the two 

 specimens seen one was in a river, the other on the bank of a stream. 



Leptophis occidentalis (Giinther). — One specimen from Aracataca 

 (Rehn and Hebard). In the stomach of this specimen was found the lizard 

 referred to Poly dims spiirrelli. 



Leimadophis mclanotus (Shaw). — Bolivar to 5,500 feet, San Lorenzo: 

 Fundacion ; Arigauni ; Valencia ; Arroyo de Arenas ; San Miguel, 5,000 feet 

 (M. A. Carriker). Taken on the edge of marshes and ditches at Bolivar, 

 in the wet and dry forests in other localities on the lowland, in the forest 

 at 5,500 feet, tmder the bark of a stump at Fundacion (one), and on the 

 savanna at San Miguel. One specimen had eaten a frog. 



Leimadophis alhiventris Jan. — Pueblo Viejo, 8,000 feet (W. W. Brown). 

 A single specimen is referred to this species. 



Lanipropeltis inicropholis Cope. — The writer has examined the speci- 

 men from Cacagualito, Colombia, recorded by Grififen^^ and examined and 

 referred to this species by Dr. F. N. Blanchard. 



L,eptocalamus torquatus Giinther. — A single specimen taken in a log in 

 the dry forest at Valencia. 



The specimen conforms to the description of the type in having a 

 broad nuchal collar which was yellow in life. The head and the region 

 just behind the collar are dark brown, the rest of the dorsal surface a 

 brownish olive, the ventral surface pearly white. The portion of the rostral 

 visible from above is about one-third of its distance from the frontal. 



Atractns irridcsccns Peracca. — San Lorenzo, 4,000 to 6,500 feet; San 

 Sebastian (W. W. Brown). Apparently not uncommon but a secretive 

 form between 4,000 and 6,500 feet; usually found under logs and stones. 



One specimen has 15 dorsal scale rows, and 9 have ly rows. The 

 upper labials are 7 in every specimen ; the lower labials are 7 in 4 speci- 

 mens, 7 and 8 in four, 8 in one, and 6-7 in one. The ventrals vary from 

 152 to 169, the subcaudals from 22 to 34. The coloration is very variable. 

 The dorsal coloration in some specimens is brownish black with small trans- 

 verse pale brown spots, in others dark brown with small, obscure black 

 spots, and others (young) are red with prominent black spots and cross 

 bars. A large specimen from San Sebastian is olive brown with black 

 spots and cross bars. The ventral surface may be immaculate white or 

 dull white irregularly spotted with black or with two broad black bands. 

 The irridescence is strongly marked in the young and medium-sized 

 specimens. 



The writer is not sure of the identity of the specimens referred to, 

 particularly of those from San Sebastian, but has given them this name as 

 they conform to the descriptions of Peracca^" and Boulenger.*" The varia- 

 tions of the species in this genus have not been determined, and the char- 

 acters used to distinguish the forms have evidently not been properly 

 evaluated. 



ss Mem. Carnegie Mtis., VII, p. 176. 

 30 Bol. Mus. Torino, No. 252, 1896. 

 *° Proc. Zool. Sac. London, 1913, 1035. 



