May 4, 1877.] 33 [Cope. 
Synopsis of the Cold Blooded Vertebrata, procured by Prof. James Orton 
during his Exploration of Peru in 1876-77. 
By E. D. Cope. 
(Read before the American Philosophical Society May 4, 1877.) 
REPTILIA. 
OPHIDIA. 
1. Borprors pictus Tsch. Jan. Elenco Sistematico, p. 126.  Lachesis 
pictus, Tschudi Fauna Peruana, p. 61, Tab. X. 
Nos. 11, 14, 15, 17, 19, from Chimbote Valley, Lat. 9°S., altitude from 
0 to 2000 feet. 
A very distinct species, well figured by Tschudi. In five specimens the 
fossa is bounded in front by the second superior labial plate, as described 
by Jan ; in one other the fossa is surrounded by small scutella. 
2. ELAPS CIRCINALIS Dum. Bibr. VII, p. 1210. Cope, Journal Academy 
Nat. Sciences, 1865, p. 182. 
No. 45, Pacasmayo. 
3. ELAPS TSCHUDII Jan. Revue et Magazine de Zodlogie, 1859, Prodrome 
(une Iconographie, etc., p. 15. 
No. 18, Chimbote Valley. 
4. OXYRRHOPUS FITZINGERI Tschudi, Fauna Peruana Reptilia p. 56. 
Tab. 
No. 21, Chimbote Valley. 
5. OXYRRHOPUS CLELIA Dandin. Dum. Bibron VII p. 1007. 
6. SrsBoN ANNULATUM Linn. Dipsas Dum. Bibr. VII, p. 1141. Leptodira 
Ginther. 
Nos. 23-25, Chimbote Valley. 
7. TACHYMENIS PERUVIANA Wiegmann ‘‘ 1834”’ (fide Peters); Archiv. fiir 
Naturgesch. 1845, 165. 
No 72, from Cuzco ; elevation 11000 feet. 
This species is ‘probably distinct from the 7’. chilensis Schleg. This 
conclusion is derived from an examination of Wiegmann’s type in the Mu- 
seum of the University of Berlin, and it is sustained by the present speci- 
men from Cuzco. Its characters are : one preocular, eight superior labials, 
loreal higher than long, superior surfaces of the body and tail with four 
series of dark spots. The characters of the 7. chilensis are: two or three 
preoculars, seven superior labials, length of the loreal equaling or exceed- 
ing the height, superior surfaces with four longitudinal brown bands. 
8. DRYOPHYLAX VITELLINUS sp. nov. 
Form moderately slender, head oval, narrowed to the rather depressed 
muzzle. Scales smooth, in nineteen longitudinal rows, with single apica) 
fosse. Eight superior labials, fourth and fifth entering the orbit. Ros- 
PROC. AMER. PHILOS. Soc. xvilI. 100. E 
