ART. 24 SOUTH AMERICAN SNAKES AMABAL 11 



The above table shows that the individuals of this species vary very 

 much. Therefore, I am inclined to follow Boulenger and regard 

 the differences shown by the specimens from the western side of 

 South America only as color variations of S. mikanii. 



44. DIPSAS INDICA Laurenti 



Dipsas indica Laurenti, Syn. Rept., 1768, p. 90. 



Dipsas bucephala Boulenger, Cat. Snakes Brit. Mus., vol. 3, 1896, p. 461. 



Peru. — 1 specimen: No. 60734, from the Comberciato River, 

 collected by E. Heller. 



45. IMANTODES CENCHOA (Linnaeus) 



Coluber cenchoa Linnaeus, Syst. Nat., ed. 10, vol.1, 1758, p. 226. 

 Imantodes cenchoa Dumeril and Bibron, Erp. G^n., vol. 7, 1854, p. 1065. 

 Himantodes cenchoa Boulenger, Cat. Snakes Brit. Mus., vol. 3, 1896, p. 84. 



Colombia. — 2 specimens: No. 4300, sent from New Grenada by 

 Mr. Schott: 1 praeocular; 2 + 3 postoculars; 3 + 3 temporals. No. 

 11270, sent from Madina River by Dr. Ruth. 



Ecuador. — 4 specimens: No. 14036, collected by Dr. W. H. Jones: 

 1 praeocular; 2 postoculars; 2+3 temporals. No. 20614: 1 praeo- 

 cular; 2 postoculars; 2 + 3 temporals; and No. 20615: 1 praeocular; 

 3 postoculars; 3 + 3 temporals, both collected by Mark B. Kerr. 

 No. 56320 from Napo: 1 praeocular; 2 postoculars; 2 + 3 temporals. 



Trinidad. — 4 specimens: No. 14496, collected by A. H. Riise: 

 1 praeocular; 1 postocular; 2 + 2/2 + 1 temporals. Nos. 14498 and 

 17499: 1 praeocular; 2 postoculars; 2 + 2 temporals; and No. 17450: 

 1 praeocular; 2 postoculars; 1+2 temporals; all collected by Mr. 

 Wayman. 



46. LEPTODEIRA ANNULATA (Linnaeus) 



Coluber annulatus Linnaeus, Syst. Nat., ed. 10, vol. 1, 1758, p. 224. 

 Coluber albofuscus Lacepede, Hist. Nat. Serp., vol. 2, 1789, p. 94. 

 Leptodeira annulala Guenther, Cat. Colubr. Snakes Brit. Mus., 1858, p. 166. 

 Leptodeira albofusca Guenther, Cat. Colubr. Snakes Brit. Mus., 1858, p. 166. 

 Leptodira annulata Boulenger, Cat. Snakes Brit. Mus., vol. 3, 1896, p. 97. 

 Lepiodira albofusca Boulenger, Cat. Snakes Brit. Mus., vol. 3, 1896, p. 95. 

 Leptodeira annulata Griffin, Ann. Carnegie Mus., vol. 11, 1917, p. 321. 



Panama.— 8 specimens: Nos. 54160, 54161, 54077, 54078, 53829, 

 54227, 45567, and 54266. 



Colombia. — 2 specimens: No. 11272 collected at Madina (?) River 

 by Dr. Ruth. No. 32277, collected at Truando (?). 



Ecuador. — 1 specimen: No. 22444, collected by Mark B. Kerr. 



Peru. — 2 specimens: Nos. 28295 and 28296, sent from Ignitas by 

 Mr. Carter. 



Dutch Guiana.— 8 specimens: Nos. 11149, 11154, 11156, 11158, 

 11160, 11161, 11162, and 12549; all collected by C. J. Hering. 



