(186 OPHIDIA. 
9. Klaps elegans. 
Elaps elegans, Jan, Rev. et Mag. Zool. x. p. 524 (1858) ; Iconogr. Ophid. xlii. t. 5. fig. 2. 
Hab. Mexico, Huatuzco in Vera Cruz (Godman), Teapa in Tabasco (H. H. Smith) ; 
GUATEMALA, Vera Paz, low forest (Salvin). 
Fam. HYDROPHIDA, 
. PELAMIS. 
Pelamis, sp., Daudin, Hist. Nat. Rept. vil. p. 857 (1802). 
1. Pelamis bicolor. 
Hydrus bicolor, Schneid. Hist. Amph. p. 242. 
Pelamis bicolor, Daud. Hist. Nat. Rept. vil. p. 366; Fischer, Abhandl. naturw. Ver. Hamburg, 
1856, p. 61; Cope, Proc. Ac. N. Sc. Phil. 1859, p. 847 ; ‘Journ. Ac. N. Se. Phil. viii. p. 148 
(1875) ; Giinth. Trans. Zool. Soc. vi. p. 400. 
Hab. Wxst Coast or Mextco (Mus. Berol.); Costa Rica, Pacific coast (Champion, 
Van Patten); Bay or Panama (Seemann, Dow, Salvin, Sallé).—Invo-Paciric 
OcEAN. 
This is the species of sea-snake mentioned by Seemann [Voyage ‘ Herald, "i. p. 265 
(1848)]. It has been seen by M. Sallé and Mr. Salvin * in considerable numbers near 
the Bay of Panama, and more recently by Mr. Champion off Punta Arenas, Costa Rica. 
Fam. CROTALIDA. 
ANCISTRODON. 
Agkistrodon, Beauvois, Trans. Am. Phil. Soc. 1799, p. 381. 
Ancistradon, Cope, Proc. Ac. N. Se. Phil. xi. p. 386 (1860). 
Cenchris, Daudin, Hist. Nat. Rept. v. p. 356 (1802). 
1. Ancistrodon bilineatus. (lab. LVIII. figg. A & B, ad. et juv.) 
Ancistrodon bilineatus, Giinth. Ann. & Mag. N. H. 1863, xii. p. 864; Cope, Proc. Ac. N. Se. Phil. 
1865, p. 191; Bull. U. S. Nat. Mus. no. 32, p. 89; Miiller, Verh. naturf. Ges. Basel, 
1878, p. 404; Sumichrast, Bull. Soc. Zool. Fr. 1880, p. 185. 
“ Cantil” in Tehuantepec. 
Hab. Muxtco, Tres Marias Is., Presidio (Forrer), Colima and Guadalajara (Xantus), 
Tehuantepec (Sumichrast), Yucatan (Mus. Brit.); Britiss Honpvuras, Belize 
(Mus. Brit.); Guavemana, Pacific coast (Salvin); Nicaraeua (Cope). 
* Of. Ginth. P. Z. 8. 1858, p. 381. 
