SYSTEMATIC LIST AND SYNONYMY. 133 
OPHIDI A—Continued. 
vertebral broader. Ventrals 266 to 271. Subcandals 36 to 52, entire. 
Yellowish, reddish, or greyish brown, light to dark, punctulate and 
clouded with darker, with irregular transverse badly defined bands of 
darker, which are often confluent into more or less distinct longitudinal 
bands on the sides of the neck. Belly olivaceous, flecked with lighter. 
Tail sometimes transversely banded. Some specimens are nearly uni- 
form in coloration, very light to almost uniform black. The specimens 
described were large ones from Porto Rico. Reinhardt’s specimens had 
264 to 271 ventrals, and 67 to 69 subcaudals. The tail is shorter in the 
adult, and commonly the tip is imperfect. 
West Indies; (?) Central America; (?) Mexico. 
ACACOPHIDIA. (Non-venomous Snakes.) ... 
COLUBRIDAE......... Ui Bcer c (Sleep eo sowdLasbecMomoscrotp omotned Dow sul 
Bonap., 1831, Saggio, ete. 
1b deteco po O06 a Bhat 
JOD SVAIDIONUD oc “og tone (0 0 OD ondeded Oecd SOOO do GeO 0 6 OQ Gxt. | all 
LEPTOGNATHUS. ... . Pood Gao & AU A1Et Cae oloeo Ost) Eo been ale 
Dum., 1852, Mem. Acad., 23, p. 467; D. & B., 1854, Erp., VII, 473; 
Gthr., 1858, Cat., 177. 
LeprocNatius MASGUATUS! = ‘es op « ie « sf © Bue? fa: he) lense) 18), 0) le) jel se s/s 2 12 
Tropidodipsas fasciata Gthr., 1858, Cat., 181.  Leptognathus philippii 
Jan, 1863, Sist., 101, — 1870, Icon., livr. 37, pl. 5, f. 1. L. fasciata 
Cope, 1868, Pr. Phil. Ac., 137. 
Mexico; Central America, 
LEPTOGNATHUS DUMERILII (?)...-. +--+ es. SircL taiNetie mevies “aieete 13 
Jan, 1863, Sist., 101, — 1870, Icon., livr. 37, pl. 5, f. 2. 
Mexico. 
LEPTOGNATHUS NEBULATUS.... - Bweiac doar 1.6.00 ole} 
Gthr., 1858, Cat., 177; Cope, 1868, Pr. Phil. Ac., 136. 
Coluber nebulatus Linn., 1754, Mus. Ad. Fridr., 32, pl. 24, f. 1, — 1758, 
Syst., I, 222, — 1766, Syst:, I, 383; Weigel, 1782, Abb. Hall. Nat. 
Ges., I, 32; Mus. Linck, 1783, I, 75; Gmel., 1788, Syst. Linn., I, 1107; 
Shaw, 1802, Zodl., III, 476; Latr., 1802, Rept., [V, 164; Daud., 1803, 
Rept., VI, 435; Merr., 1820, Syst., 104. Cerastes nebulatus Laur., 1768, 
Synops., 83. Sibon nebulatus Fitz., 1826, Neue Class., 60. Dipsas 
nebulata Boie, 1827, Isis, XX, 550; Schl., 1837, Essai, I, 162, II, 275, 
pl. 11, f. 14, 15; DeFil., 1840, Cat. Serp. Petalognathus nebulatus 
Dum.,.1852, Mem. Acad., XXIII, 466; D. & B., 1854, Erp., VII, 464; 
Martens, 1856, Mus. Berl., 27. 
Seba, 1734, Thesaur., I, 22, pl. 14, f. 4, — 1735, pl. 29, f. 3; 
Scheuch., 1735, Phys. Saer., IV, 1532, pl. 748, f.8; Linn., 1749, Amoen. 
Acad., I, 304; Daub., 1771, Dict. Anim., 657, 679; LaC., 1789, Quad. 
Ovip. & Serp., II, 271, 307; Bonnat., 1789, Ophiol. 36, pl. 20, f. 38; 
Merr., 1790, Beitr., I, 31, pl. 8; Bechst., 1802, Ueb. LaC. Nat., IV, 39, 
96, pl. 4, f. 2. 
Brazil to Mexico; West Indies (Gthr.) 
