SYSTEMATIC LIST AND SYNONYMY. 133 



6 P H I D I A —Continued. 



vertebralbroailer. Ventrals 20(> to "271. Snlic:iiul;ils 36 to 52, entire. 

 Yellciwisli, reddisli, ur gi-eyish liniwn, liglit to dark, punctulate and 

 clouded with darlcer, with inegular transverse badly defined bands of 

 darker, which are often cotiflueiit intu more or less distinct longitudinal 

 bands on the sides of tlie 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 Kico. Keinhardt's specimens had 

 264 to 271 veutrals, and 67 to 69 subcau<lals. The tail is shorter in the 

 adult, and commonly the tip is imperfect. 



West Indies; (?) Central America; (?) Mexico. 



ACACOPHIDIA. (Non-venomous Snakes.) n 



COLUBRIDAE H 



Bonap., 1831, Saggio, etc. 



DIPSADINAE 11 



Leptognatiius 12 



Dum., 1852, Mem. Acad., 23, p. 467; D. & B., 1854, Erp., VII, 473; 

 Gthr., 1858, Cat, 177. 

 Leptognatiius fasciatus 12 



Tropidod'qmm fascinta Gthr., 1S5S, Cat., 181. Li'ptngnathus ■pUUppii 



Jan, 1863, Sist., 101, — 1870, Icon., livr. 37, pi. 5,1". 1. L. fasciata 



Cope, 180S, Pr. Phil. Ac, 137. 



Mexico; Central America. 



Leptogxatiii's dl'.merilii (?) 13 



Jan, 1863, Sist., 101, — 1870, Icon., livr. 37, pi. 5, f. 2. 



Jlexico. 



LEPTOGXATnUS NEBULATUS 13 



Gthr., 1858, Cat, 177; Cope, 1868, Pr. Phil. Ac, 136. 



Coluber nebxdalus Linn., 1754, Mus. Ad. Fridr., 32, pi. 24, f. 1, — 1758, 



Syst., I, 222, — 1766, Sysf., I, 383; Weigel, 1782, Abb. Hall. Nat. 



Ges., I, 32; Mus. Linck, 1783, I, 75; Gmel., 1788, Syst Linn., 'I, 1107; 



Shaw, 1802, Zoijl., Ill, 476; Latr., 1802, Kept., IV, 164; Baud., 1803, 



Kept., VI, 435; Merr., 1820, Syst., 104. Cerastes wbulafm Laur., 1768, 



Synops., 83. Sibon nebulatm Fitz., 1826, Neue Class., 60. Dipsas 



nebulata Boie, 1827, Isis, XX, 550; Sclil., 1837, Essai, I, 162, II, 275, 



pi. 11, f. 14, 15; DeFil., 1840, Cat. Serp. Peialorjnathiis nfbuhtus 



Dum., 1852, Mem. Acad., XXIII, 466; D. & B., 1854, Erp., VII, 464; 



Martens, 1856, Mus. Berl., 27. 



Seba, 1734, Thesaur., I, 22, pi. 14, f. 4, — 1735, pi. 29, f. 3; 



Scheuch., 1735, Phys. Sacr., IV, 15.32, pi. 748, f. 8; Linn., 1749, Amoen. 



Acad., I, 304; Daub., 1771, Diet. Anim., 657, 679; LaC, 1789, Quad. 



Ovip. & Serp., II, 271, 307; Bonnat., 1789, Ophiol. 36, pi. 20, f. 33; 



Merr., 1790, Beitr., I, 31, pi. 8; Bechst., 1802, Ueb. LaC. Nat, PV, 39, 



96, pi. 4, f. 2. 



Brazil to Mexico; West Indies (Gthr.) 



