166 OPHIDIA. 
PHILODRYAS. 
Philodryas, Wagl. Nat. Syst. Amph. p. 185 (1830) ; Giinth. Cat. Col. Sn. p. 123. 
Dryophylaz, Dum. & Bibr. Erpét. vii. p. 1103. 
1. Philodryas putnami. 
Dromicus putnami, Jan, Iconogr. Ophid. xxiv. t. 6. fig. 3. 
Hab. Mexico, Jalisco (Jan), La Cumbre de los Arrastrados, alt. 8590 feet (A. C. Buller). 
This snake proves to be opisthoglyph. 
ERYTHROLAMPRUS. 
Erythrolamprus, Boie, Isis, xix. p. 981 (1826). 
Body of moderate dimensions, subcylindrical. Head distinct from neck; eye. of 
moderate size, with the pupil round. ‘Two nasals; a loreal. Scales smooth, in fifteen 
rows. Anal divided. Posterior maxillary tooth grooved. 
1. Erythrolamprus zsculapil. 
Coluber esculapii, Linn. Mus. Ad. Fred. p. 29, t. 11. fig. 2. 
Erythrolamprus esculapii, Boie, Isis, xx. p. 588 (1827) ; Dum. & Bibr. Erpét. vii. p. 845. 
Coluber venustissimus, Wied, Reise Brasil. ii. p. 75; and Abbild. Nat. Bras., Rept. t. 39. 
Erythrolamprus venustissimus, Boie, Isis, xix. p. 981 (1826) ; Dum. & Bibr. Erpét. vii. p. 851, t. 74; 
Giinth. Cat. Col. Sn. p. 47; Cope, Journ. Ac. N. Se. Phil. viii. p. 141 (1875); Bocourt, 
Miss. Sc. Mex., Rept. p. 658, t. 38. figg. 4, 4 ae. 
Coronella venustissima, Schleg. Ess. 11. p. 53. 
Erythrolamprus intricatus, Dum. & Bibr. Erpét. vi. p. 855. 
Hab. 1 Mexico (Boucard); Nicaracua, Matagalpa (Rothschuh), Chontales Mines (Riz) ; 
Costa Rica, Irazu (Rogers); Panama, Chiriqui (Champion).—TropicaL SovTa 
AMERICA. 
One ante-, two postoculars. Red, with black rings, the rings either single or sub- 
divided, or in pairs. 
J have suspected for some time that, in species normally opisthoglyphous, specimens 
may occur in which the groove of the posterior maxillary tooth is obsolete or entirely 
absent. Such is undoubtedly the case in the three specimens of Erythrolamprus from 
Nicaragua which I have examined. ‘These specimens were collected in two distinct 
localities by different collectors. 
OXYRRHOPUS. 
Oxyrrhopus, Wagl. Syst. Amph. p. 185 (18380). 
Cloelia sp. et Erythrolamprus sp., Wagl. Syst. Amph. p. 187 (1830). 
Brachyruton et Oxyrrhopus, Dum. & Bibr. Erpét. vii. pp. 1002, 1011 (1854). 
Oxyrhopus, Giinth. Cat. Col. Sn. p. 188 (1858). 
