676 NORTH AMERICAN SNAKED COPE. 



Haldea striatula Liiiii. 



Bd. and Gird., Cat. 1853, 1-22; Cope, Check List P.atr. Kept. N. Amer., 1875, p. 35; 

 Coluber striatal us Liuu., Syst. Nat., i, 176(5, p. 375 ; Gni. Linn. Syst. Nat., Ed. xiii. 

 1788, 1887 ; Ilarlau, Journ. Acad., Phila., V, 1827, p. 354 ; Calamaria striatula Scblej;. 

 Ess. s. PhysioQ. Sevpt., 1837, p. 43; Holbrook, N. Amer. Herp., in, 1842, 123, PI. 

 XXIX ; Conocephalm striatulus Dum. Bibr., vii, 1854, p. 140 ; Jau, Icon. Gen. Ofid., 

 I, p. 12, iii, Fig. 1. 



North America ; Austroripariau regiou. 



ERYTHROLAMPRUS Boie. 



Isis von Oken, 182f5, p. 981 ; Cope, Bull. U. S. Nat. Mas. 32, 1887, p. 55; Couiophaites 

 Hallow., Proc. Acad. Phila., 1860, p. 484 ; Cope, loc. cit., 1860, p. 248 ; Glaplujroplus 

 Jan, Eleuco List. Ophid. 1863, p. 54. 



Posterior maxillary teeth elongate, grooved. Cephalic, shields normal ; 

 two nasals, loreal present. Scales smooth, without fossa. Anal and 

 subcaudal scuta divided. Pupil round. 



The type of this genus is found tbrougliout troi)ical America ( E. ve- 

 nustissimus L.), and a second [U. dromimformis Pet.), is found on the Pa- 

 cific slope of the Andes near the equator. The remaining nine species 

 belong to Central America and Mexico, and one of tbem has been taken 

 in the United States on the lower liio Grande. The typical species is 

 red with black annuli in coloration, while most of the remainder Jire 

 striped. The transition is effected by the E. laterifius Cope, which is a 

 red species with black head and neck. The only species which enters 

 our limits is characterized as follows : 



Scales in nineteen rows; superior labials eight; one preocular ; light brown with 

 blackish sides and dorsal stripe ; below red, unspotted E. imperialis. 



Erythrolaniprus imperialis Bd. and Gird. 



Cope, Bull. U.S. Nat. Mus. 32, 1887, p. 77; TwniopMs imperialis Bd. and Gird., U. S. 

 Mex. Bound. Surv., ii, 1859, 23, PI. xix. Fig. 1 ; Coniopliaiu's imperialis Cope, Proc. 

 Acad. Phila., 1861, p. 74 ; Tachymeuis nuj^eriah'sGarniau, Mem. Mus. Comp. Zool. 

 Cambr.,viii, 1883, p. 154. 



Besides Cameron County, southwest Texas, this species has been found 

 near Tuxpan by Lincecum, and at Jicalepec, Vera Cruz, by the Comisiou 

 Geogrdfica of Mexico. 



SIBON Fitziuger. 



»^ 



Neue Class, d. Reptilien, 1826, p. 29. Heterurus Dum. Bibr., Erp. Gen., vii, 18.54, p. 

 1170. Leptodira Giiuther, Cat. Col. Suakcs, Brit. Mus., 1858, p. 165 (e nom. uud. 

 Fitzingerii, 1843). Eteirodipsas Jan, Eleuco Sist. d. Ofidi, 1863, p. 105. 



An elongate grooved tooth on the posterior part of the maxillary 

 bone ; other teeth subequal. Head plates normal ; one loreal. Preanal 

 and subcaudal scuta double ; scales smooth, with two apical pits. 

 Pupil vertical. 



