592 NOKTH AMERICAN SNAKES COPE. 



Stejneger as a distinct species uiider tiie name of L. simplex. It has 

 foity rows ot scales, and there are no longitudinal stripes above, the 

 general color above being brownish drab, below whitish ; gastrosteges 

 23U, nrosteges 30. Eye encircled by 7-8 scales. These forms graduate 

 into the L. trivirgata, both in color and in number of scale rows. The 

 number of gastrosteges is larger, but I suspect that this character is 

 not constant. 



Lichanura orcuttii Stejueger. 

 Proc. U. S. Nat. Museum, 1889, p. iHJ ; 1891, p. 514. 



San Diego, California. 



CHARmiD^. 



CHARINA Gray. 



Gray, Cat. Snakes in the Brit. Mus., 1849, p. 84; Cope, Bull. U. S. Nat. Mus. 32, 1887, 

 p. 51; JVenona Bd. and Gird., Cat. Serp. N. Amer., 1853, p. 139; Bocourt, Miss. 

 Sci. Mexique, 1882, p. 511. Pscuderyx Jan, Arcbiv. f. Naturgcscli. 18G-.i, v. 1, p. 

 242 ; Eleucos Sistem, 1863, 19. 



Nostril between postnasal and prenasal, the latter confluent with the 

 iuternasal. Two pairs of prefrontals, a frontal, and rudimentary 

 parietals. Pupil vertical. Scales of body smooth. Tail short, obtuse, 

 not prehensile, and spurs exserted. 



Prenasal separated from internasal ; postnasal joiujng preocular ; prefrontal enter- 

 ing orbit ; oue superciliary ; superior labials 8-9 C. &>ac?i//oj).v. 



Postnasal plate separated from preocular ; prefrontal not entering orbit ; more than 

 one superciliary ; prenasal fused with iuteruasal ; superior labials 9-11.. C bottw 



Charina brachyops Cope. 



Proc. U. S. Nat. Mus., 1888, p. 88, PI. xxxvi. Fig. 2; Stejneger, loc. cit, 1890, 179. 

 Point Eeyes, California. 



Charina bottae Blv. 



Gray, Cat. Snakes in Brit. Mus., 1849, p. 113; Cope, Check List Batr. Rep. N. Am., 

 1875, 43; Tortrix hottw Blainville, Nouv, Ann. Mus. Hist. Nat., Paris, iii, 1834, p. 

 57 : I'seudenjx hottw Jan, 1. c. Fig. 1 ; JFenona plumbea et Isabella Bd. and Gird., 

 Cat. Serp. N. Amu., 1853, pp. 139-40; Jau, Icon. Gen. Oph., i, 3, ii, Fig. 2; Bo- 

 court Miss. Sci. Mex., 1S82, p. 512, pi. xxx, Fig. 7. 



The extraordinary variability of this species in the squamation of the 

 head may be exhibited in the following table : 



I. Internasals confluent with prefrontals. 



Loreal present; eye resting on labials; No. 4496, No. 9563. 



II. Internasals distinct. 



A. Rostral separating internasals on the middle line. 



Loreal present ; eye on labials on oue side ; separated by scales on the other;. 

 No. 4497. 

 AA. Rostral not separating internasals. 

 B. Eye resting on labials. 



Loreal present; Nos. 4497, 11691, 11789, 1258X, 

 Noloreals; No, 7299. 



