SA PROCEEDINGS OF THE ACADEMY OF [Jau., 



A specimen in my collection, from Bay St. Louis, ]Miss., 186 

 mm. long (tail 27), has seven upper labial.s on one side; veutrals 

 117; subcaudals 29. 



Hab. — Southern Illinois to Texas. 



FICIMIA Gray. 



Cat. Snakes, 80 (1849); Gyalopium Cope, L c, 603, and Rep. Xat. 

 Mus., 947 ; Ficimia BouL, I. c, II, 270. 



Maxillary teeth smooth, equal; rostral enters between internasals 

 and prefrontals, its upper border projecting; two internasals; one 

 nasal, half divided, its anterior portion usually fused with the first 

 labial; no loieal; one preocular; scales smooth, with pits, in 17 

 rows; anal divided; size moderate; head not very distinct. 



Hab. — Southwestern United States and INIexico. 



Ticimia cana Cope. 



Gyalopium canum Cope, Proc. Acad. Pliilu., 1860, p. 243; I. c, 603, 

 and Rep. Nat. Mus., 917 ; F. canaBoxA., I. c, II, 272. 



Rostral pointed behind, not iu contact with the frontal; inter- 

 nasals small; nasal fused with the first labial, with a groove down- 

 ward and backward from the nostril; no loreal, prefrontals reaching 

 labials; oculars 1-2; temporals 1-2; upper labials 7; scales in 17 

 rows; ventrals 130-131; subcaudals 28. Length about 205 mm. 

 (tail 28). 



Eeddish or yellowish, with brown, dark-edged cross-bands, 

 about thirty in number, more or less broken into spots on the sides; 

 belly yellowish white; a brown band across the head in front of 

 the orbits, beginning on the labials, and another across the 

 parietals. 



Hab. — Western Texas to Arizona. 



CHILOMENISCUS Cope. 



Proc. Acad. Phila., 1860, 339 ; I. c, 593, and Rep. Xat. :\Ius., 948 ; 

 BouL, I. c, II, 272. 



Maxillary teeth smooth, subequal, the posterior sometimes a little 

 enlarged; rostral prominent and separating llie internasals; no 

 loreal; one nasal, fused with the iuternasal; one preocular; scales 

 smooth, with pits, in 13 rows; anal divided; size small; head not 

 distinct. 



Hab. — Nevada to Sonora; Lower California. 



