REPTILES 213 



S. semiannulata B. & G. Length 230 mm.; tail 40 mm.; color ashen 

 or pink, crossed by about 20 black half rings, or uniform; belly white: 

 Idaho to southeastern California, Kansas and Texas. 



S. occipitalis (Hollowell). Length 323 mm.; tail 53 mm.; color 

 milk white above, with 34 transverse black bands; belly white: Colorado 

 to southeastern California. 



21. Cemophora Cope. Small, harmless snakes with smooth scales 

 in 19 rows; ventrals about 170; upper labials 6: i species. 



C. coccinea (Blumenbach) . Length 410 mm.; tail 60 mm.; color 

 scarlet, with about 20 pairs of black cross bands, each pair enclosing a 

 yellow band; belly white or yellow; top of head red or orange: southern 

 and Gulf States from Maryland to the Mississippi; common in Florida; 

 very similar in appearance to the poisonous coral snakes, but differing 

 from them in having a plain, unblotched belly; similar also to the 

 scarlet king-snake which differs from it in that its rings nearly encircle 

 the body. 



22. Rhinocheilus Baird & Girard. Small snakes with smooth 

 scales in 2}, rows and undivided subcaudals: i species. 



R. lecontei B. and G. Length 600 mm. ; tail 85 mm. ; color black and 

 red, there being 33 large square black blotches alternating with red 

 bands; belly white: Kansas and Idaho to California. 



23. Hypsiglena Cope. Small snakes with smooth scales in 21 

 rows; rear teeth in upper jaw enlarged; pupil vertical: i species. 



H. ochrorhynchus Cope. Length 675 mm.; tail 75 mm.; color gray 

 with about 48 large brown spots on the body and 2 alternating series on 

 the tail; 2 lateral series; ventrals 167; subcaudals 55: western Texas to 

 Idaho and southeastern California. 



24. Ficimia Gray. Small, stout snakes with an acute rostral plate, 

 the anterior end of which is turned up; no loreal plate; scales smooth, in 

 17 rows; anal plate divided; pupil round: 2 species. 



F. cana (Cope). Length 188 mm.; tail 23 mm.; color brownish 

 yellow, with 30 cross bands; belly whitish, unspotted; upper labials 7: 

 western Texas to Arizona. 



25. Chilomeniscus Cope. Small, stout burrowing snakes with a 

 prominent rounded, flattened snout; scales smooth, in 13 rows; anal 

 plate divided; no loreal plate: i species. 



C. ductus Cope. Length 120 mm.; tail 16 mm.; color red or 

 orange, with 21 black cross bars in front of the anus; belly white: 

 southern Arizona and California. 



26. 'NsLtrix Lsiurenti {Tropidonotus Kuhl). Water snakes. Thick- 

 bodied non-poisonous snakes with a distinct head and with keeled 



