290 COLtTBBID^. 



Head small, not distinct from neck ; eye small, with round pupil ; 

 nostril directed upwards, in a semidivided nasal ; no praeocular, 

 loreal and praefrontal entering the eye. Body cylindrical ; scales 

 smooth, without apical pits, in 19 rows ; ventrals roiulded. Tail 

 moderate or rather short ; subcaudals in two rows. 

 North America. 



1. Ahastor erjrthrograminus. 



Coluber erythrogrammus, Baud. Rept. vii. p. 93, pi. Ixxxiii. fig. 2 



(1808). 



seriatus, Hermann, Obs. Zool. p. 273 (1804). 



Homalopsis erythrogrammus, Boie, Isis, 1827, p. 651. 



plicatilis, var., Schley. Phys. Serp. ii. p. 356 (1837). 



Helicops erythrogrammus, Solbr. N. Am. Herp. iii. p. 107, pi. xxv. 



(1842). 

 Abastor erythrogrammus, Oray, Cut. p. 78 (1849) ; Baird S/- Gir. 



Cat. N. Am. Rept. p. 125 (1853). 

 Calopisma erythrogrammum, Bum. 4" Bibr. vii. p. 337 (1854) ; Jan, 



Arch. Zool. Anat. Rhys. iii. 1865, p. 243, and Icon. Gin. 29, pi. iv. 



fig. 2, & pi. V. fig. 1 (1868). 

 Hydrops erythrogrammus, Garm. N.-Am. Rept. p. 35 (1883) ; H. 



Garm. Bull, lllin. Lab. iii. 1892, p. 280. 



Rostral large, broader than deep, the portion visible from above 

 nearly as long as its distance from the frontal ; internasals broader 

 than long, much shorter than the preefrontals ; frontal once and 

 two thirds to twice as long as broad, longer than its distance from 

 the end of the snout, a little shorter than the parietals ; loreal at 

 least twice as long as deep ; two postooulars ; temporals 1 + 2 ; 

 seven (rarely eight) upper labials, third and fourth (or fourth and 

 fifth) entering the eye ; four lower labials in contact with the ante- 

 rior chin-shields, which are a little longer than the posterior. 

 Scales in 19 rows. Ventrals 157-1 85 ; anal divided ; subcaudals 

 37-65. Black above, with three red stripes ; the two or three 

 lower rows of scales yellow or reddish ; lower parts yellowish or 

 red, with two or three regular series of roundish black spots. 



Total length 900 millim. ; tail 120. 



Mississippi Valley and eastwards. 



a-e. S (V. 166 ; 0. 46), ? (V. 178 ; N. America. Lord AmpthiU [P.]. 



C. 40), hgr. (V. 165 ; C. 47), & 



yg. (V. 166, 157; 0.47,51). 



/. Yg. (V. 166; 0. 49). N. America. Mrs. Phillips [P.]. 



g. Yg. (V. 182 ; 0. 37). N. America. 



A. Yg. (V. 167; 0.50). Marion Co., A. Erwin Brown, 



Florida. Esq. [P.]. 



108. PARANCIA. 



Homalopsis, part., Schleg. Rhys. Serp. ii. p. 297 (1837). 



Farancia, Gray, Zool. Misc. p. 68 (1842), and Cat. Sn. p. 74 (1849j ; 



Baird Sr Gir. Cat. N. Am. Rept. p. 123 (1853) ; Cope, Proc. U.S. 



Nat. Mus. xiv. 1892, p. 605. 

 Calopisma, ^axt., Bum. ^ Bibr. Erp. G6n. vii. p. 3.36 (1854); Jan, 



Arch. Zool. Anat. Rhys. iii. 1865, p. 241. 



