SNAKES. 41 



Description. — Body moderate; tail moderate, thin, distinct 

 from trunk ; head rather broad and obtuse ; shields of crown 

 regular, proportionate ; two nasals, one loreal, one ante-orbital, 

 raised on the surface of the head, but not reaching the vertical ; 

 two posterior oculars ; eight upper labials, fourth and fifth 

 narrow, and coming into the orbit; one front temporal shield 

 in contact with both postoculars ; two other ones behind ; first 

 pair of lower labials forming a suture behind the terminal one. 

 Scales moderate, rounded behind, in seventeen rows; anal bifid. 

 Above nearly uniform olive, some scales with black tips or black- 

 edged ; beneath uniform yellowish. Longer maxillary teeth not 

 grooved, in a continuous row with the anterior ones. Length of 

 head f " ; length of tail 5" ; total length 27|". 



16. CORONELLA SAYI. 



Herpetodryas gaetulus, Schleg. Ess. ii. p. 198. Coluber savi, 

 Dekay, New York Fauna, Rept. p. 41. Coronella sayi, Holbr. 

 N. Amer. Herpet. iii. pi. 22; Bum. 8f Bibr. vii. p. 619. Ophibolus 

 sayi, Baird 4' Girard, Catal. p. 84 ; and in Marcy, Explor. of 

 the Red River, pi. 7- 



Scales in twenty-one rows; anal entire. Above black, with 

 numerous round or linear small yellow spots; beneath yellowish 

 white, with large irregular blotches of black. 



a. Adult. Central America. Presented by Mrs. Drummond. 



b, c. Adult. Texas. From Mr. Brandt's Collection. 



d. Adult. Louisiana. 



e. Adult. New Orleans. From M. Salle's Collection. 



f,g. Half-grown. New Orleans. From M. Salle's Collection. 

 h. Skin of a very large specimen (6 feet long). North America. 

 Old Collection. 



17- COROXELLA DOLIATA. 



Coluber doliatus, Linn. Syst. Nat. p. 379; Harlan, Journ. 

 Acad. Nat. Sc. Philad. v. p. .'362, and Med. Phys. Res. 1835, 

 p. 125; Lacep, Quadr. Ovip. Serp. ii. p. 294 ; Latr. Rept.iv. 

 p. 126; Baud. Rept. vii. p. 74. Coronella doliata, Boie, Isis, 

 1827, p. 539 ; Holbr. N. Amer. Herpet. t. 2-1 ; Bum. $ Bibr. vii. 

 ]). 62 1 . Ophibolus doliatus and O. gentilis, Baird fy Girard, Catal. 

 pp. 89, 90; and in Marcy, Explor. of the Red River, pi. 8. 



Red (in spirits whitish), with twenty to twenty-five pairs of 

 black cross bands. Anal entire. Scales in twenty-one to twenty- 

 three rows. 



