88 reptiles. 



1. Coluber ^sculapii. 



Anguis iEsculapio sacer, Gesner, Be Serpent, v. p. 44. Natrix 

 longissima, Laurenti, Syn. p. 74. Coluber flavescens, Gmelin, 

 Syst. Nat. p. 1115; Daud. Rept. vi. p. 272; Boie, Isis, 1827, 

 p. 536 ; Lenz, ScUangenhunde,^. 509 ; Schinz, Fauna der Schweiz, 

 i. p. 142 ; Bonap. Fauna It. pi. ; Lacep. Hist. Nat. Quadr. Ovip. 

 ii. p. 165; Bonnat. Ophiol. p. 43. Coluber aesculapii, Sturm's 

 Fauna, iii. Heft ii. f. a; Shaw,Zool. iii. p. 452; Latr. Rept. iv. 

 p. 54 ; Daud. Rept. vii. p. 30 ; Cuv. Regne An. ; Boie, I. c. ; Lenz, 

 I.e. p. 517; Schleg. Ess.pl.5.f. 1,2. Coluber scopoli, Merr. Tent. 

 p. 104 ; Risso, Hist. Nat. Eur. Merid. iii. p. 90. Zamenis aescu- 

 lapii, Wagl. Syst. Amph. p. 1 88. Calopeltis flavescens, Bonap. 

 Amph. Eur. p. 47. Elaphis aesculapii, Dum. Sf Bibr. p. 2/8. 



Scales in twenty-one or twenty-three rows, those on the pos- 

 terior part of the back so shghtly keeled as to be hardly visible ; 

 anal bifid ; upper labials eight, the fourth and fifth reaching the 

 orbit. Above uniform brownish grey, beneath yellowish ; on 

 each side of the neck a yellow or hghter spot. 



a. Adult. France. Presented by M. Verreaux. 



b. Adult. Europe. Presented by J. J. Bianconi. 



2. Coluber quadrivittatus. 



Chicken Snake, Bartr. Trav. in Florida, p. 275. Coluber 

 quadrivittatus, Holbr. N. Amer. Herpet. iii. pi. 20 ; Dekay, New 

 Yo7^k Fauna, iii. p. 41 . Scotophis quadrivittatus, Baird Sf Girard, 

 Catal. p. 80. Elaphis quadrivittatus, Dum. Si" Bibr. ip. 265. 



Body and tail slender Scales keeled, in twenty-seven rows. 

 Anal bifid ; eight upper labials, fourth and fifth coming into the 

 orbit. Dull yellowish, with four longitudinal brown stripes. 



a. Adult. N.America. Presented by Edward Doubleday, Esq. 



b. Adult. N. America. 



c. Adult. N. America. Presented by the College of Surgeons. 



3. Coluber quadrilineatus. 



Coluber quadrilineatus, Pallas, Zoogr. Rosso-Asiat. iii. p. 40. 

 Coluber cruentatus, Steven. Bull. Soc. Nat. Mosc. viii. pi. 9. 

 Coluber leopardinus, Bowap. Faun.Ital. pi. ; Schleg. Ess. ii. 169. 

 Calopeltis leopardinus, Bonap. Amph. Eur. p. 48 ; Nordmann, in 

 Voy. Russ. Merid. par A. Demidoff, Rept. pi. 6. f. 1 (young), 

 pi. 8 & 9. Ablabes quadrilineatus, Dum. 8f Bibr. vii. p. 319. 



Scales smooth, in twenty-five or twenty-seven rows; upper 

 labials eight, fourth and fifth coming into the orbit; anal bifid. 

 Above reddish brown, with four series of rounded or ovoid black- 



