18 REPTILES. 



Carphophis, Dum. §• Bibr.v'n. p. 131. Celuta, Baird, Girard 

 Catal. p. 129. Brachyorrhos, sp., Holbr. N. Amer. Herpet. iii. 

 j). 115. Calamaria, sp., Schley. Ess. ii. p. 31. Coluber, sp., 

 Say, Harlan, Storer. 



1. Carphophis amcena. 



Coluber amcenus, Say, Journ. Ac. Nat. Sc. Phil. 1825, p. 237 ; 

 Harlan, ibid. 1827, p. 355, and Med. Phys. Res. 1835, p. 118 ; 

 Storer, Report, p. 226. Calamaria amoena, Schley. Ess. pi. 1. 

 f. 19. 20. Brachyorrhos amoenus, Holbr. N. Amer. Herpet. iii. 

 pi. 27. Celuta amoena, Baird, Girard Catal. p 129. Carph- 

 ophis amcena, Dum. 8f Bibr. p. 131. 



Above brown, beneath red (in spirits whitish). 



a. Adult. Delaware. Presented by Henry Doubleday, Esq. 



b. Adult. Pennsylvania. From Mr. Cuming's Collection. 



c. Half-grown. North America. Presented by Sir R. Mur- 



chison. 



d. Adult : bad state. North America. 



e. Half-grow n. North America. 



c 



14. Homalocranion, Bum. <y Bibr. 



Body and tail moderate; head depressed, with Hat crown; 

 two pairs of frontal shields, nearly equal in size ; two nasals, 

 nostril between ; loreal none (in one species present) ; one mode- 

 rate anterior, one or two posterior orbitals. Scales smooth, 

 rhomboidal, in fifteen rows; subcaudals two-rowed. Teeth 

 equal in length, posterior maxillary teeth grooved. Central and 

 South America. 



Homalocranion, Dum. 8f Bibr. vii. p. 855. Calamaria, sp., 

 Schley. Ess. ii. p. 38,47 ; Cloelia, sp., Wayl. Syst Amph. p. 187. 

 Lycodon, sp., Boie, lsis, 1827, p. 526. Elaps, sp.. Coluber, sp.. 

 auct. prior. 



1. Homalocranion melanocephalum. 



Coluber melanocephalus, Linn. Mus. Ad. Fried, t. 15. f. 2, and 

 Syst. Nat. i. |i. 378 ; Daubent. Quadr. Ovip. Serp. p. 685 ; Lacep. 

 Quadr. drip. Serp. ii. p. 293 ; Bonnat. Uphiol. p. 34 ; Shine, 

 Zool. iii. p. 190; Daud. liept. vi. p. 367; Men: Tent. p. 110. 

 Slaps melanocephalus, Wagl.fySpix, Nov. Serp. Bras. t. 26. f. 1 . 

 Lvcodon melanocephalum, Boie, I. c. Cladia melanocephala, 

 Wayl. Syst. p. 1^7- Calamaria melanocephala, Schley. Ess, pi. 1. 

 f. 30. Homalocranion melanocephalum, Dam. 8f Bibr. |>. S59. 



