tKOTEIDiE. S3 



acuminate ; nostrils small, close to the tip of the snout, near the 

 labial border ; eyes very small ; upper and lower labial lobes much 

 developed. Limbs extremely small ; digits 3 — 3. Tail short, com- 

 pressed, keeled above. SMn smooth, slimy. Uniform blackish 

 brown, somewhat lighter beneath. 



Total length 755 mUlim. 



' From snout to cloaca 575 „ 



Head 40 „ 



Width of head 31 „ 



Fore limb 13 „ 



Hind limb 21 „ 



TaU 180 „ 



Mississippi and Louisiana. 



a. Adult. Louisiana. 



b. Hgr. Florida. Dr. B. Harlam [P.]. 



c. Adult. Mexico (?). 



d. Young. ? 



2. AmpMuma means. 



Amphiuma means, Graj/, Cat. p. 55. 

 Amphiuma means, Garden, I. c. ; HoJbr. N. Amer. Herp. v. p. 89, 



pi. 30 ; Bum. Sf BOr. p. 203. 

 Chrysodonta larvseformia, Mitch. I. c. 

 Amphiuma means s. didactyla, Cuv. Mim. Mus. xiv. p. 4, pi. 1 . 



didactyla, Wagl. Syst. Amph. p. 209. 



Sirenoides didactylum, Mtz. I. e. 



Digits 2 — 2. Otherwise as in the preceding. 



S.E. United States, from North Carolina to Mississippi. 



ffl-c. Hgr. & yg, N. America. T. Bell, Esq. [P.]. 



Fam. 3. PROTEID^. 



SirenidsB, part., Chay, Ann. Phil. 1825. 



Proteidese, part., Tschudi, Classif. d. Batr. 



Proteidse, Gray, Cat. Batr. Chad. 



Tr^matoderes prot6ides, part.,i)M»i. ^ 5i6r. Erp. G&n, ix. 



Proteidse, Ccype, Journ. Ac. Philad. (2) vi. 1866. 



Ichthyodea, part., Strauch, Rev. d. Salam. 



Two genera : — 



Digits 4 — 4 ; eyes exposed 1. Necturus, p. .83. 



Digits 3 — 2 ; eyes hidden 2. Proteus, p. 85. 



1. NECTURUS. 



Nectm^us, JRaJm. in de Blainv. Journ. Phys. Ixxxviii. (1819), p. 417 j 

 Wagl. Syst. Amph. p. 210 ; Gray, Cat. p. 66. 



g2 



