13. AMBLYSTOMA. 



41 



8. $. 



Total length 90 94 millim. 



From snout to cloaca .... 49 55 „ 



Head 12 13 „ 



Width of head 9 11 „ 



Fore limb 14 77 „ 



Hind limb 16 19 „ 



Tail 41 39 „ 



United States, from Pennsylvania to Florida, to Wisconsin, and to 

 Texas. 



a. 8 • New York. 



b. $. Ohio. 

 c-d. § & % r - Georgia. 



e-f. 2 • N. America. Dr. MacMurtrie [P.]. 



g-h. S . N.America. Prof. St. George Mivart [P.]. 



i. 2 • N". America. Royal College of Surgeons [P.]. 



k-l, m, n, o. 8 2- N. America. 



p. Skeleton. New York. 



3. Amblystoma pnnctatum. 



Ambystoma carolinaa, Gray, Cat. p. 35. 

 Lacerta punctata, Linn. 8. N. i. p. 370. 



maculata, Shaw, Zool. iii. p. 304. 



Salamandra venenosa (Bart.), Daud. Rept. viii. p. 229; Holbr. N. 



Amer. Iferp. v. p. 67, pi. 22. 

 Lacerta subviolacea, Barton, Amer. Phil. Trans, vi. p. 108, pi. 4. 



f. 0. 

 Salamandra subviolacea, Harlan, Journ. Ac. Philad. v. p. 317 ; Dekay, 



N. Y. Faun., Rept. p. 74, pi. 2. f. 36. 

 Ambystoma subviolaceum, Tschudi, Batr. p. 92. 



punctata, Baird, Jonrn. Ac. Philad. (2) i. p. 283. 



Ambyostoma carolinse, Gray, Proc. Zool. Soc. 1853, p. 11. 



Ambystoma argus, Dum. § Bibr. p. 103. 



Amblystoma punctatum, Cope, Proc. Ac. Philad. 1867, p. 175 ; 



Strauch, Salam. p. 63. 



Palatine teeth in three series ; median series generally in a 

 straight line or a double arc, the convexity of which is turned 

 backwards, sometimes forming a single arc ; lateral series a little 

 in advance of the central and not quite half its length, sepa- 

 rated from the latter by a slight interval. Tongue large, plicae 

 radiating from behind. Head depressed, a little longer than broad ; 

 greatest width at angles of jaws ; snout broad, rounded, without 

 canthus rostralis ; eyes moderate. Body stout, cylindrical, twice 

 and two thirds to thrice and one fourth the distance from tip of snout 

 to gular fold. Limbs moderate ; adpressed against the body, the 

 median fingers and toes meet in the male, remain generally separated 

 in the female ; fingers and toes not very thick, depressed ; carpal 

 and tarsal tubercles scarcely distinct. Tail about as long as head 

 and body, compressed, pointed, not keeled. Skin shining, more or 

 less pitted ; parotoids rather distinct ; a vertical groove behind the 



