50 salamandridjB. 



Siredon gnwilis, Baird, Eep. U.S. Expl. Surv. xiii. part iv. p. 

 pi. 44. f. 2, is perhaps the larva of A. tenelroswrn. 



15. Amblystoma texanum. 



Salamandra texana, Matthes, Allgem. deutsche natarh. Zeitung 



1855, p. 266. 

 Amblystoma texanum, Baird, U.S. Mex. Bound. Surv. ii. Bept. p. 



pi. 35. f. 15 ; Cope, Proc. Ac. Philad. 1867, p. 204 ; Strauch, Sal 



p. 65. 



Palatine teeth forming an arched series between choanse, extend 

 to their anterior border, and not beyond their inner border 

 the lateral direction. Tongue small, (in young) plicae radiat 

 from behind. General proportions as in A. microstomum. H 

 oval, rather flattened and broad ; canthus rostralis somewhat mart 

 Skin quite smooth ; no parotoids ; gular fold slight ; fourt( 

 costal grooves. Above light brown, with a series of light sp 

 along upper part of sides ; these are small, and one between ei 

 pair of costal folds ; sides and belly yellow. Total length 95 mill: 



Texas. 



16. Amblystoma cingulatum. 



iVmblystoma cingulatum, Cope, R-oc. Ac. Philad. 1867, p. 2 

 Strauch, Salam, p. 66, 



Diflfers from A. microstomum in the shape of the snout, whicl 

 narrowed and projects beyond the mandible. Black, the under s 

 faces thi6kly speckled with grey ; a vertical narrow grey line pas 

 between every pair of costal grooves, and meets its fellow on 

 dorsal line, or bifurcates to meet a similar bifurcation in like manr 

 embracing an area; these narrow anuuli extend nearly as 

 forwards as the orbits, and surround the tail to its extremi 

 (Cope.) 



South Carolina. 



? a. Uniform blackish. New Orleans. Edw. Doubleday, Esq. [1 



17. Amblystoma microstomum. (Plate II. fig. 4.) 



Ambystoma porphjriitieum, Sallow. P-oc. Ac. Philad. 1856, p. 8 ( 



Salamandra porphyritica, Green). 

 Amblystoma microstomum, Cope, Proc. Ac. Philad. 1867, p. 2 



Strauch, Salam. p. 65. 



Palatine teeth forming a slightly angular series, with convej 

 forwards, entirely between the choanse. Tongue not very lai 

 oval, with a median longitudinal groove, from which the pi 

 radiate. Head very small, very convex, slightly longer than bro 

 snout very short, broad, rounded, without canthus rostralis ; lo^ 

 jaw projecting a little beyond the border of upper ; eyes moderi 

 Body cylindrical, much elongate, four and a half times the dista 

 from snout to gular fold. Limbs short, widely separated when 1 



