50 CADUCIBRANCHIATA. 



Id. Amblystoma platinenum, Cope. 



Color plumbeous, paler beneath, with numerous in- 

 distinct whitish blotches ; body elongated ; head oval ; 

 muzzle rounded; nares equidistant; dermal cryptae 

 present in the parotid region ; breadth of head five-sev- 

 enths the distance from muzzle to cervical fold ; vomer- 

 ine teeth in three patches ; angle of the eye anterior to 

 that of the mouth; mucous pores in series along super- 

 ciliary, also behind and below the orbit, and in the parot- 

 id region. 



Habitat Northern Ohio. 



17. Amblystoma paroticum, Baird. 



Color reddish brown, paler beneath; immaculate; 

 body strong, rounded and depressed ; tail oval, tapering 

 towards the tip, compressed, edge below sharp ; head 

 depressed; nares about equidistant; vomerine teeth in 

 four groups, with angle anterior; tongue moderate, 



