1886.] 5-*° [Cope. 



The color of the typical specimen in alcohol is purplish hrown above 

 and paler below. There are numerous not well-defined whitish spots on 

 the sides and a few on the belly, and there are some very faint and deli- 

 cate gray lines across the posterior part of the back. The tail is densely 

 speckled with gray on the sides, and delicate gray lines cross the upper 

 surface of thetail in a reticulate manner. The limbs are paler than the 

 back, and the digits are cross-banded with whitish. 



The habitat of this species is unknown. The only specimen was found 

 in a jar with a specimen of Diemyetylus torosua, and one of Rana tern- 

 poraria, the former Californian, the latter Palsearctic. 



Amblystoma annulatum Cope, sp. nov. 



The largest species of the group of the A. microstomum, and resembling 

 that species rather than the A. cingulatum. However it approaches the 

 last-named species in the form and length of its tail, but exceeds that and 

 all the other species of Group V in the length of that part of the body. 



The muzzle is very short, and the head is not distinguished from the 

 neck. The legs are short, and when appressed to the sides are separated 

 by a space of three and parts of two other intercostal spaces, equal to four 

 spaces. The tail is in section cylindric at base, and widely oval to near 

 the extremity, where it is more narrowly oval. It is not angulate and has 

 no dermal margin on the middle line above or below. Its length exceeds 

 that of the head and body by the length of the anterior foot, and it may 

 have been longer, as the extremity is injured. 



The head is short, and the width enters the length to the groin six and 

 a quarter times. The front is convex to the upper lip, in profile, and trans- 

 versely between the orbits. Tlie parietal region is very convex trans- 

 versely. The width between the canthi oculorum behind exceeds the 

 length from the same point to the end of the muzzle. The nostrils pres- 

 ent anteriorly, and they are not quite so close together as in A. lepturum, 

 as the distance between them measures two-thirds the width between the 

 eyelids. The vomerine teeth form two transverse fasciculi of several 

 rows of teeth each, between the choanse, convex forwards, and separated 

 on the middle line by a very short interval. 



The skin is perfectly smooth, there is a postgular fold, and the sides 

 are crossed by thirteen folds with space enough at the axilla for a four- 

 teenth. The tail is also very disti»ctly annulate-grooved. I count thirty- 

 one grooves behind the femora, and the injured extremity is not grooved. 

 Indistinct grooves are apparent on the tails of several of the species of 

 Amblystoma. There are no rows of mucous pores on the head or body 

 of this species, nor accumulations of crypts on the head, body or tail. 



The palm is wide, and the fingers not long, though of unequal length. 

 The lengths of the fingers, beginning with the shortest, are 2-5-3-4, and 

 their phalanges number 2-2-3-2. The toes of the hinder foot have, in 

 order of length, 1-5-2-3-4, and of phalanges, 2-2-3-4-2. 



