142 BULLETIN 34, UNITED STATES NATIONAL MUSEUM. 



specimens of precisely similar character from uortliern localities. Some 

 soutlieni specimens appeared to have the digits less webbed than usual. 

 In certain specimens from South Carolina described by Hallowell the 

 white spots fail to exhibit themselves on the sides, the color being 

 everywhere a deep black, the gular region, lips, palms, and soles being 

 of a clear yellowish-brown. This constitutes a "well-marked color vari- 

 ety, but no difterences of a higher value can be found. There are four 

 specimens of it in the Museum of the Philadelphia Academy. 



The range of this species is from Texas to Maine. It is recorded by 

 Packard as from Okok, Labrador (Mem. Boston Soc. Nat. Hist., 1868), 

 but I suspect that this animal will be found to be the Amblystoma 

 jeffersonianum var. laterale, which has, with the A. j. platineum, the 

 highest northern range. It appears to be common in Massachusetts 

 and Maine. 



This salamander is entirely terrestrial in its habits. It is found much 

 more abundantly in the mountainous districts, and haunts rocky locali- 

 ties as well as forest mold and fallen logs. I have found it more 

 abundant in Pennsylvania and ISTew York than in southwest Virginia. 

 1 believe that it prefers a cool climate; in the flat and warmer tertiary 

 and cretaceous eastern coast region it is rare. In southern Pennsyl- 

 vania I have only found it on the northern exposure of the south Ches- 

 ter Valley hill, never on the southern exposure or other part of the 

 north hill. In southwest Virginia it is more common in caves than on 

 the surface. 



Measurements, in inches. 



Length, measured along asis of 

 body: 



From suoiit to gape 31 



From snout to gular fold 66 



From snout to armpit 90 



From snout to groin 2.50 



From snout to behind anus 3. 00 



From snout to end of tail 5. 90 



Tail 2.90 



Head : 



Width of head 48 



Width of tongue 40 



Leugth'of orbit 17 



Distance between'eyes anteriorly . 27 

 Distance between outer nostrils . 17 

 Distance between inner nostrils . 15 



Body: 



Circumference of belly 1.60 



Distance between armpit and 

 groin 



Tail: 



Height of tail where highest. .. 

 Breadth of tail where highest.. 



Limbs : 



Free portion of longest finger.. 

 From elbow to tip of longest 



finger 



Free portion of longest toe 16 



From knee to tip of longest toe. . 55 

 Distance between outstretched 

 toes 1.85 



1.00 



.32 

 .32 



.13 



.50 



