ii:M 



110 IIULLIM'IN :{l, UNITKI) STATlvS NATIONAL MI'SKUM. 



round their inner margins to a point Ju.st in advance of their anterior, 

 then turn abruptly inwards and slightly l)a(;k\var.ls, making a right 

 an-lo with their previous course. They converge, but do i-ot unite. 



lo ue large ; as broad as long. CJular fold well n.arked ; parotoid 



.rroovcMiot visible, perhaps accMdentally. It is dilllcult, as in the C. tent: 

 hrosus, to distinguish the costal folds. There are not more than twelve. 



The tail is short and stout; its upper edge is much coini.ressed, as is 

 the i)osterior half; its glandular structures are much less developed 

 than in other species of Amblystoma, the erypts of the erest being 

 minute and globular. Length of tail e(pial from its origin (posterior 

 margin vent) to pcsterior outline of sternum. 



Tlie extremities are very st()nt,.iust meeting when laid along the side. 

 The palms and soles are very wide, and the toes short and llattened. 

 They stand, as regards length, behind, 3, 4, 1>, 5, 1 ; before, 3, 2, 4, 1. 



1 4 Q 6 



Kii;. 2;t. Vhiiiiiliiildi- alcrriiiiiii.: No. W^i'2 ; raliiral size; Kinky MuiiiituiuH. 



The color is black above, lead colored below. 



Measinrmnitn. 



Ill 



Length from HiKiiit to "fapo (lint projection) 



Lciigtli I'roiii snout to };iil:ir loltl 



Len};tli iVoni .snout to axilla (• 



LiMijith from snout to j;roin 



Lcni^tli from siniut to end of vent 



Lcnjjth from snout to muI of tail (i 



Width of head 



Width of tonyue (( 



Width between eyes anteriorly t) 



Width between nostrils 



Width between inner nostrils (t 



Width from eye to nor.tril 



Circuniferenee of belly 



Greatest lieijjht of tail 



Greatest width of tail 



Free portion of longest linger 



From elbow to tip of linger 



Free part of longest toe 



Knoe to tip of longest too ... (I 



E.xtcnt of outstretched toes 



No. 5242; one specimen ; North Rocky Mountains; Lieutenant iNIallen. 



Liii. 



-.1 

 12.7.-. 

 I'.l. 1 



■».-* 

 (i 



1>. 75 

 f). 2 

 5 

 4 



:s 



2. ar> 

 y;j. (I 



.'■>.4 



•i.r, 



y. r. 



i>. 7r» 



;{ 

 11 



<;. (i 



I 



(SI/ 



w 



Sll 



