1884.] The Amblypoda. 1113 
In all respects Pantolambda presents primitive characters. The 
V shape of its molar tubercles only presents us with the highest 
known modification of the primitive tritubercular molar, except- 
ing those which succeeded 
it in time in the remaining 
suborders of the Ambly- 
poda 
Of the genus Panto- 
lambda two species have 
heen discovered, both by 
Mr, David Baldwin, in New 
Mexico, The smaller of 
size of a coyote, the larger, |, $ 
P. cavirictus Cope (Fig. 6) $) 
is as large as a South 
American tapir, ‘or nearly 
equal to the smallest spe- 
cies of Coryphodon. The 
ungues of the P. dathmodon 
which have been found 
(Fig. 5 c) are narrower than 
those of the P cavirictus, 
but they may differ in pro- 
Portions on different digits 
as in the species of Phena- 
Codus. Both species are 
furnished with formidable 
canine teeth, but they are 
of normal form, and do not 
Present any of the peculiar- 
> of those of the Panto- Fic. 5.—Pantolambda hathmodon on Cope, bon pra 
nta or Dinocerata. In of individual 1 pee tae of a, two 
the lower jaw of the P. Se or ales A “anterior side. Fig. 4 po 
cavirictus (Fig. 6) they are emi gies side. aes ee: ve unguis. 
Somewhat recurved, fur-* a 
nishing a formidable seiz- 
ing and holding weapon. The lower edge of the mandibular 
1 On this subject see Proceeds. Amer. Philos. Soc., 1883, P. 324 
