Loomis — Wasatch and Wind River Primates. 279 

 ANAPTOMORPHIDAE. 



-4. homunculus 



A. abbotti 



A. minimus 



Ph 



Internal cinguluni 

 Posterior cinguluni slightly 

 raised meclianly 



No internal cinguluni 

 Posterior cinguluni raised 

 niedianly 



Posterior cinguluni not Posterior cinguluni raised 

 raised i meclianly 



Trace only of cinguluni Strong cinguluni in front and 



outside 

 Protolophid short iProtolophid very short 



Metalophid low Metalophid low 



Talonid larger than trigonid Talonid larger than trigonid 



No cinguluni 



Protolophid long and low 

 Metalophid high 

 Talonid only slightly 

 larger than trigonid 



Trace only of cingulum Strong cingulum in front and 1 No cinguluni 



outside 

 Paraconid close to tnetaconid ; Paraconid close to metaconidi Paraconid very distinct 

 Protolophid low iProtolophid low Protolophid low and long 



Metalophid low 



Trace only of cingulum 

 Paraconid small but distinct 



Metalophid moderate 



Strong cingulum in front and 

 outside 



Paraconid a mere rudiment 

 Metalophid low and notched! Metalophid deeply notched 

 Talonid about equal to tri- Talonid longer than trigonid 

 I gonid 



Metalophid high 



molar 1 the paraconid is strong and well separated from the 

 metaconid ; on molar 2 it is less independent ; and on molar 3 

 is barely distinguishable. The last molar is small, the talonid 

 elongated and narrow with a strong hypoconulid ; the hypo- 

 conid and entoconid being merely indicated on the raised mar- 

 gins running from the hypoconulid forward. On molars 1 and 

 2 the hypoconid and entoconid are well developed, and the 

 hypoconulid is wanting. The fourth premolar has a high pro- 

 toconid over the front root, and the merest rudiment of a 

 deuterconid beside it. The posterior cingulum is raised 



