TRIPLOPUS. 089 



are well closed up, the posterius being reduced to what is probably the jugu- 

 lar foramen. The / condyloideum is large, and is an anteroposteriorly placed 

 oval Its anterior extremity is opposite to and well separated from the 

 / jugulare. 



The nasal bones are spread out posteriorly, and their posterior extremi- 

 ties are truncate. The coronal suture passes downwards at the narrowest 

 part of the cranium behind the postfrontal angles. The squamosal bone 

 does not reach the frontal. The parietal does not extend so far posteriorly 

 as the lateral occipital crests, except near the squamosal. 



The characters of the last superior molars have already been mentioned. 

 The posterior transvei-se crest is uninterrupted, but the anterior consists of 

 closely united internal and median lobes. The division is marked on the 

 posterior side, and on the edge of the crest; the anterior face is plane. The 

 longitudinal external crest sends a strong protuberance into the head of the 

 valley, which is grooved on its surface. There is a strong anterior basal 

 cingulum which rises to an anterior cusp. On numerous surfaces the 

 enamel is slightly rugose. The inferior canine teeth are in continuous 

 series with the incisors, and are slightly larger than they. 



Measurements of skull. 



M. 



Length from line connecting anterior borders of orbits to occipital crest 0. 132 



Length from line connecting posterior borders of orbits to occipital crest 100 



Width between postorbital angles 100 



Width between anterior borders of orbits 076 



Elevation of occiput 065 



Width between mastoid ridges 065 



Width between ossa petrosa at middle 018 



0200 



0205 



anteroposterior 0200 



transverse 0150 



Diameters third superior true molar ^ anteroposterior . 



( transverse 



Diameters second superior true molar (base) \ 



( 



The portion of ilium remaining exhibits a rather narrow neck and a 

 concave external face. A fragment of the femur shows a prominent third 

 trochanter, with an obtusely rounded apex. The distal part of the fibula 

 is not coossified with the tibia. Its shaft is exceedingly slender. The angles 

 bounding the trochlear grooves and ridges of the tibia are of subequal 

 lengths. The median ridge is rather wide; the inner malleolus is narrow, 

 has no distal facets and no distinct tendinous grooves externally. 

 44 c 



