932 - THE JOHN DAY FAUNA. 



jaw and with the parietal region injured; (2) a cranium without muzzle or 

 lower jaw; (3) a cranium lacking- all posterior to the frontoparietal suture; 



(4) a cranium mutilated like the last, and without muzzle or lower jaw; 



(5) a left mandibular ramus, broken off behind first tubercular; (6, 7, and 

 8) fragments of three mandibular rami. 



This species is the smallest of the genus yet discovered in the Miocene 

 formation of Oregon. It is characterized by the contracted proportions of 

 the muzzle, the width of the front, and the large size of the orbits. The 

 postorbital process is only a short angle. The superior border of the tem- 

 poral fossa is traceable from the postorbital process. Those of opposite 

 sides embrace a smooth sagittal area of an elongate urceolate form, and 

 vmite posteriorly in a very short crest. The species is further characterized 

 by the large size of the first superior tubercular molar and the swollen otic 

 bullae, which exceed relatively those of any other species of the genus. 



While the muzzle is shorter in the species of Galecynus described in 

 the- present work than in existing species of Canidoe, the G. lemur still further 

 diminishes the size of this region by lateral contraction. The profile de- 

 scends gradually and regularl}-, and the ^^remaxillary bone is quite oblique 

 and prominent below. The interorbital region is wide and is quite flat. 

 The orbit is large, and the postorbital angle of the zygoma well posterior. 

 The occiput is much contracted; its lateral angles are well defined but not 

 very prominent, and become obsolete on the mastoid regions. The tube- 

 rosity for the vermis is distinct. The precondylar fossa is narrow, and is, 

 as in other species, bounded by a transverse ridge, which extends from 

 the paroccipital process to the basioccipital median line. The paroccipital 

 process does not descend below'the level of the occipital condyles; it is 

 appressed to the otic bulla to near its extremity, which is free and directed 

 downwards. Its external surface, as far as the occipitosquamosal ridge and 

 posttympanic process, is flat. The latter process is a mere tuberosity, and 

 does not descend on the bulla. The postglenoid is nan-ow and small, as in 

 recent Canidce, and its external border extends obliquely downwards and 

 inwards. The bullee are very large, and of a moderately compressed oval 

 form. They do not present a prominent lip at the meatus. The zygomata 

 are more widely expanded than in any other species of Lower Miocene 



