CANIDiE. 937 



is not prominent. An obtuse bridge extends upwards to the postfrontal 

 process along the superior border of the orbitosphenoid bone, as in recent 

 dogs. 



Sutures and foramina.— As the skull is that of an old animal the sutures 

 are obliterated. The anterior nares are small and but little oblique, though 

 not so vertical as those of the Lutra valetoni, fide Filhol. They are about 

 as wide as deep. The infraorbital foramen is rather small, and is widely 

 oval in form. The palatine foramina are opposite the posterior part of 

 the sectorial, more anterior than in Galecynus lemur. There are, however, 

 two other foramina of smaller size, one opposite the anterior part of the 

 first tubercular, the other behind the posterior margin of the second tuber- 

 cular, near the posterior nostril. Lachrymal foramen rather large ; orbito- 

 nasal medium. Optic moderate ; / / sphemorhitale and rotundum separated 

 by a lamina only, the latter receiving the / alisplienoidale anticum. F. a. 

 posticum small and in a fossa common to the rather small / ovale. F. 

 lacerum anterius small, divided into two, and bounded inwardly by an obtuse 

 ridge of the sphenoid directed forwards from the anterior region of the 

 bulla. No distinct carotid foramen. F. lacerum posticum small and linear. 

 F. condyloideum rather large, situated between the anterior and posterior por- 

 tions of the large precondylar fossa. Foramen magnum rather small, wider 

 than deep. Mastoid very small ; postparietal large ; no postsquamosal. 

 Meatus auditorius nearly round, without reverted lip separating the post- 

 glenoid from it. 



Dentition. — The teeth of this skull are worn with age and use. The 

 sectorial is short and is widened anteriorly. The first tubercular is large, 

 and has considerable transverse extent ; it is a little wider externally than 

 internally, and has much the form of the corresponding tooth in Canis. The 

 second tubercular is transverse and small, not being much more than half 

 the length of the first, and is situated in contact with it. 



Measurements. 



M. 



Total length of cranium 0.170 



"VViiltli across zygomatic arches •- 0.114 



Least width behind orbits 0.024 



Depth of cranium with crest at otic bulla 0.070 



Vertical diameter of orbit 0.025 



Length from orbit to end of muzzle (axial) •. 0.040 



