tn i i A 
EXTINCT CIVETS AND MUNGOOSES. 295 
ence of aglenoid cavity near the socket for the articulation of the 
lower jaw, affiliate it to the MZustelide, with which, as we have 
seen, it agrees in the number of its teeth. The teeth them- 
selves have a marked resemblance to those of the Linsangs, the 
upper molar lacking the expansion of its inner half so charac- 
teristic of the Justelide. It does not appear to have been 
ascertained. whether there is a partition in the auditory bulla of 
the skull. 
The genus is represented by two species, P. mutabilis and P. 
simplex, from the Upper Eocene (Oligocene) Phosphorites of 
France, both of which may be compared in size to the smaller 
Icnneumons. | 
VII. GENUS STENOPLESICTIS. 
Stenoplesictis, Filhol, Comptes Rendus, vol. xci. p. 346 (1880). 
In this genus, which is also represented by two species 
(S. cayluxi and S. minor) from the French Phosphorites, the 
second upper molar is present, and of larger size than in those 
specimens of Paleoprionodon, in which it is developed at all, 
while in the lower carnassial tooth the inner cusp is larger than 
inthe latter. The auditory bulla is stated to possess a complete 
partition. | 
By means of certain other forms from the French Phosphor. 
ites, for which the names Haflogale and.Stenogale have been 
proposed, Paleoprionodon and Stenoplesictis are so intimately 
connected with undoubted Weasels like the Tertiary Pleszcits, 
that it is quite impossible to determine where the Viverride 
really end and the A/usteide commence. In 
In conclusion, it may be mentioned that the Lower Tertiaries 
of North America have yielded remains of. certain genera of 
primitive Carnivora known as Miacis and Didymictis, which 
appear not only to connect the Viverride very closely with 
the Canida, but likewise to indicate a transition from both te 
the still more primitive Creodont Carnivora. . 
