216 THE DESEADO FORMATION OF PATAGONIA 
SPECIMEN 3004 
Lower dentition 
Distance from premolar 1 to molar 3 76 mm. 
Molar 1, length II mm., width 6 mm. 
Molar 2, length 13 mm., width 6 mm. 
Molar 3, length 13 mm., width 7 mm. 
Height of mandible under premolar 4 30 min. 
Notogale gen. nov. 
This genus is proposed for the species designated ? Phar- 
sophorus mitis by Ameghino (should probably include ?Phar- 
sophorus tenuis which however never having been figured 
and not found in our collection I cannot definitely place). 
While the upper teeth have the same general character 
as Pharsophorus, they are much more compressed and tren- 
chant. Upper molar 2 is similar to that of Pharasophorus 
in having the protocone reduced, and the metacone repre- 
sented by a long sloping ridge. ‘The last molar is also 
similar in having the antero-external style, the developed 
paracone, but the protocone is much less developed, appear- 
ing only as aridge. In the lower teeth, however, there is 
a marked difference, in that the metaconid is lacking on 
molars, while the talonid is developed into a small basin 
with a single cusp on the posterior margin. ‘This genus 
seems to be closest to the Santa Cruz genus Cladosictis. 
Notogale mitis Ameghino 
? Pharsophorus mitis, 1897, Bol. Inst. Geog. Argen., t. 
18, p. 504. 
Ameghino briefly describes, without a figure, a species 
in which premolar 4 and molar 3 together measure 14 mm. 
—9, I have assigned to this two specimens, the 
: {) one with pm. 2 incomplete, pm. 3 complete, 
ey Wis! and m. 2 also complete. These teeth meas- 
ural size. ure the same as Ameghino’s and I think are 
the same. ‘There is also a fragment of the upper jaw with 
molars 2 and 3, though imperfect. From these it appears 
