new Neotropical Mammals. 249 
their tips broadly black along the median area, these tips 
lessening and gradually disappearing on the sides: underfur 
dark chocolate-brown. Posterior half of body bright rufous, 
the long hairs black for their basal two thirds, then fulvous, 
with narrow black tips: underfur here quite black. ‘Tail, in 
continuation with the posterior back, grizzled red, not ringed 
above, and only indistinctly ringed below with whitish. 
Under surface dull whitish, the brown underfur showing 
through. Limbs, both fore and hind, grizzled fulvous proxi- 
mally, black distally. 
Skull smaller than in N, montana, scarcely longer, though 
more heavily built, than that of WV. ol’vacea. Nasal region 
round, not pinched in as in N. olivacea. Ridges on posterior 
palate less developed than in NV. montana. Bulle decidedly 
larger than in that species. 
Dimensions of the type (approximate) (measured in skin) :— 
Head and body 620 millim.; tail 890; hind foot, s. u. 77, 
Ceuerco ear 28, 
Skull: greatest length 114; basal length 99:5; greatest 
breadth 59:5; interorbital breadth 22; breadth of brain-case 
41; palate length from gnathion 68°3; combined length of 
three upper molars 17°5. 
Hab. Jima, Central region of Cordilleras, Province of 
Azuay, Ecuador. Altitude 2480 m. 
Type. Male. B.M. no. 77. 4. 3. 5. Collected by Mr. 
Clarence Buckley. 
This species no doubt represents in Ecuador the Peruvian 
N. montana, from which it differs in various details. It has 
no close relationship either to the ordinary large Nasuas on 
the one hand, or to the small-toothed NV. olivacea on the 
other. 
Nasua olivacea meridensis, subsp. n. 
Similar to the typical form in all respects, in size, quality 
of fur, in skull and dentition, but distinguished by there 
being a more or less obvious blackish line down the back, 
either commencing on the withers or indistinctly continuous 
with the median facial dark line. 
Size as in the typical subspecies, much less than in any 
other known Nasua. General colour coarsely grizzled 
olivaceous brown. Under surface dull brown. Face greyish 
brown, lighter over the eyes, and with the usual dark median 
black line running from the muzzle to the crown. Ears 
clothed inside and out with pale brown hairs, scarcely lighter 
at the edge. In the typical form the hairs of the edge are 
