Dr. Reng"ger's Mammalia nf Paraguay. 469 



Reng^. Of these No. 6 is stated to bear a close resemblance to D' Azara's 

 Chauve-souris troisieme, admitted into scientific catalogues under the 

 name of Phjllostoma rotundum. It differs, however, according to the 

 authour, from the description of the latter given by D'Azara, in the form 

 of the nasal membrane; although on a comparison of the two descrip- 

 tions we do not clearly perceive in what the difference actually consists. 

 Unfortunately neither D'Azara nor Dr. Ren^ger furnish us with specific 

 characters ; and we can consequently do little more with the new species 

 established by the writer now before us than refer to his descriptions, in the 

 attempt to abstract which we might lose sight of the most essential cha- 

 racters. His Glossophaga villosa appears to have remained hitherto 

 unnoticed; but his Molossus cc&cus is identical with the Chauve-souris 

 neuvieme of D'Azara, and his Koclilio ruber is the Chauve-souris onzieme 

 of the same authour, removed from Vesperlilio, in which it had hither- 

 to been mistakenly placed, to Xoclilio of which it has all the characters. 

 The Plantigrade Carnivora observed by Dr. Rengger in Paraguay 

 are the following : 17. Nasva socialis, Wied, [Cuati of the natives) ; 

 18. J^as. solitaria, Wied, [Cuati monde) ; 19. Procyon cancrivorus, 

 Geoflf., [Aguarapope) ; 20, Gulo Barbarns, Desm. ; and 21. Gulo 

 vittatus, Desm., (both called Yaguape). With the exception of the 

 Otter of the country, all the Digifigrada belong to the genera Canis 

 and Fells. The Otter is distinguished from the Lutra Brasiliensis, Ray, 

 under the name of 22. L. Paranensis, Rengg. The differences are 

 stated to consist in the want, (in the latter species), of the white or 

 yellowish longitudinal stripes on the under part of the neck, and of the 

 reddish yellow spot on the breast, which are characteristic of the former. 

 It has besides only four, instead of five, cheek teeth on each side of the upper 

 jaw ; and seems never to attain the large size of full grown specimens of 

 the Brasilian species, no individual seen by the authour having mea- 

 sured more than four feet in total length. It is added, on the authority 

 of D'Azara, that the tip of the tail in full grown females is white. The 

 Wolf, 23. Canis jubahis, Desm., [^ guar a giiazu and Yagua pyta); 

 the Fox, 24. Can. Azara, s. Brasiliensis, Wied, [Aguarachay] ; and 

 25, the different varieties of the Can. donicslicits, s. familiaris, L. 



