514 DR. ,T. E. GRAY ON THK CANin.l!. [JlUlC 25, 



10. Thous. 

 Skull elongate ; nose tapering, moderate. Temporal muscles se- 

 parated by a vase-shaped crown. Teeth 44=1^; two tubercular 

 grinders in each side of the upper, and three in each side of the 

 lower jaw, the two hinder circular, the hindmost very minute. 



Lycalopex, § 1, Burmeister. 



There are three skulls in the British Museum, all showing the 

 additional hinder lower grinders. One, 1 033 b, has a group of four 

 small hinder tubercular grinders on one side of the lower jaw, which 

 displaces and throws out of the regular line the larger penultimate 

 tubercular lower grinder. 



1. Thous crancrivorus. Crab-eating Dog. B.M. 

 Tail moderately long. Snout blackish. 



Canis cancrivoms, Desm. Mamm. 199; Blainv. Oste'ogr. t. 9 

 (skull), t. 12 (teeth), t. 



Viverra cancrivora, Meyer, Zool. Ann. i. 135 ; Actes de la Soc. 

 d'H. N. a Paris, i. 115. 



Canis hrasiliensis, Lund, Bras. 1842, t. 



C melampits, Wagner. 



Vulpes brasiliensis, Gerrard, Cat. of Bones of Mamm. 88. 



Canis (Lycalopex) cancrivoms, Burm. Fauna Bras. 24, t. 22, t. 

 27. f. 1, 4. 



Lycalopex cancrivoms, Gerrard, Cat. of Bones of Mamm. 89. 



Chien des hois, BufFon, H. N. Supp. vii. 146, t. 38. 



Chien sauvaye, Fermin in Holl. Equin. 10. 



1 Canis thous, Linn. S. N. i. GO. 



Surinam Boy, Penn. 



Hah. French Guiana, in small packs. 



2. Thous fulvipes. B.M. 



Canis fuhipes, Martin, P. Z. S. 1837, p. 11 ; Waterhouse, Zool. 

 Beagle, t. 6 (1839) (type in B. M.). 



Vulpes fulvipes, Gerrard, Cat. of Bones of Mamm. 88. 



1 C. (Lycalopex) entrerianus, Burmeister, Uebersicht dcr Siiugeth. 

 von La Plata, ii. 400, 1861 ; Arch. Naturg. 1862, p. 130. 



Hah. Chili (Bridyes). 



Section IL Vulpin.e. Skull thin, elony ate. Pcstorhital process 

 of the frontal bones herd but little downward, the anterior 

 edye turned up; a lonyitudinal shallow pit or indentation at 

 its base. Pupil of eye often elliptical, erect. Head slender. 

 Upper incisors scarcely lobed. 



Subfam. 3. Vulpina. 

 Vulpince, Baird, Mamm. N. A. 121. 



