11. THOUS. 201 



11. THOTJS. 



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

 parated by a vase-shaped crown. Teeth 44=f^; 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, Burmeiater. 



Thous, Gray, P. Z. S. 1868, p. 514. 



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

 additional hinder lower grinders. One, 1033 h, 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 craacrivonis. (Crab-eating Dog.) B.M. 



Tail moderately long. Snout blackish. 



Canis cancrivorus, Desm. Mamm. p. 199 ; Blainv. Ost&gr. t. 9 (skull), 



t. 12 (teeth), t. 

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



d'S. JV. d Paris, i. p. 115. 

 Canis brasiliensis, tmnd, Bras. 1842, t. 

 Canis melampus, Wagner. 



Vulpes brasiliensis, Oerrard, Cat. of Bones of Mamm. p. 88. 

 Cams (Lycalopex) cancrivoTUS, Burm. Fauna Bras. p. 24, t. 22, t. 27. 



f. 1, 4. 

 Thous crancrivorus. Gray, P. Z. S. 1868, p. 514. 

 Lycalopex cancrivorus, Gerrard, Cat. of Bones of Mamm. p. 89. 

 Chien des bois, Buffon, H. N. Svpp. vii. p. 146, t. 38. 

 Chien sauvage, Fermin in Soil. Equin. p. 10. 

 ? Canis thous, Linn. S. N. i. p. 60. 

 Surinam Dog, Penn, 



Hah. French Guiana, in small packs. 



2. Thous fnlvipes. B.M. 



Canis fulvipes, 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. p. 88. 

 ? Canis (Lycalopex) entrerianus, Burmemer, Uebersicht der Sdugeth. 



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

 Thous fulvipes. Gray, P. Z. S. 1868, p. 614. 



Hah. Chili (^Bridges). 



Section II. Vulpine. Skidl thin, elongate. Postorhital process of the 

 frontal bones bent but little downward, the anterior edge turned vp ; a 

 longitudinal shallow pit or indentation at its base. Pupil of eye often 

 elliptical, erect. Head slender. Upper incisors scarcely lobed. 



Subfam. III. VULPINA. 



Vulpina, Baird, Mamm. iVi A. p. 121 ; Gray, P. Z. S. 1868, p. 514. 



