1903.] OF THE PERCY SLADEN EXrEDlTIOJif. 235 



9. Vampyrops lineatus Geoff. 



J. 1091, 1092, 1099, 1100, 1101, 1200. 

 2. 1090, 1096, 1097, 1098. 

 Quite similar to topotypes from Paraguay. 



12. Canis sladeni, sp. n. (Plate XXVII.) 

 d. 1080. 11 August, 1902. Type. (B.M. No. 3.7.7.40.) 

 Allied to C. vetulus, but larger, with longer skull, greyer in 

 colour and with black feet. An additional upper molar present 

 on each side in the type. 



Size rather larger than in C. vetulus. Fur close and uniform, 

 not intermixed with long black piles ; long hairs of back about 

 33-35 mm. in length. General colour above clear grey suffused 

 with the buffy of the underfur, the net result being nearest to 

 Ridgway's " smoke-grey." Individually the longer hairs are 

 light for their basal and black for their terminal halves, with a 

 white subterminal ring about a quarter of an inch from their 

 tip. Underfur brownish plumbeous basally, buffy clay-colour 

 terminally. Under surface little paler, dull brownish, lighter in the 

 axiUfe and groins. Muzzle and chin blackish. Crown like back, 

 but the light ends to the underfur almost obsolete. Back of ears 

 brown, grizzled with clay-colour ; longer hairs of inner surface 

 creamy ; a large postauricular patch yellowish clay-colour. Fore- 

 arms and thighs like body ; hands and feet, both above and below, 

 blackish brown. Tail brownish grey, broadly washed with black 

 at the end and over the caudal gland. 



Skull, as compared with that of C. vetulus, markedly larger 

 throughout ; interorbital region longer and narrower, the part 

 behind the postorbital processes specially lengthened ; frontals 

 smooth and swollen ; palatal foramina very long ; palate ending 

 opposite to middle of m.^ ; mesopterygoid fossa long, the distance 

 from the hinder edge of the palate to the concavity below the 

 hamular processes 22 mm. ; front edge of prsesphenoid 6 mm. 

 behind the palatal edge. Penis-bone of the usual canine canoe- 

 shape, but much less strongly keeled than in the one example 

 of C. vetulus available. 



Teeth of the general type of those of C. vetulus ; p.* short and 

 rounded ; a supplementary and probably abnormal m.^ present on 

 each side, longer on the left than on the right. 

 Dimensions of the type, measui'ed in the flesh : — 

 Head and body 650 mm.; tail 310; hind foot (s. u.) 130; 

 ear 76. 



