474 PROCEEDINGS OF THE XATIOXAL MUSEUIVI vor,. io6 



Lepus capensis dinderiis, new subspecies 



Figure 3,d 



Type: BM No. 14.3.8.45, adult male, skin and skull, from Kamisa, 

 Dindcr River, Anglo-Egyptian Sudan, detained December 24, 1913, 

 by W. P. Lowe, original No. 47. 



Specimens Examined: Twelve, all in BM, from: Jebel Ain, White 

 Nile, 1; Sinkat, 4; Kamisa, Binder River, 4; White Nile, lat. 13°, 1; 

 Port Sudan, 1; Wad Aledina, 1. 



Diagnosis: Nuchal spot, bases of ears, forelegs, throat patch, and a 

 thin line on the posterior lateral part of the body, extending onto the 

 hind leg as far as the ankle, near Ochraceous-BufT. This latter line 

 separating the dorsal color from the pure white belly. All white haii"S 

 of bell^' white to the base. Ears darker than any pure color on body 

 but anterior margin of ear with a thin line of Ochraccous-Buff . Dor- 

 sum with broadly black-tipped hairs, giving a very dark appearance. 

 Tail white below and with a thin black line on the dorsal surface. Eye 

 completely surrounded by a white ring. Chin, belly, inside of forelegs 

 and hindlegs, pure white. Skull, in dorsal outline, curved; postorbital 

 processes reach frontals above zygomatic arches; nasals relatively 

 short but narrow; upper cheek teeth relativelj^ light; bullae relatively 

 small; choanae nearly parallel sided. 



Measurements of the Type Specimen: Length of head and body 

 439; length of tail 79; length of hind foot 105; length of ear 110; 

 greatest length of skull 85.6; condyloincisive length 73.5; greatest 

 width across zygomatic arches 39.5; least interorbital width 17.8; 

 breadth of braincase 28.3; median length of nasals 29.1; greatest 

 width of nasals 18.2; length of palatal foramina 20.6; width of palatal 

 foramina 9.5; width of choanae opposite M^ 7.4; alveolar length of 

 upper molar series 12.6. 



Comparisons: Lepus capensis dinderus may be distinguished from 

 Lepus capensis isabellinus in its generally darker color, somewhat 

 larger size, and the peculiarity of the doming of the cranium as opposed 

 to a relatively flat dorsal outline in the latter. 



Fi'om Lepus capensis aegyptius, L. c. dinderus differs in: General 

 ground color of pelage gray instead of brown, somewhat larger size, 

 and the doming of the cranium. 



Lepus capensis dinderus differs from L. c. hawkeri in : Lighter color, 

 broader interorbital region of the skull, smaller auditory bullae, wider 

 basioccipital region, and wider mesopterygoid fossae. 



Remarks: Lepus capensis dinderus has a rather wide range north of 

 the central swamps of the Sudan. Its place is taken farther to the 

 south by Lepus capensis crawshayi, from which it differs in somewhat 



