248 Mr. W. E. de WInton 



on 



The most marked differences in the skull compared with 

 77. gracilis are its shortness, the less developed occipital and 

 sagittal crests, the postorbital processes not joining, the 

 shorter tooth-row (measurement of entire tooth-row about 

 equalling that from the front of the canine in II. gracilis) , 

 teeth individually smaller (especially the carnassial and first 

 molar), last molar longer in proportion to the first, and the 

 greater vertical depth of the auditory bulla ; in the mandible 

 ihe most striking difference is the much shorter angular 

 process, the measurements from the front of the jaw to the 

 condyle and to the angle being practically equal. 



(4) Ictonyx erijlknea, sp. n. 



Size smaller than the Cape Zorilla (7. zorilla). Colour and 

 pattern of the markings generally as in that species ; the 

 suboral white patch, however, is rather more extensive, and 

 the black dorsal stripe does not widen out quite so much over 

 the loins. 



The specimen co-ntained in the present collection was ob- 

 tained at Habr Heshi (4000 feet), Marehan Country, S.E. 

 vSomaliland, Aug. 24th. Tiiis being a flat skin, it is thought 

 advisable to select as the type of the species another example 

 from the collection of the British Museum (no. 93. 6. 7. 4), ? , 

 from Suakin, presented by Surg.-Capt. R. H. Penton, 



J\Jeasuiements (taken from dried skin) : — 



Head and body (c.) 335 millim. : tail (c.) 255; hind foot 

 (c.) 46. 



Skull: greatest length 55'5; greatest breadth 33'5 ; brain- 

 case 28'9; intertemporal constriction 14'5 ; basal length 51 ; 

 length of entire tooth-row 21*5 ; greatest lireadth outside 

 teeth 20 ; length of carnassial (outside) 6 ; breadtli of molar 6 ; 

 mandible, length (bone only) to condyle 34'5, to angle 33'2. 



The shape of the skull generally as in 7. zorilla, differing 

 only in size. The front of the palate is scooped out, forming 

 a shallow sinus, in which the incisive foramina are placed. 

 The carnassial tooth is shorter in proportion and the molar 

 narrower, esi)ecially internally. 



The specific name chosen is intended to express some idea 

 of the range of this species. The tliiid form of this group, 

 7. sencgahnsis, extends across the continent to LxJo on the 

 Kile, and into British East Africa as far as Machakos, where 

 it has been obtained by Mr. F. J. Jackson. 



(5) Canis lupaslcr, Hempr. & Elncnb. 

 a. Edegan (5000 feet), 130 miles south of Berbcra, 

 20th June. 



