LÖNNBERG, MAMMALS FROM BRIT. E. AFRICA. 19 



Procavia (Heterohyrax) briicei conf. liiudei Wroughton. 



An interesting series of five specimens from Donya Sa- 

 buk collected ^^ji — ^^ji 1914 appear to belong to this species. 



The largest of them is an adult male in stage VIII. 

 Length of head and body (according to collectors measure- 

 ments) 407 mm., hind foot 66 mm., ear 32 mm. (The dry 

 hind foot is, however, only about 60_mm.) The next is a 

 female in stage V. In the lower jaw p^ has just been fully 

 developed. Length of head and body 394 mm., hind foot 

 60 mm. (dry 58 mm.), ear 29 mm. The three remaining 

 specimens retain yet their upper milk-incisors, but the per- 

 manent upper incisors are just beginning to appear in the 

 two oldest ones. Å\\ these three specimens have on either 

 side of the upper jaw a series of six teeth. The foremost 

 of these is a small double-rooted tooth which has by various 

 authors been regarded as de. It resembles closely the condi- 

 tion which recently has been figured by Brauer in his pa- 

 per »Zur Kenntniss des Gebisses von Procavia», fig. 10.^ In 

 the lower jaw the four milk-premolars and the first molar 

 are developed. These three specimens ought to represent 

 stage III. The largest of them, a male, has according to 

 the collector the foUowing measurements. Head and body 

 350 mm., hind foot 53 mm., ear 27 mm. The smallest, a 

 female, head and body 338 mm., hind foot 53 mm., ear 27 

 mm. The difference in bodily size is thus quite conspicuous, 

 although the skulls represent the same stage. The greatest 

 length of the three skulls is resp. 70, 69 and 66 mm. 



In the first mentioned old male (in stage VIII) the teeth 

 are well worn. The pectinated portion of the lower incisors 

 is worn off, and the first premolar of the lower jaw has fal- 

 len out, so that only a small remnant of its root remains 

 projecting a little from the alveole closely adpressed to the 

 anterior root of the second premolar. 



As to colour all the five specimens are very similar. 



And this colour appears to be rather better expressed 

 by Gray's words^ »yellow grey-brown, closely and minutely 

 punctulated with black;^, than with Thomas' »clear grey, 



^ Sitz.ber. d. Ges. naturf. Freunde Berlin. Jahrg. 1913, n:o 2. p. 121. 

 ^ Cat. of Carnivoroas etc. Maram. Brit. Mus. 1869, p. 287. 



