1907.] MAMMALS FROM COGUNO, IXHAMBANE. 289 



" Native name, ' Tukunve.' 



" Fairly common and forming runs just below the surface in 

 the sanely ground, in the forest and bush. Owing to the peculiar 

 nature and smallness of the runs it was found impossible to trap 

 it and it could only be taken when seen working." — 0. H. B. G. 



9. Petrodromus schwanni, sp. n. 



c? . 1521, 1523, 1536 1539, 1557. 2 ■ 1500, 1515, 1522, 1524, 

 1537, 1538, 1552, 1553, 1554, 1555, 1556. 



Allied to P. sultan'* Thos., but skull shorter and the tail more 

 hairy and more finely scaled. 



General characters as in P. sultan, the peculiar round-headed 

 bristles underneath the tail quite as in that species. Colour 

 similar throughout, except that the dull russet-brown dorsal ai^ea 

 is broader and more difi'used, extending nearly across the back, 

 instead of forming a comparatively narrow line down the spine 

 sharply separated from the grey of the shoulders and flanks. 

 Face-markings, limbs, and under surface all quite as in sidtan. 



Tail rather longer than in sultan, and the scaling finer, 13 rings 

 of scales to the centimetre instead of 10 as in sultan; upper 

 sxu'face well haired throughout, the scales nearly or quite 

 hidden — (in P. sidtan the upper side of the tail is practically 

 naked and the large scales are clearly visible). In colour the 

 upper surface is deep black throughout, and the lower dull buffy, 

 not sharply contrasted ; extreme base below pale flesh-colour. 

 Long knob-headed bristles black throughout. 



Skull markedly shorter than in P. sultan, but the shortening is 

 chiefly in the muzzle, the brain-case being of about the same size. 

 Hinder edge of nasals level with the front of the anteorbital rim, 

 and falling about one millimetre short of the frontal processes of 

 the maxilla}. In P. sidtan the nasals are of about the same 

 length, but end further forward. P^ (the fourth tooth from the 

 back) comparatively small and narrow. 



Dimensions of the type (measured in the flesh) : — 



Head and body 192 mm. ; tail 181 ; hind foot 57 ; ear 36. 



Skull — greatest length 53 mm. ; basal length 47 ; greatest 

 breadth 29-5 ; length of nasals 20 ; interorbital breadth 9 ; 

 breadth of brain-case 20 ; length of upper tooth-series 27 ; front 

 of p^ to back of m'^ 11 '5. 



r^joe. Old male. B.M. no. 6.11.8.32. Original number 1557. 

 Collected 5 July, 1906. 



The occurrence of this handsome Petrodromus in Inhambane 

 was already recorded by W. L. Sclatert, who had received a 

 specimen collected there by Mr. H. F. Francis. With only a 

 single specimen, however, he did not think himself justified in 

 distinguishing it from P. sidtan, and it is therefore placed in the 

 ' Mammals of South Africa ' under the latter name. 



* P. Z. S. 1897, p. 43o. Originally published as P. sultani by a pi'inter's error, 

 but the mistake was corrected P. L. S. 1897, p. 928. 

 t Mainm. S. Afr. ii. p. 155, 1901. 



