14 KNIIM AVDEHSKN 



1)0 noticed that Oal)roi'a's iiieasui-eiuent of the tootli-row (;).7 iiiiii.) 

 is practically the same as that taken })y myself ((> nnn.), whereas 

 the difference lies in his ()> nun.) ami my own measnrement 

 {(').:] mm.) of the maxillary ^vidth; that is, the alle;.;e(l difference, 

 in this respect, between H. tephrus and //. caffer is entirely 

 due to a difference in the method of measuring:-. — There remains 

 the difference in general size between H. tep/irus and H. caffer 

 caffer, cnnphasised by Cal)rera. This holds good to a certain extent, 

 i. e. the former averages slightly smaller than the latter. — I 

 liave carefully compared the Morocc(j s})ecimen with the British 

 Museum series of H. c. caffer, and can find ai)solutely nothing 

 beyond this small average difference in dimensions; it is therefore 

 out of the question to consider H. iephrics a distinct species, but 

 it may be kept separate as a local race. 



Having thus discussed the general characters of H. c. tephrus. 

 I can now proceed to ])oint them out in detail: — H. c. tephìnts 

 is extremely close to H. c. caffer, but has — (1) smaller ears: 

 length of ear-conch from base of inner margin, in 12 specimens, 

 11-13.0 mm. (in 4') //. c. caffer l'à.')-!;) mm.); width of ears 

 13-14.8 mm. (in 45 H, c. caffer 14-1 ().o nmi.); — (2) shorter 

 forearm: 44.o-/i7 nnn. (4().;)-'il.8 mm.); — (3) shorter metacarpals: 

 third metacar})al 3 1. 8-33. S mm. (33.5-38.2 nnn.); — (4) shorter 

 tail: 2(;.:)-32 nnn. (30-38 nun.); — (o) shorter lower leg: 18.2-20 nnn. 

 (19.3-22 nnn.); — ((i) smaller skull: total length of 8 skulls, to 

 front of canines, 1().7-17.2 nun. (in 32 H. c. caffer 17.2-18.3 mm.): 

 length of mandible 10.3-10.8 mm. (10.7-11.0 mm.); but notwith- 

 standing the smaller skull the size of the teeth se(>nis to be tlii' 

 same as in H. c. caffer: length of maxillary tooth-row .').7-(» mm. 

 (.o.7-().2 nnn.) ; this latter fact has already been mentioned by 

 Cabrera (« los dientes, con relacion al tamano del craneo, son 

 I)astante grandcs » ). — Further j)articulars are found in the 

 table below (p. Ki), in which I give measurements of the s}K"- 

 cimens examined of H. c. tephrus from (a) Nui)ia, (b) Ashantee 

 and Gold Coast, (c) F,Mrim, and (d) Mogador; further, (e) mininunn 

 .■111(1 maxinuun of all llie specimens taken together, and, for com- 

 })arison, (t)' minimuiii and maximum of a large series of H. c. 

 caffer. 



The colour of the fur, in //. c. tepiirus, is })recisely as in 

 //. c. calfer. 



