338 ^Ir- H. I. Pocock on some of the Ilrli'mul 



its way to the extcrioi" along a narrow passable — tlie three 

 passages converging and fnsing to form a common duct 

 opening to the exterior within the anal poncli. In the 

 example of Ut/tciia /ii/a'ua, on the contrary, tlie normal anal 

 gland is piriform antl saccnlar and nndivided, and opens at 

 its narrow end by a small duct into the anal [)onch. Close 

 to its narrow end, externally and in front, there is a large, 

 double, supplementary, glandular mass, which (li(F(irs from 

 the Hask-shaped or piriform gland in containing no cavity 

 and no definite duet. The secretion from this ghind makes 

 its way into the anal pouch by means ol' a number of minute 

 orifices scattered over the wall of the pouch adjacent to the 

 orifice of the duct of the piriform gland, which unmistakably 

 corresponds to the normal anal gland of other Caruivora. 



According to Alurie, therefore, H. brunnea has a single 

 jKiir of anal glands, each subdivided into three compart- 

 ments^ the passages from which join to form a common duct, 

 and thei'e are no accessory glands ; whereas in H. Injiena 

 there is a single pair of simple undivided anal glands, each 

 being accompanied by an accessory mass of enlarged cuta- 

 neous glands opening into the anal pouch by numerous 

 small apertures. Considering the tolerably close resem- 

 blance in other respects between the two species, this 

 difference is full of ijilerest. 



Judging from Watson's account of these glands in 

 Crocuta crocuta (P. Z. S. 1877, p. 369, pi. xli. and 1H78, 

 J). 41G, pi. XXV.), there is also a single j)air of piriform anal 

 glands in the Spotted Hyiena, and these are connected along 

 the lower portion of the pouch by a band of accessory glands 

 ojiening into the pouch by a "line of perforations.^* 



The very exact and detailed account given by Daubenton 

 (Bulfon's Hist. Nat. ix. pp. 287-288, |)ls. xxvii. & xxviii. 

 1761) of the glands in the Striped Hyiena agrees closely 

 with n)y observations upon that species, except that in 

 Daubenton's example the walls of the sack above the rectum 

 were more highly glandular than in my example, and the 

 lateral glandular mass does not appear to have been in any 

 Avav subdivided. 



Mivart (P.Z. S. 1882, pp. 198-199 ami 201) summarised 

 the facts recorded by Daubenton, Murie, and Watson by 

 saying " There is an anal pouch with two {H. striata = hi/(enu) 

 or three (H. brunnea) pairs of anal glands on eacli side of the 

 rectum; and in one [//. /njana], if not in both, species 

 there is a transverse band of isolated [glandular] follicles 

 at the bottom of the anal pouch " [pp. 198-199) ; and in 

 Crocuta '' there is but a single pair of anal glands, one on 



