894 Ml!. K. I. I'UCUCK O.N TllK [J UllL' 14, 



To compensate, as it were, for the absence of ingiiinal and knee 

 glands, the Sininghnck has an immense dorsal gland, tlie skin 

 underlying the well-known white dorsal shield having highly 

 developed sebaceous glands secieting a yellow sticky substance 

 wliich stains the bases of the white hairs yellow or forms a scurfy 

 kind of powder about their i-oots. No such substance is found 

 upon the hairs of the rest of the back ; and the skin of the ;irea 

 in question has a markedly fatty appearance when stripped, its 

 colour difterentiating it at once from that of the shoulders and 

 sides of the body. Mr. F. E. Beildard, F.R.S., long ago noticed 

 the glandular nature of this patch and drew my attention to it. 



Genus Axtiloi'E P.ill. 



AxTiLorii; cervicapra Pall. (The Indian Blackbuck). 

 (Text-fig. 105, A-C.) 



The large size of the preorbital gland in this species has 

 attracted the attention of zoologists from early times. The 

 })resence of inguinal glands was recorded by Owen in 1836 and 

 independently in the same year by Ogilby, who stated at the 

 same time that there are lai-ge pedal glands and only one pair 

 of mammae. These observations were rejieated b}' Hodgson and 

 have been copied by recent svstematic authors. 



Through Mr. Herbert Bolton, F.E.S.E., F.Z.S., 1 am indebted 

 to the C*ommittee of the Bristol INIuseum for the stufied skin of a 

 male of this species, and Mr. Gerrard kindly supplied me with 

 another. 



Ml. ( Jenanrs specimen had the jneorlutal glands intact and 

 by cutting them I was al)le to see that they difteved in no essen- 

 tial particulars from those of Gazelles, except that they were very 

 much larger, the infolding forming a long deep hair-lined space, 

 and the glandular ])ortion being very tliick and pale in colour. 

 The .structiu-e and general features of this organ have fdready been 

 described by Bennett, Owen, and others. 



The orifices of the inguinal glands were cleaily shown opening 

 close to tlie mamma% of which there was a single pair. 



The pedal glands were jiresent in all four feet .and wei-e very 

 like those of Gazelles. The walls of the interdigital cleft were 

 furnished with longer hairs ; the interungual integument was 

 much thicker and more horny, forming a stronger tie between 

 the hoofs ; its anterior extremity was slightly recurved and 

 furnished with a somewhat r;idiating tuft of hairs, the longest 

 of which overhung the pro.ximal edge of the hoof in front, while 

 between this tuft and the heel-tie tlie skin was naked. There 

 was no naked horny ])ad on the knees: but the knee gland was 

 developed Jis in Gazelles, tlie roots of llic long haiis l)eing packed 

 with .scui-f-like .secretion. 



The number, position, and structure of the cutaneous glands 

 show close relation.ship between the gener.-i Avtilopr and GnzpJIa, 



