PECULIAR GLANDS OF MAMMALIA. 



635 



496 



Dorsal scent-gland, Peccari ; one-third nat. size. 



to Linneus the term Dicotyles, for this genus of S. American 

 porcine animals. 



In many Antelopes there are situated in the groin, external to 

 the nipples in the females, glandular depressions of the skin, or 

 pouches, sometimes of 

 large size, as in Anti- 

 lope corinna, e.g., in 

 which the secretion is 

 yellow, like cerumen. 1 

 The presence or ab- 

 sence of the groin-pits 

 in the different species 

 of Antelopes is noticed 

 in the table, p. 633. 



The most notable de- 

 velopment of scent- 

 glands and bags, at the groin, are those which open into the 

 prepuce of the small Ruminant, called on account of the odour of 

 the secretion ' Musk-deer ' (Moschus moschiferus). The fully 

 developed gland at the fundus of the sac may be three inches in 

 diameter and one inch at its thickest part ; the moist secretion 

 accumulates in the cavity 

 of the tegumentary pouch, 

 and constitutes, when dried, 

 the costly medicament or 

 perfume, t musk.' 



The analogous carmina- 



CD 



tive or antispasmodic sub- 

 stance ( castoreum ' is the 

 secretion of glands, fig. 497, 

 exuding into the preputial 

 and ano-preputial passage of 

 the beaver. They present 

 the appearance of two large 

 masses, with a common mus- 

 cular investment on each side 

 the dorsal tract, which is un- 

 usually prolonged beyond 

 the pelvis for their accommo- 

 dation in that rodent. On re- 



, , Prepntial and glands of the Beaver. 



moving the muscular layer, 



each mass has its capsule : on dissecting this away, the upper mass 



1 ccxxxvi. vol. ii. p. 146. 



