1910.] CUTANEOUS SCIENT-GLANDS OF UUMINAXTS. 861 



somewhat abrupt descent of the integument just above the hoofs. 

 It descends straight down to the heels, which are united by a 

 strong tie running for a short distance parallel to the sole of the 

 hoof before turning upwards in continuation with the skin of the 

 back of the pastern. The heel-tie is the only portion of the 

 interungual integument which is hairless, the area above the tie 

 being covered with long hairs which j^roject forwards, overlapping 

 the pi-oximal margin of the noil in front. 



The hoofs are short and pointed and the heels of the hoofs well 

 developed, being both high and long, so that the integumental tie 

 between them is raised considerably above the ground. 



The pedal gland opens by a small circular orifice near the 

 summit of tiie triangular depression on the front of the pastern, 

 some distance above the hoofs. The orifice leads into a narrow 

 duct which quickly but gradually expands into the gland. The 

 latter descends along the interungual integument towards the 

 heel, then turns shai-jjly upwaids and backwards upon itself for 

 a short distance along the integument of the back of the pastern. 



The gland is lined with short hairs, and the secretion is a clear 

 semi-fluid substance with a pleasant scent like toflfee (baked 

 butter and sugar), slightly infused with acetic acid. 



Of this species I have examined several specimens of various 

 ages from Pei-sia. One example three days old had all the glands 

 developed, the pedal glands being as large relatively as in the 

 adult, the preorbital gland only a little smaller, but the inguinal 

 glands decidedly shallower. I have also noticed that the inguinal 

 pouches are sometimes quite shallow in Sheep of domesticated 

 breeds. 



Ovis MusiMON Schr. 

 (The Sardinian Mouflon.) 



This species has the glands of the same structure as in 0. vignei, 

 with the preorbital gland smaller ; but in one specimen I noticed 

 an unexpected difi:erence in the feet, the entire interungual area 

 from a point on a level with the front of the hoof downward 

 including the heel-tie being naked instead of hairy. 



Ovis canadensis Shaw. 

 (The Rocky Mountain Bighorn.) 



In a dried skin of this species, for which I was indebted to 

 Mr. E. Gerrard, I found the preorbital gland, Avhich Mr. Lydekker 

 has described as minute and almost rudimentary, to consist of a 

 small but very distinct valvular invagination, only difiering in its 

 relatively smaller size from that of other species of Sheep. The 

 presence of a pair of inguinal glands was unmistakabl}- indicated 

 and there was a single pair of teats. Remains of the pedal glands 

 showed that these organs open as in ordinary Sheep, and the 

 interdififital area was clothed with hair down to the heel-tie. 



