PECULIAR GLANDS OF MAMMALIA. 



633 



and sheep ; also in many deer, 1 in which it appears as a simple 

 fissure continued from near the lacrymal angle of the eye. A 

 similar pit occurs in a more advanced position in some antelopes ; 

 such ( maxillary pits ' sometimes co-exist with the suborbital ones, 

 sometimes replace them. A third position of the cutaneous 

 gland-pit is more rare, viz. behind the base of the ear, as in the 

 Chamois (Anfilope rupicapra). With a view to test the relation 

 of these organs to the habitats, and gregarious or solitary habits 

 of the Antilopidce, I drew up the subjoined table 2 : 



Suborbital 

 and maxil- 

 lary pits. 

 Suborbital pits 



large. 



small. 



Suborbital pits. 



OJ 



a 



tt 



3) 



B 



Suborbital pits. 



Maxillary pits. 



C3 ( 



a 







fcJD 



Antilope Sumairensis. Hab. hilly forests ; habits of the 



quadriscopa. Senegal. 



cervicapra. Open plains of India ; gregarious. 



melampus. Open plains of Caffraria ; flocks of six or 

 eight. 



picta. Dense forests of India ; small herds. 



scoparia. Open plains of S. Africa ; subgregarious. 



traguhis. Stony plains and valleys of S. Africa ; in 

 pairs. 



melanotis. Plains, hides in underwood ; in pairs. 



Dorcas. Borders of the desert ; gregarious. 



Kevella. Stony plains, Senegal ; gregarious. 



subgutturosa. Plains, Central Asia ; gregarious. 



Bennett ii. Rocky hills of Deccan ; not gregarious. 



Arabica. Stony hills of Arabia ; sub-gregarious. 



Scemmerringii. Hills in Abyssinia ; not gregarious. 



Euchore. Dry plains of S. Africa ; gregarious. 



pygarga. Plains S. Africa ; gregarious. 



Mhorr. Deserts of Morocco. 



ruficollis. Deserts of Nubia ; gregarious. 

 Antilope coins. Vicinity of lakes ; gregarious, migratory. 



guiturosa. Arid deserts, Asia ; periodically grega- 

 rious. 



f Antilope Saltiana. Mountainous districts, Abyssinia ; in pairs. 

 Oreotragus. Mountains of the Cape ; sub-gregarious. 

 Thar. Hills of Nepaul ; not gregarious. 

 Gazdla. Senegal. 



Antilope Babalus. Mountains and deserts, Tripoli ; gregarious. 

 Caama. Plains of S. Africa ; gregarious. 

 lunata. S. Africa ; gregarious. 

 Gnu. Karroos of S. Africa ; gregarious. 

 taurina and Gorgon'. S. Africa ; gregarious. 



/ Antilope silvicultrix. Thickets and underwood, Africa ; ? 



mergens. Forests and underwood, S. Africa ; in pairs. 

 Grimmia. Guinea. 

 Burchellii', S. Africa, in pairs. 

 perspisilla. Bushes, S. Africa ; in pairs. 

 Maxwellii. Ib. ib. 



pygm&a. 



1 xx. vol. iii. p. 272, no. 2101 (Ccrvus tarandus}. 2 ccxxxm". p. 37. 



