of the District of Montreal, 309 



changing to brown, then to yellow, and lastly tipped with black- 

 ish brown. Around the eyes, and sides of the nose, the fawn 

 assumes a lighter tint ; the intermaxillary space pure white, ex- 

 panding into a white circular spot which covers the upper part of 

 the throat ; abdomen, and upper internal surfaces of the hind legs 

 white ; irides deep hazel ; antlers incurved, branched from their 

 internal upper surface ; tail tufted, composed of white and brown 

 hairs ; back part of the knee-joints of the hind legs deep brown. 



Ord. IX. Cetace-^. 



Fam. II. Ordinary whales. — Tribe I, Delphinus, 



Genus Delphinus. 



Gen. char. Teeth canine-shaped, compressed and notched on 

 their cutting margins, from none to 200 ; jaws more or less elon- 

 gated ; spiracle luneiform, an adipose dorsal fin with an occasional 

 longitudinal fold of skin ; tail horizontally flattened and furcate. 



Suh genus Delphinapterus. 



Sub gen. char. "Without dorsal fins ; head oblique ; muzzle not 

 elongate ; teeth ranging from 9 to 42 throughout. 



D. Leucas. Beluga or White Grampus. 

 D. albicans of Fabr ! 



v.s.p. Length from extremity of the tail to extremity of the 

 snout 12 feet, 5 inches; of tail 1 foot, 6 inches; breadth of the 

 tail 2 feet, 9^ inches ; length of pectoral fins 1 foot, 4 inches ; 

 distance between the eyes over the head 1 foot, 11^ inches; 

 greatest circumference about 9 feet ; head externally convex ; 

 eyes small, black, situated 5 inches above and behind the com- 

 missure of the mouth ; spiracle large, luneiform, 2j- X 1 J inches ; 

 three fins, two pectoral and a caudal or tail. There is no dorsal 

 fin, but a slight fleshy eminence supplies its place. Colour pure 

 white ; cuticle of a mucous or gelatinous nature, nearly half an 

 inch in thickness. The specimen from which the foregoing de- 

 scription is taken, was killed opposite the city of Montreal in the 

 spring of 1836, and is at present a conspicuous object in the 

 Museum of the Natural History Society of this city. The author 

 has had no opportunity of examining its dental or osseous system. 



' END OP THE CLASS MAMMALIA AS OBSERVED IN THE DISTRICT OF MONTREAL. 



