THE CALIFORNIA GRAY WHALE. 21 



Ft. In. 



Corner of moutli to top of head 2 06 



Nib-end to eye 7 06 



Spout-holes to nib-end 6 00 



Length of opening of spout- holes 08 



Length of flukes or tail 10 00 



Breadth of flukes or tail 3 05 



Thickness of each lobe of flukes 09 



From fork of flukes to Tent 12 00 



From fork of flukes to genital slit 16 08 



Length of longest baleen 18 



Width of longest baleen 09 



(Number of layers of baleen on each side of the mouth, 182.) 



Longest fibres to fringe of baleen 05 



Average thickness of blubber 07 



Depth of small at junction of flukes 18 



Length of the fissure between the eyelids » 04 



Four other individuals, ranging from thirty -five to forty feet, were measured, 

 the result of which showed corresponding proportions, or nearly so. 



The animal has a succession of ridges, crosswise along the back, from opposite 

 the vent to the flukes. The coating of fat, or blubber, which possesses great solid- 

 ity and is exceedingly sinewy and tough, varies from six to ten inches in thickness, 

 and is of a reddish cast. The average yield of oil is twenty barrels. The baleen, 

 of which the longest portion is fourteen to sixteen inclics, is of a light brown or 

 nearly white, the grain very coarse, and the liair or fringe on the bone is much 

 heavier and not so even as that of the Right Whale or Ilumpback. The male may 

 average thirty -five feet in length, but varies more in size than the female, and the 

 usual quantity of oil it produces may be reckoned at twenty -five barrels. Both 

 sexes are infested with parasitical crustaceans [Cijamus Scammoni), and a species of 

 barnacle {Cnjjotolepas rhacJiianedi), which collect chiefly upon the head and fins.* 



* Following is W. H. Dall's descidption of furnished with a branchia at each side. This, 

 the C'ljamus Scammoni, and of the Cn/plolepas near its base, di^'ides into two cylindrical fila- 



rhachianccli (Proceedings Cal. Acad. Sci., Nov. ^^^t^' ^P^^^ll^ ^^^^^^^ ^^^ "S^* t° left. At 



. ^ _ , , the base of each branchia are two slender acces- 



9th, 18(2). Illustrations, figs. 1, 5, plate x. ,, , i. -i i ■. i, . i -t 



' ' ) o > > X gQj,y filaments, not coiled, quite short, and situ- 



Genus Cyamus, Lam. ated, one before and the other behind the base 



Cyamus, Lam. Syst. An. s. Vert., p. 166. of the main branchia. Second pair of hands, 



Bate & Westwood, ii, p. 80. kidney- shaped, with the carpal articulation half- 



Larunda and Panope. Leach. way between the distal and proximal ends, and 



Cyamus Scammoni, n. sp. J Body moder- having two pointed tubercles on the inferior 



ately depressed, of an egg-ovate form; segments edge, before the carpal joint. Third and fourth 



slighth' separated. Third and fourth segments segments somewhat punctate above ; all the oth- 



