TEE CALIFORNIA GRAY WE ALE. 21 
Ft. In. 
Corner of mouth 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 vent 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 inches, is of a light brown or 
nearly white, the grain very coarse, and the hair or fringe on the bone is much 
heavier and not so even as that of the Right Whale or Humpback. 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 {Cyamus Scammoni), and a species of 
barnacle (Cryptolepas rhachianecti), which collect chiefly upon the head and fins.* 
* Following is W. H. Dall's description of furnished with a branchia at each side. This, 
the ' Cyamus Scammoni, and of the Crypiolcpas near its base, divides into two cylindrical fila- 
rhachianecti (Proceedings Cal. Acad. Sci., Nov. ments . spirally coiled from right to left. At 
rui iotos tii i- ^ c -i r i a. the base of each branchia are two slender acces- 
9th, 1872). Illustrations, figs. 1, 5, plate x. „. .. , ., . , ., 
sory 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. $ 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 
slightly separated. Third and fourth segments segments somewhat punctate above ; all the oth- 
