580 CONTKII'.r YINS TO NORTH AMERICAN ICHTHYOLOGY IV. 



set. in rather narrow bauds; the lower jaw without canines; upj -i T 

 jaw with two Ion;; canines, one of which is sometimes obsolete ; lateral 

 teeth of lower jaw larger than anterior. Preopercle with its mem 

 branaceous edge serrulate, the bone entire. Lower pharyngeal bones 

 separate, their tei-th all pointed. Gill-rakers strong', rather long. Ver- 

 tebrae about 14+10 (instead of 10+14 as in Scia'noidx generally). 

 I'setidobranchin- well developed. Dorsal spines slender; anal spines 1 

 or 2, very feeble ; second dorsal long and low; caudal fin subtruncate or 

 lunate. Large fishes chiefly of the waters of America, closely related to 

 the < Hd World genus OtolithuN. from which the> are distinguished by the 

 absence of canines in the lower jaw. All of them rank high as food- 

 iishes; the flesh is rich, but tender and easily torn ; hence the popular 

 name of Weak fishes, (xijw^ dog; <j-/.i<, Scirena; the modern Greek 



name of 1'inhr'mn rlrrhosa.) 





 a. Anal spines 2. 



913. C'. |>arvi|>iime Ayres. JUuc-fisli ; Corrina. 



Clear steel-blue above, without stripes or spots, silvery below; a 

 narrow dusky shade along the sides below the lateral line ; axil dusky; 

 lower lins yellowish with dusky shading; upper fins dark; the second 

 dorsal dark-edged. Body elongate, compressed, little elevated. Head 

 conic, rather pointed. Mouth large, the maxillary extending to beyond 

 the pupil. Eye large, a little shorter than snout, 6 in head. Teeth 

 moderate, in a rather broad band; canines very long and strong, usually 

 but one present. Fins rather low; caudal lunate; pectoral short, not 

 reaching to the tips of the ventrals. Gill-rakers strong, rather long. 

 Head :j.i; depth 4^. D. IX-I, 23; A. II, 10; the first anal spine ex- 

 tremely small. Lat, 1. with 75 tubes; the number of scales about '.>">. 

 L. 30 inches. IMoric coeca 3. Air-bladder long, with two appendages. 

 Co.i-t ol California and Mexico, chiefly south of Santa Barbara. An 



e\e:-lleiit food lisll. 



, res, Proo. < ':il. Acad. Xat. Sci. 18G1, 150: Ololithnx mtujdnti-iiu; Slcinilaclui.-r, Ii-hih. 

 licit r.'i^i-. iii, 1 -7." > . ) 



i:n. Anal spine 



<. Hack niiil'iini >ilvcry wliitc, without dark spots or blotches. 



!>1I. <\ llOf till ill Moll). ll'hitr Trout: S,-,i Trout. 



I'liilbrm bright silvery, bluish above. liody elongate, little compi-ess- 

 ed. I'.ack more arched than in the other species. Mouth moderate, 

 oliliijiie; louer jaw longest ; maxillary reaching opposite middle oj 

 i:\e large, about as Ion- as >nont. Heail3J; depth 3^. D. X-I, 28 (X- 



