1884.] 665 (Gill. 
teine and Oentrolophine, should be distinguished as families. It is only the 
want of sufficient data respecting the several genera that delays such a 
recognition at the present time. 
The Centrolophine appear to be the most generalized type, the ventrals 
being fully developed and retained in all stages, the dorsal and anal spines 
normally developed, and the preoperculum in some always retaining the 
spines characteristic of the youth of the Scombroid fishes, while the Stro- 
mateins contrast more or less in all these several features, and also have 
more specialized gill-rakers or processes. 
A summary of the known types of the family will give the means of 
better appreciating the relations of the forms to be specially considered. 
Family STROMATEID &. 
Synonymy. 
>Stromatini, Rafinesque, Indice d’Ittiolog. Siciliana, p. 89, 1810. 
X Fiatolides, Risso, Hist. Nat. de l'Europe Mérid., t. 8, pp. 107, 287, 1826. 
XStromateide, Adams, Manual Nat. Hist., p. 98, 1854. 
>Stomateidex, Giinther, Archiv fir Naturg., 28. Jahrg., B. 1, p. 59, 1862. 
——, Gill, Proc. Acad. Nat. Sci. Phila. [v. 14], p. 126, 1862. 
(Indicated but not named or defined. ) 
>Stromatei, Ftzinger, Sitzungsber. K. Akad. der Wissench. (Wien), B. 
67, 1. Abth,, p. 82, 1878, 
>Stromateide, Giinther, Int. to Study of Fishes, p. 452, 1880. 
=Stromateide, Jordan and Gilbert, Syn. Fishes N. Am., p. 449, 1882. 
Scombroides gen., Ouvier et al. 
Psettoidei gen., Bleeker. 
Corypheenoidei gen., Bleeker. 
Jorypheenide gen., Giinther. 
Carangide gen., Giinther. 
Nomeidex sp., Gisnther. 
Scombroidea with an elongated dorsal whose foremost rays only are more 
or less spiniform and the gill-rakers of the upper segment of the last branch- 
jal arch enlarged and dentigerous or sacciform, and projecting backwards 
into the @sophagus.* 
Body generally compressed, with the form regularly ovate or sub-or- 
Dicular, but sometimes more or less oblong or elongate, highest near the 
scapular region, and with the caudal peduncle suddenly constricted and 
slender, 
Anus in the anterior half of the body. 
Scales small, cycloid and smooth. 
Lateral ine nearly concurrent with the dorsal outline. 
Head compressed, generally higher than long, with the profile more or 
less decurved in proportion to the height, and with the snout more or less 
convex. HWyes submedian or anterior. 
*“"The cosophagus is armed with numerous bony, barbed teeth,” Gunther, Cat, 
Fishes B. M., y. 2, p. 807. 
