72 REVIEW OF LAGODON, ARCHOSARGUS, AND DIPLODUS. 



aa. Scales, 8-62 to 65-16 ; black bar not extending entirely across the caudal peduncle. 

 b. Eye 3^ in head, 1 in snout ; second anal spine 2j in head ; body much compressed ; 

 dorsal outline greatly elevated ; depth, 11 in length ; head, 3^ in length ; 

 profile almost straight, very steep; eye large, li in preorbital; mouth 

 moderate, almost horizontal ; maxillary 3i in head : incisors |, placed as 

 in holbrooki ; molars as in holbrooki. Longest dorsal spine 2i in head ; cau- 

 dal loug, forked ; second anal spine much stouter and i longer than third ; 

 veutrals reaching half way to second anal ray ; pectorals reaching to first 

 anal spine ; steel-blue above, silvery below ; a blackish border on the 

 operculum ; a black spot on the upper part of the base of pectorals; five 

 or six very narrow, oblique blackish crossbars; D. XII, 14; A. Ill, 13; 



scales 6-6-2-16 Argenteus, 6. 



bb. [Eye 4^ in head, 1^ in snout ; second anal spine 3^ in head ; depth about 2 in 

 length ; incisors rather Inroad, implanted obliquely ; three series of molars 

 above, two below ; eye 1^ in interorbital ; crown of head convex, a pro- 

 tuberance above the anterior angle of the orbit ; preorbital not entirely 

 covering maxillary; pectoral fius extending to origin of anal; ventrals 

 nearly to vent ; silvery or shiuiug golden, with many narrow longitudinal 

 dusky stripes (8 or i) above lateral line, 15 or 16 below), and with four or 

 five narrow blackish cross-bands, the first between the origin of the dorsal 

 and the axil; D. XI or XII, 12 to 15; A. Ill, 13 or 14; scales, 8-65-16.] 



{GUnther) Sargus, 7. 



5. Diplodus holbrooki. 



Saryu8 Jwlbrooki, Beau, "Forest & Stream, June 13, 1878" (Charleston); Bean, 

 Proc. U. S.Nat. Mus., 1878, 198 i. Chariest on); Jordan & Gilbert, Proc. U. 

 S. Nat. Mus., 1878, 379 (Beaufort); Bean, Proc. U. S. Nat. Mus., 1880, 95 

 (Charleston ; New York market). 



Diplodus holbrooki, Jordan & Gilbert, Proc. U. S. Nat. Mus., 1882, 605 (Charles- 

 ton); Jordan & Gilbert, Syn. Fish. North America, 559, 1883; Jordan & 

 Swain, Proc. U. S. Nat. Mus., 1884, 232 (Cedar Keys); Jordan, Catalogue 

 Fishes North America, 91, No. 1067, 1885; Goode, Hist. Aquat. Anim., 386, 

 fig. 132, 1886; Jordan, Proc. U. S. Nat. Mus., 1886, 27 (Beaufort, N. C). 



Diplodus caudimacula, Jordan & Gilbert, Syn. Fish. North America, 559, 1883 

 (Young; not caudimacula of Foej). 



Hahitat.— South Atlautic and Gulf coasts of the United States, Cape 

 Hatteras to Cedar Keys. 



The specimens examined are from Cedar Key'and Pensacola, Fla., 

 and from Beaufort, X. C. 



This species has not yet been found in the West Indies, though it 

 probably occurs there. It may be considered as the northern repre- 

 sentative of argenteus. It is, however, unquestionably a different spe- 

 cies from the latter. 



Skeleton. — No procumbent spine before the dorsal fin. Occipital crest 

 high, moderately thick, produced somewhat back of posterior edge of 

 skull; frontal crest moderately high at the anterior edge of the occipital 

 crest, extending to the anterior edge of the skull, and running up to a 

 point. An almost horizontal crest extends from the upper corner of the 

 preopercle forward to the frontal crest. The region immediately in front 

 of this very coarsely honey-combed. The space between the anterior 

 part of the orbits with three longitudinal crests, one in the middle, the 



