88. SPAEID^E DIPLODUS. 
559 
preorbital broad. Mouth low, horizontal ; incisors broad, serrated in 
the young, then becoming emarginate and finally entire. Cheeks with 
C rows of scales; scales on breast very small, crowded. Dorsal spines 
very strong, higher than the soft rays, the last considerably shortened, 
so that the outline of the fin is emarginate ; second anal spine very 
strong, nearly as long as the snout and eye ; pectoral very long, reach- 
ing past the front of the anal; ventrals reaching vent. Head 3^; deptlr 
1§. D. XII, 12; A. Ill, 10; scales 7-I5-1G. L. 30 inches. Cape Cod 
to Texas ; abundant ; the largest member of the genus, and one of our 
most valued food-fishes. 
(Sjmrus prohatocephalus Walbaiim, Artedi, Pise. 1792, 295: Sargus ovis Mitcliill, 
Trans. Lit. & Phil. Soc. N. Y. i, 392, 1814: Sargus ovis Cuv. &. Val. vi, 53: Sargus ovis 
Holbrook, Ich. S. Car. 1860, 54; Giiather, i, 447: Archosargus proliaioceplialus Gill, and 
of most late American writers.) 
M. No procumbent spine before the dorsal fin. {Dipiodus.) 
881. D. ho3l>rook.i (Bean) J. & G. — Bream. 
Dull silvery, without cross- bands ; dorsal, caudal, anal, ventrals, 
axil, and edge of opercle dusky; a black blotch on caudal peduncle 
above. Body ovate, not elevated, compressed, the axis of the body 
below the middle of its depth. Eight incisors in each jaw; three rows 
of molars above, two below. Pectoral 3 in length ; second anal spine 
longest. Head 34; depth 2^. D. XII, 14; A. Ill, 13; scales 8-61-lG. 
L. 12 inches. Charleston, S. C. [Bean.) (Possibly the adult form of 
the next.) 
{Sargus liolhroohi Beau, Forest and Stream, June 13, 1878, and in Proc. U. S. Nat. 
Mus. 1878, 198.) 
88.5. D. caei«Ii9iia,cti3a (Poey) J. & G. — Spot-tailed Pin-fish. 
Silvery, with bright reflections; about 8 very narrow dark vertical 
bands; a very distinct black bar on back and sides of caudal peduncle; 
shining streaks and dark punctulations along the rows of scales ; ven- 
trals and anal mottled with dusky; edge of opercle dusky; axil dark. 
Body ovate, compressed, very deep. Dorsal and ventral outlines both 
strongly arched, the axis of the body at about the middle of the depth, 
the back steeply elevated behind the nape. Maxillary not reaching 
the eye, which is 3 in head. Caudal peduncle short and slender, about 
as deep as long. Cheeks with 3 rows of scales; interopercle broad, 
with 3 distinct rows of scales; scales on breast not much reduced. 
Mouth very small, terminal. Incisors broad, entire. Sirines moderate, 
those of the dorsal higher than the soft rays; second anal spine longest; 
pectorals long, reaching to anal; ventrals reaching to vent. Head 3^; 
