REVIEW OF THE SERRANID^. 
397 
c. Produced part of preopercle very broad, its (vertical) breadth about one-third length of head to 
end of opercular spine; gill-rakers, x-|-12; eye and head about as in D. radiate ; longest 
dorsal spine 3 in head; scales smaller than in H. macropoma ; six or seven rather irregular 
rows on cheek. Color dull brownish, with four or hve vague, dusky cross-bars, and a large 
dark spot at base of caudal ; snout and preorbital with vague, pale blotches ; base of soft 
dorsal, blackish ; fins without blue spots ; dorsal plain ; caudal with an oblique white tip 
to each lobe; ventrals black. Head, 2|-; depth, D.X, 12; A. Ill 8. Scales, 7-54-18. 
Eye, 4 in head. Snout, 3| Eubyplectrum, 79. 
cc. Produced portion of preopercle not very broad; its (vertical) breadth not more than one-fourth 
length of head. 
d. Scales on cheek large and irregular, in five or six rows; width of preopercular process about 
one-fourth head ; its posterior edge truncated ; general form of body and head essentially 
as in D. radiate', gill-rakers x-(- 10; longest dorsal spine 2f in head. Coloration (like 
other characters) intermediate between 2). eurijptectrum and D. radiate; brownish, with 
numerous traces of vague, dark cross-bars ; a very distinct black caudal spot ; snout 
with four or five pale blotches; a pale streak from below eye across preopercular angle ; no 
black at. base of soft dorsal; the fin with very faint tr.aces of blue spots; caudal plain, 
darker toward tip; ventrals pale. Head, 3|-; depth, 3J. D. X, 12; A. Ill, 7. Scales, 
5-48-14. Snout, 4 in head. Eye, 4 Macropoma, 80. 
dd. Scales on cheeks small and regularly x^laced in about ten rows ; width of preopercular process 
4| to 5 in head, its posterior edge rounded ; gill-rakers x 10, short and slender, well sepa- 
rated; region above the large eye prominent; snout short, bluntish ; cheeks with ten rows 
of scales; these regularly placed ; serrae on preopercle much produced in the adult; short 
in the young; upper lobe of caudal little produced ; longest dorsal spine 2| in bead. Body 
light brown above, dull yellowish below; the scales on sides each with a silvery center; 
irregular, vague, dark cross-bars, broader than the interspaces ; a black bar at base of cau- 
dal; usually no blue lines or white areas on head; soft dorsal with bright blue spots, each 
surrounded by a dark blue ring; caudal with bars of similar spots; young with two black 
longitudinal stripes, the lower forming a spot at base of caudal. D. X, 12 ; A. Ill, 7. s,Scales, 
8-51-20 E ADIALE, 81. 
66. [Spines at angle of preopercle about four in number; scales small ; color uniform l)rown, with- 
out bands or spots ; brown on the back, silvery below ; spinous dorsal marbled with violet ; 
soft dorsal obliquely striped with violet and yellow ; caudal immaculate ; ventrals black- 
ish. D. X, 12; A. HI, 6.] (Guv. &Val.) Conceptione, 82. 
78. DIPLECTRUM FORMOSUM. 
(Squirrel-fish; Serrano.) 
Perea formosa Linnaeus, Syst. Nat., Ed. XII, 488, 1766 (Carolina) ; Gmelin, Syst. Nat., 1322, 1788 (copied) . 
and of the copyists; partly confused with Hcemuton ptumleri, to which species some of the early 
references belong. 
Serranusformosus Jordan, Proc. U. S. Nat. Miis., 35, 1884 (Pensacola); Jordan, Proc. U. S. Nat. Mus., 
39, 1884 (Pensacola); Jordan, Proc. U. S. Nat. Mus., 125, 1884 (Key West) ; Jordan, Cat. Fish, 
N. Am., 82, 1885 ; Jordan, Proc. U. S. Nat. Mus., 1886, 39 (Havana). 
Sen-aviis radians Quoy & Gaimard, Voy. de I’Uranie, Pois8.,313, tab. 58, fig. 2, 1824. 
Centroprisiia radians Giiuther, Cat. Fish. Brit. Mus., I, S3, 1859 (Brazil; Montevideo). 
Diptectrum radians Poey, Ann. Lyc. Nat. Hist., 34, 1871 (Cuba) ; Poey, Enumeratio, 23. 1875. 
Serranm irradians Cuv. & Val., Hist. Nat. Poiss., 11, 244, 1828 (Montevideo). 
SerranusfasoicularisCwY.&YetX., Hist. Nat. Poiss., 11,245, pi. 30, 1828 (Brazil)'; Cuv. & Val., Hist. 
Nat. Poiss., IX, 431, 1833 (Charleston); Cuvier, Ebgne Animal, 1829; Storer, Synopsis, 280 
1846 (copied); Jordan & Gilbert, Synopsis Fish. N. Am., 5.B4, 1883; Jordan &, Gilbert, Proc! 
U. S. Nat. Mus., 273, 1882 (Pensacola). 
Centropristis fascicutaris Gunther, Cat. Fish. Brit. Mus., I, 83, 1859 (Brazil ; Charleston). 
Diptectrum fasoicutare Holbrook, Ichth. S. Carolina, 1860 (Charleston); Poey, Repert., I, 195, 1867; 
Poey, Synopsis, 282, 1868 (Havana); Gill, Cat. Fish. East Coast N. Am., 28, 1873. 
