322 REPORT OF COMMISSIONER OF FISH AND FISHERIES. [98] 
The name Plagusia belongs properly to the present genus rather than 
to the type of Plagusia bilineata, to which it has been restricted by 
Kaup and Giinther. It is, however, preoccupied in crustaceans, and in 
any case, both Plagusia and the substitute name Plagiusa are antedated 
by the name Symphurus. 
One of the American species referred to Symphurus, nebulosus, seems 
to differ widely from the others and is probably the type of a distinet 
genus, or subgenus, for which we have suggested the name Acedia. 
This name is applied by the Cuban fishermen to Symphurus plagusia. 
ANALYSIS OF SPECIES OF SYMPHURUS. 
a. Scales ctenoid, not keeled. (Symphurus.) 
b. Scales small, moderately ctenoid; ‘the number in a longitudinal series from 75 
to 105. 
e. Dorsal and anal fins chiefly black anteriorly and posteriorly, with paler edg- 
ings; body moderately elongate, the depth 33 in length; the head 
43. Scales rather small, not very rough, about 80 in a longitudinal 
series. D.90; A.73 to 75. Color rather pale, plain or more or less 
mottled with darker, but without cross-bars; fins chiefly black with 
PRICEIOU RIGS 6 oc ag spree is wi ea omni eee NIGRESCENS, 127. 
ce, Dorsai and anal pale anteriorly, becoming more or less abruptly black pos- 
teriorly. 
d. [Caudal fin abruptly pale; depth 44 in length; head, 54. D. 96 to 100; A 
86 to 87. Scales, 88 to 90. Color, grayish, speckled with brown; 
dorsal and anal fins black on last tenth, the caudal abruptly pale; 
tips of fin-rays vermilion.] (Goode § Bean) -... -MARGINATUS, 128. 
dd. Caudal fin black, asisa large part of the dorsal and anal; the black either 
continuous or in the form of large spots. Color, brownish, often 
mottled, usually with more or less distinct darker cross-bands, and 
with longitudinal streaks along the rows of scales, sometimes nearly 
plain brown. 
e. Scales quite small, 98 to 105. 
f. Body decidedly elongate, the depth about 47 in length; D. 97; A. 82; 
BEANE, DOsLy ete saath ase at nerae heee ee ae eon - ELONGATUS, 129. 
if. Body less elongate, the depth 34 in length; head, 5}; longitudinal streaks 
very distinct; D. 100; A. 80; scales about 105.... ATRICAUDA, 130. 
ec. Scales somewhat larger, 75 to 85; body rather elongate, the depth 3,4 tu 
3} in length; the head 5} to 53; D. 90 to 95; A. 75 to 80. 
PLAGUSIA, 131. 
ccc. Dorsal and anal pale throughout, or more or less mottled or spotted with 
darker; the caudal similarly colored, not distinctly black; body 
not very elongate, the depth 3 to 34 in length. (Probably all va- 
Piet Ss Of/ 5. MlAGad ose e ost rtewe > o> oie nls eens eee PLaGiusa, 182. 
«x. Body with dark cross-bands more or less distinct ; the fins mottled 
or speckled; upper eye slightly in advance of lower. 
y. Dorsal rays 86 to 95; anal rays 75 to 80; head 5 in length; depth 
3}; scales 85 to 93 ; cross-bands more distinct than in related species. 
Var. plagiusa, 132 (a). 
yy. Dorsal rays 78 to 85; anal rays 70 to 72; head 5in length; depth 
34; scales 80 to 90; color light brown, with darker cross-bars, which 
become obsolete with age...........-..----. Var. pusillus, 132 (b). 
