420 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
China. Until the species is again found — either in China or in Central America — its 
habitat must remain uncertain. The discovery of a species of Kuhlia on the west 
coast of tropical America renders it more likely that K. xenura is an American fish. 
Genus XXX. — MOEOXE. 
Morone Mitchill, Fishes of New York, 18, 1814 (rufa=americana). 
Morone Gill, Proc. Ac. Nat. Sci. Phila., 1860, 111 (americana). 
Type. — Morone rufa Mitchill = Perea americana Gmelin. 
Etymology . — Unexplained. 
This genus or subgeuus contains two known species, both American. 
ANALYSIS OF SPECIES OF MOKONE. 
Common characters : Lower margin of preopercle simply serrate or entire, the serrse not greatly in- 
creasing in size toward the angle, and none of them developed as antrorse hooks. Base of 
tongne without teeth ; edge of tongue with linear patches of teeth ; dorsal fins more or less 
connected hy membrane; second anal spine much enlarged, not shorter than third; anal 
rays III, 8 or 9 ; lower margin of preopercle finely serrate ; lower jaw slightly projecting; 
body not elongate ; vertebriE 11 14 =25 (americana). 
a. Color in life brassy yellow, with about seven very distinct longitudinal black lines, those below 
the lateral line interrupted posteriorly, the posterior part alternating with the anterior; 
body oblong-ovate, the back much arched; head depressed, the snout somewhat pointed, 
the anterior profile concave; eye large, as long as snout, 4^ in head; preorbital hnely ser- 
rate; suprascapula serrate; mouth small, somewhat oblique, the maxillary nearly reaching 
middle of orbit, about 3 in head ; maxillary somewhat scaly; gill-rakers moderate, x-|-13; 
dorsal and anal spines very robust, the longest dorsal spine If in head, the longest anal spine 
2J ; dorsal fins slightly connected. Head, 3 in length ; depth, 2f . D. IX, I, 12 ; A. HI, 9. 
scales, 50 Interrupta, 114. 
aa. Color olivaceous, varying to dark green; sides silvery or olivaceous, with faint, paler streaks ; 
body oblong-ovate, the back elevated, but less so than in the preceding ; head depressed 
above eyes ; the snout rather pointed; mouth small, the maxillary not reaching middle of 
orbit, 2f in head ; preorbital entire ; eye moderate, scarcely as long as snout, 4 in head ; gill- 
rakers 4 -|- 14, rather long ; dorsal and anal spines moderate, the longest dorsal spine 2 in 
head ; the second anal spine 2^ ; dorsal fins considerably connected. Head, 3 in length ; depth, 
3. D. IX, I, 12 ; A. Ill, 8 or III, 9. Scales, 8-50-9 Americana, 115. 
114. MORONE INTERRUPTA. 
(The Yellow Bass.) 
Labrax chrysops Girard, Pacific Railroad Expl., 29, pi. XI, figs. 1-4, 18.59 (St. Louis ; New Orleans) (not 
of Eafinesque). 
Morone interrupta Gill, Proc. Acad. Nat. Sci. Phila., 1860, 118 (St. Louis; New Orleans); Jordan, 
Annals N. Y. Ac. Sci., IV, No. 4, 97, 1876 (Miss. R.); Gill, Ichth. Rep. Capt. Simpson’s Sur. 
Great Basin Utah, 398, 1876 ; Jordan & Braytou, Bull. U. S. Nat. Mus., 1878, 83 (Ohio and 
Illinois Rs. ); Jordan & Gilbert, Syn. Fishes N. A., 530, 1883; Nelson, Bull. Ills. Mus. Nat. 
Hist., 1876, 36; Jordan, Fishes Ills., 1877, 44 (Illinois R.; Mackinaw Creek ; Cairo, Ills.); 
Jordan, Man. Vert. E. U. S., 137, 1888. 
lioccus interruptus Jordan, Geol. Sur. Ohio, 956, 1882; Jordan, Nat. Hist. Aquat. Aus., 431, 1884 (not 
Perea mitchilli interrupta Mitchill = Rocous lineatus). 
Morone mississippiensia Jordan & Eigeumann, Proc. Ac. Nat. Sci. Phila., 1887 (substitute name for 
interrupta, regarded as preoccupied). 
Habitat . — Lower Mississippi Valley, north to Cincinnati and St. Louis, chiefly in 
the channels of the larger streams. 
Etymology. — Mississippiensis, pertaining to the Mississippi. 
