85. PERCID.E — PCECILICHTPIYS. 517 
XI-13; A. II, 7; scales 8-5G-11. L. inches. Tonihigbee Eiver, 
Mississippi. {Say.) 
(Hay, Proc. U. S. Nat. Mus. 1880, 494.) 
ih. Humeral scale obsolete. 
d. Opercles and cheeks naked ; preopercle crenulate; anal spines very long. 
§10. *P. lepidtis (B. & G.) Grd. 
Body rather stout, compressed, tapering backwards. Head sub- 
conical. Month moderate, with equal jaws; maxillary reaching front 
of orbit. Eyes large. First dorsal rather low; dorsal fins somewhat 
connected. Head, as well as throat and neck, entirely scaleless. Color 
olivaceous, with some dark (blue ?) bars; scales dusky at base; dorsals 
and caudal mottled or barred. Head 4^; depth 4;|. 1). IX-li ; A. li, 
0; scales in about oO series. L. 24 inches. Texas. 
(Boleosoina Upida B. & G. Proc. Acad. Nat. Sci. Phila. 388, 1833; Girard, U. S. Mex. 
Bound. Surv. Iclith. 1859, 11: Oligocephahis lepidtis Grd. Proc. Acad. Nat. Sci. Phila. 
1859, 67 : Boleosonia hpidiim Gunther, i, 77.) 
dd. Opercles scaly; preopercle strictly entire ; anal spines moderate, 
c. Lateral line nearly straight. 
f. Cheeks naked, or with only 3 or 4 small imbedded scales close behind eye. 
§11. P. coeruSems (Storer) Agassiz . — Blue Darter ; Rainhoiv Darter; Soldier-Jish. 
Body robust, rather deep and compressed, the back somewhat ele- 
vated. Head large, compressed. Mouth moderate, terminal, oblique, 
the lower jaw somewhat included, the maxillary reaching front of orbit. 
Palatine teeth in one row. Neck and breast usually naked. Fins all 
large; dorsal tins usually slightly connected. Males olivaceous, tessel- 
lated above, the spots running together into blotches; back without 
black lengthwise stripes ; sides with about 12 indigo-blue bars running 
obliquely downwards and backwards, most distinct behind, separated 
by bright orange interspaces; caudal fin deep orange, edged with bright 
blue; anal fin orange, with deep bine in front and behind; soft dorsal 
cbiefly orange, blue at base and tip; spinous dorsal crimson at base, 
then orange, with blue edgings; ventrals deep indigo; cheeks bine; 
throat and breast orange; females inncli duller, with little blue or red, 
the vertical fins barred or checked; young variously marked. Head 
3| ; depth 44 . D. X-12; A. H, 7; scales u-45-8, the lateral line devel- 
oped on about 30-35 scales. L. 2J inches. Mississippi Valley; very 
* Four more nominal si^ecies of this type are described by Girard (Proc. Acad. Nat. 
Sci. Plida. 1859, 102) under the names Ap^csiow jjotsii, OUgoecphalus f/rahami, 0. leoncn- 
sis, and Q. puleheUus; the first from Cliibuabua, the next two from Texas, the latter 
from Canadian River. A. poisii has I). X-I, 11; 0. graharni has D. IX-13; A. II, 8; 
O. leonensits D. IX-10; A. II, 7; O. pitlcheUns A. II, G. All are probably identical with 
F. lepidtis. 
