526 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 
Jordan, Bull. U. S. Nat. Mus. x, 47: Sfhosiethium vitreum var. sahnoneum Jordan, Man. 
Vert, ii, 230, the “Blue Pike,” a local variety in Ohio and southward; bluer, with the. 
body shorter and deeper, the size smaller.) 
Art. Pyloric cceca small, unequal, 4 to 7 in number. (Ci/noperca Gill & Jordan.*) 
82§. S. <*siDjadCBaset (Smith) Jor. — Sauger; Sand-pike; Gray-pike; Horn-fish. 
Olive gray above, sides brassy or itale orange, with much dark mot- 
tling ; young pale orange with large dark lateral shades ; spinous dorsal 
with or 3 rows of round black spots; no distinct black blotch on 
the posterior i)art of the fin ; a large black blotch at base of pectorals ; 
second dorsal with about 3 rows of irregular dark spots ; caudal dusky 
and yellowish. Body elongate, more terete than in the preceding. Head 
quite pointed, depressed, about 3i in length ; depth 4^5. Eye small, 
5 in head. Opercular spines varying in number and size. D. XIII-I, 
18; A. II, 12; Lat. 1. 95. Pyloric coeca 4-7, smaller than in S. vitreum. 
L. 15 inches. Great Lake region. Upper Mississippi and Ohio Hi vers. 
(Luciopcrca canadensis C. H. Smith, MSS. in Griffith’s edition Cuvier’s Animal King- 
dom, X, 275, 183G : Lucioperca canadensis Gunther, i, 75: Lucioperca grisea DeKay, N. 
Y. Fauna, Fishes, 1842, 19; Lucioperca grisea Gunther, i, 7(! ; Jordan, Bull. U. S. Nat. 
Mus. X, 48 : Lucioperca horea Grd., Proc. Acad. Nat. Sci. Phila. 1857.) 
Family LXXXVI.— SERRANIDiE. 
{The Sea Bass.) 
Body oblong or elongate, more or less comjtressed, covered with adher- 
ent, ctenoid (rarely smooth) scales of moderate or small size. Mouth 
horizontal or little oblique, usually large. Premaxillary protractile. 
Maxillary broad, with or without a supidemental bone, its itosterior part 
not slipping under the edge of the preorbital. Jaws with bands of teeth, 
some of the teeth sometimes enlarged and canine-like; no incisors nor 
molar teeth; vomer and palatines with bauds of villiform teeth; tongue 
sometimes with teeth ; pterygoids toothless. Gill-rakers usually stifi' and 
rather long, armed with teeth. Gills 4, a long slit behind the fourth. 
Pseudobrauchi® large. Lower pharyngeals separate, rather narrow, 
* Jordan, Bull. U. S. Nat. Mus. x, 48: type Lucioperca canadensis Smith, hvov, dog; 
Ttepnr}, perch. 
t Three varieties of this .species may usually be recognized: 
a. 'Vox. cunadcnse, of the St. Lawrence region, with the opercles and bones of the head 
considerably rougher, the number of opercular spines, which are merely the free 
ends of the striae, increased ; the head is also more closely and extensively scaly ; 
h. Var. griseum (DeKay), the common form of the Great Lake region, described above ; 
and 
c. Var. borcum Grd. from the Upper Missouri region, with the head slenderer. 
These forms intergradc and are doubtless varieties of the same species. 
