526 CONTRIBUTIONS TO NOETH AMERICAN ICHTHYOLOGY IV. 



Jordan, Bull. U. S. Nat. Miis. x, 47: Stizoslethium vitrevm var. salmoneum 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.) 



aa. Pyloric cceca small, unequal, 4 to 7 in number. {Cynoperca Gill & Jordan.*) 

 §2§. S. caBBadeaaset (Smith) Jor. — Sanger; Sand-pike; Gray-pike; Horn-fish. 



Olive gray above, sides brassy or pale orange, with raiicli dark mot- 

 tling 5 young pale orange with large dark lateral shades ; spinous dorsal 

 with li or 3 rows of round black spots ; no distinct black blotch on 

 the posterior part 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 3J 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 cceca 4-7, smaller than in 8. mtreum. 

 L. 15 inches. Great Lake region, Upper Mississippi and Ohio Eivers. 



(Lucioperca canadensis C. H. Smith, MSS. in Griffith's edition Cuvier's Animal King- 

 dom, X, 275, 183G: Lucioperca canadensis Giinther, i, 75: Lucioperca grisea DeKay, N. 

 Y. Fauna, Fishes, 1842, 19; Lttcioperca grisea Giinther, i, 70; Jordan, Bull. U. S. Nat. 

 Mus. X, 48 : Lucioperca lorea Grd., Proc. Acad. Nat. Sci. Phila. 1857.) 



Family LXXXVI.— SERRANIDiE. 



{The Sea Bass.) 



Body oblong or elongate, more or less compressed, 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 supi^lemental bone, its posterior 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 bands of villiform teeth; tongue 

 sometimes with teeth; pterygoids toothless. Gill-rakers usually stiff and 

 rather long, armed with teeth. Gills 4, a long slit behind the fourth. 

 Pseudobranchioe large. Lower jiharyngeals separate, rather narrow, 



*Jordan, Bull. U. S. Nat. Mus. x, 48: tj^pe Lucioperca canadensis Smith, nvov, dog; 

 TtEpxrj, perch. 



t Three varieties of this species may usually be recognized: 



a. Var. canadcnse, of the St. Lawi-ence 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 intergrade and are doubtless varieties of the same species. 



