1906.] NATURAL SCIENCES OF PHILADELPHIA. 513 



MICROPTERIDu^. 



This name supersedes Centrarchidce as Centrarchus Cuvier, Hist. Nat. 

 Poiss., Ill, 1829, p. 62 (type Cychla cenea Le Sueur by first species = 

 Bodianus riipestris Rafinesque), and is therefore a synonym of Am- 

 bloplites Rafinesque. This leaves Eucentrarchus Gill, Amer. Journ. 

 Sci. Art., XXXVn, 1864, p. 93 (type Labrus irideus Lacepede = 

 Lahrus macropterus Lacepede) as the proper name for the round bass, 

 with the subfamily name changed from Centrarchince to Eucentrar chinos. 

 Therefore as Micropterus Lacepede is the oldest genus in this family 

 the above name may be framed for it. 



I have also examined Elassoma zonatum Jordan. Elassotna probably 

 represents a distinct family, as has been contended. 

 Fomozis annularis Rafinesque. 



Sedaha and St. Joseph, Mo. (Drs. D. S. Jordan and S. E. Meek); 

 White River, Ark. (Drs. D. S. Jordan and C. H. Gilbert); Leaven- 

 worth, Kan. (E. D. Cope). Both this and the next show some 

 variation. 



Fomoxis sparoides (Lac^p^de). 



Davenport, la. (Dr. S. E. Meek); lower James River, Va. (E. D. 

 Cope); Lake Huron (E. D. Cope) ; Leavenworth, Kan. (E. D. Cope); 

 Sandusky, O. (Smiths. Inst.); South Carolina (Dr. J. E. Holbrook); 

 New Orleans, La. (J. M. Florat); Neuse River, N. C. (E. D. Cope). 



Hucentrarchus macroptems (Lac^p^de). 



North Carohna (U. S. N. Mus.); South Carolina (Dr. Blanding); 

 Bayport, Fla. (E. D. Cope). 



Ambloplites rupestris (Rafinesque). 



Richmond, Miami and Wabash Rivers, Ind. (E. D. Cope); Brook 

 River and Michigan City (E. D. Cope), and Fort Dodge, la. (Dr. S. E. 

 Meek) ; Detroit, Mich.? (E. D. Cope); Lake Superior (Dr. J. H. Slack); 

 Wisconsin (Smiths, Inst.); Blue River, Ind. (E. D. Cope); Holston 

 and lower James Rivers, Va. (E. D . Cope) ; Cumberland River, 

 Tenn. (E. D. Cope) ; French Broad and Yadkin Rivers, N. C. (E. D. 

 Cope) ; Lake George, N. Y. (W. S. Vaux) ; Texas (Dr. S. W. Wood- 

 house). 

 Ambloplites rupestris oavifrons (Cope). Fig. 2. 



Ambloplites cavijrons Cope, Journ. Acad. Nat. Sci. Phila., VI, 186()-69 

 (December, 1868), p. 217. Tyge, No. 12,803, A. N. S. P. Headwaters 

 of the Roanoke River, Montgomery county, Va. E. D. Cope. 



Width of head 2f in its length; inter orbital space 4^ in head, meas- 

 ured from tip of upper jaw. Lips rather fleshy laterally. Rami of 

 mandible well elevated inside mouth. Teeth small, curved, pointed, a 



