262 REPORT OF STATE GEOLOGIST. 



Lepomis EURYORU8 McKay. 



McKay, 1881, 33, 89; Kirsch, 1894, 4, 38. 



This species was originally described from a single specimen taken at 

 Fort Gratiot, on Lake Huron, Michigan. Bollman (11, '88, 576) did not 

 regard it as a distinct species, considering it to have been probably based on 

 an old example of L. gibbosus. On this point he was doubtless mistaken. 

 Mr. Lewis McCormick (15, 27) has more recently taken nine sjiecimens 

 of it in Lorain County, Ohio, and Dr. T. A. Bean has stated that there is 

 another specimen of it in the National Museum from Minnesota. Re- 

 cently Prof. P. H. Kirsch has secured three more specimens in the Eel 

 River basin in Whitley County (4, '94, 381). 



The general appearance of the fish resembles that of L. cyanellus. 

 Depth in the length two to three times ; head in the length two and one- 

 half times. The mouth large, quite oblique, the lower jaw projecting 

 considerably beyond the upper. The membranous ear-flap rather large 

 in the adults and with a broad margin, narrower in smaller specimens. 

 Dorsal rays X, 11; anal rays III, 10. The dorsal spines rather low. 

 Scales, 7-48-15 ; six or seven rows of scales on the cheeks. Eye rather 

 small; six in the head. The pharyngeal teeth are bluntly conic. Scales 

 5-43-11. The color is a nearl}^ plain greenish. The ear-flap has a broad 

 pale margin. The tail and the lower fins are sometimes margined with 

 orange. 



Genus MICROPTERUS LaC6pede. 



Body elliptical and moderately compressed ; not so deep as most of the 

 species of the family. Mouth large, oblique ; the maxillary with a large 

 supplemental bone. Teeth on the vomer and palatines. Lower jaw pro- 

 jecting beyond the upper. Branchiostegals, 6. Dorsal spines 10; anal 

 spines 3. A notch between the spinous and the soft portions of the dor- 

 sal fin. 



1. With about eleven rows of scales between the lateral line and the 



dorsal fin. dolomieu, p. 262. 



2. With seven or eight rows of scales between the lateral line and 



the dorsal fin. sahnoides, p. 264. 



MiCROPTERUS DOLOMIEU (LaC). 



Sunall-mouihed Black Bass. 



Jordan and Gilbert, 1882, 8, 485; Jordan, 1884, IS, 401, pi. 148; 

 Henshall, J. A., Booh of the Black Bats. 



Body oblong and somewhat compressed. Dej)th in the length about 

 three and one-half times ; the young more slender. Head in the length 

 three to three and one-half. Mouth moderately large, the maxillary 



