16 DESCRIPTION OF A NEW FISH. 



on the belly, more clearly defined near the caudal than 

 the pectoral fins. Intervening spaces whitish, shaded with 

 led. Each scale is frequently dotted with a brown, rhom- 

 boidal spot, darker on the side and back than on the 

 abdomen. 



Throaty bright reddish orange, which grows fainter 

 behind the pectorals. 



Anterior dorsal semi-circular, margined above with a 

 greenish blue stripe, which is bordered below with another 

 of orange, succeeded by white, brown and blue to the 

 back. 



Posterior dorsal rhomboidal, pellucid on the margin, 

 below which is a clear blue band, the remainder pellucid, 

 striped perpendicularly between the rays with orange and 

 the rays pencilled transversely with fine lines of blue. 



Pectorals translucent, pale red at their base. 



Abdominals pellucid, inner margins, near the base, 

 orange colored. 



Anal Fin. Base and margin bluish, remainder pale 

 orange. 



Caudal Fin. An interrupted orange band at the base, 

 margin above and below blue, the rays transversly marked 

 with fine blue lines. Scales on the body and operculum, 

 examined by aid of a microscope, exhibit serrations on 

 their posterior margins. 



Rays.— Ant. Dor. 10. Post. Dor. 12. Pec. 14. Abd. 7. 

 Anal 9. Gaud. 16. 



Length 2 inches. 



Habitat — Rocky River, seven miles west of Cleveland. 



Observations. — The habits of this species are similar to 

 others of the family Etheostoma. It inhabits shoals and 

 rapid parts of the stream. In its general appearance it 

 resembles the Etheostoma variatum I^oh. (Poecilosoma 

 variatum of Agassiz.) but the colors are less brilliant and 

 is less in size and more regular in its contour. 



The colors of all the species of Etheostoma are far more 

 brilliant in the spring than during the summer or autumn. 



