26^ REPORT OF STATE GEOLOGIST. 



aa. Middle of belly with ordinary scales posteriorly ; an- 

 teriorly with somewhat enlarged scales, or with a naked 

 strip {Lnostmia). 

 h. Dorsal rays X, 15. shumardi, p. 270. 



bl\ Dorsal rays XI, 13. uranidea, p. 270, 



BOLEOSOMA NIGRUM (Raf.). 



Johnny 



Jordan and Gilbert, 1882, 8, 492. 



Body elongated, little compressed. Dgpth in length, five to five and 

 one-half. Head *short, in the length about four times. Snout jiointed, 

 the profile descendicg gradually from the occiput to the snout. Eyes 

 high up ; mouth small, horizontal, a little inferior, the maxillary reach- 

 ing back to the perpendicular from the pupil. Premaxillaries protrac- 

 tile. Lateral line complete, or missiug on a few of the hindermost scales. 

 No enlarged scales on the middle of the belly. Opercles scaly ; cheeks 

 naked or scaly. Scales 4-50-7. Dorsal rays IX, 12 to 14; anal rays I, 

 8 or 9. Color pale olive, with about eight square blotches of brown; 

 sides with numerous W-shaped markings. Male sometimes nearly black. 

 Length two and one-half inches. 



Massachusetts to Dakota and south. Found everywhere in clear 

 streams in Indiana. Carroll County (2o, '88, 50) ; Marshall County (33, 

 '88, 55; 4, '88, 59, 156) ; Clark and Ohio '-.ounties (^J, '88, 56) ; Frank- 

 lin County (J, No. 2, 7) ; Monroe County (i, '85, 411) ; Marion County 

 (i, '77, 375); Lawrence County (33, '84, 204); Parke County U, '88, 

 105) ; Cass and Whitley counties (4, '88, 159) ; Knox, Gibson and 

 Posey counties (4, ''"^8, 164); Owen County (4, '88, 167) ; Vigo County 

 (16, '96) ; Eel Kiver basin (4, '94, 39). See for a few additional locali- 

 ties ;^4, '93, 101. 



This species, like the others belonging to the family, delights in clear 

 water. It may, at almost any time, be seen darting about or resting 

 quietly on the bottom. 



BOLEOSOMA CHL0R080MA (Hay). 



Vaillantia chlorosoma and V. camura, Jordan and Gilbert, 1882, 8, 494. 



Body rather long and slender, especially the caudal peduncle. Depth 

 in the length about five and one-half times. Back somewhat elevated. 

 Head small, the profile convex, descending rapidly in front of the eye. 

 Snout shorter than the eye. Mouth small, somewhat inferior. Lateral 

 line incomplete, the pores missing on the hinder half f)f the body. 

 Cheeks, opercles and breast scaly. Scales 5-56-10. Dorsal rays 

 IX, 11, or X, 10. Anal, I, 8. Color greenish yellow, with many 



