1060 Bulletin 47, United States National Museum. 



for Mrs. Susan Bo wen Jordan, who was interested in life studies of the 

 darters.) 



Boleosoma susane, JORDAN & SWAIN, Proc. U. S. Nat. Mus., 1883, 249, Wolf Creek and other 

 tributaries of the Clear Fork of Cumberland River, near Pleasant View, "Whit- 

 ley County, Kentucky (Type, No. 36501. Coll. Gilbert & Swain); BOULENGER, Cat., i, 94. 



Subgenus VAILLANTIA, Jordan. 

 1448. BOLEOSOMA CAMURTJM, Forbes. 



Head 4 to 4 ; depth 5$ to 6J. D. IX or X-10 or 11 ; A. I, 7 or 8 ; scales 

 5 or &-56 to 65-11, pores about 20 to 30. Body slender, moderately com- 

 pressed, with long caudal peduncle. Back somewhat elevated. Head 

 small, rather slender, the snout shorter than eye, strongly decurved. 

 Eye 4 in head. Mouth inferior, horizontal, small, the maxillary extend- 

 ing nearly to middle of eye. Gill membranes little connected. Cheeks, 

 opercles, and breast closely covered with rather large scales ; median line 

 of neck naked ; opercular spine strong ; scales moderate ; lateral line 

 quite short, nearly straight, reaching to middle of the spinous dorsal, 

 developed on 20 to 30 scales. Fins small, the dorsals well apart ; first 

 dorsal larger than the second, which is larger than the small anal ; pec- 

 toral as long as head. Coloration much as in Boleosoma nigrum, but 

 rather paler, olivaceous ; back spotted and tessellated ; sides with about 

 10 irregular spots; a dark spot on opercles; head spotted above; a black 

 line across the muzzle ; no bar below eye ; dorsals and caudal fin finely 

 barred. Length 2J inches. Indiana and Iowa to Alabama and south- 

 west to Houston, Texas ; common in Arkansas and southward in sandy 

 streams, (camurus, snub-nosed.) 

 Boleosoma camura, FORBES, Bull, n, 111. Lab. Nat. Hist., 40, 1878 (name preoccupied in Etheostoma, 



but not in Boleosoma), streams of Illinois (Coll. Forbes); BOULENGER, Cat., i, 96. 

 Vaillantia chlorosoma,* HAY, Proc. U. S. Nat. Mus., 1880, 495, tributary of Tuscumbia River 



at Corinth, Mississippi, Sandy Creek at Artesia, Mississippi, and Horsehunter 



Creek at Macon, Mississippi. (Type, No. 27428. Coll. Hay.) 

 Vaillantia camura and chlorosoma, JORDAN & GILBERT, Synopsis, 494, 1883. 



472. CRYSTALLARIA, Jordan & Gilbert. 



Crystattaria, JORDAN & GILBERT, in JORDAN, Cat. Fishes N. A., 78, 1885, (asprella). 



Body slender, elongate, subcylindrical, pellucid in life; scales small, 

 rough ; lateral line complete. Mouth small ; premaxillaries not protrac- 

 tile ; teeth on jaws and vomer ; cheeks and opercles scaly ; opercle with 

 a strong spine, gill membranes somewhat united; branchiostegals 6. 



* The following is the substance of Dr. Hay's account of Boleosoma chlorosoma : 



Boleosoma chlorosoma (Hay). Head 4%; depth B%, D. IX-11; A. I, 7 or I, 8; lateral line 50 



> M). Body slender, compressed, the dorsal region much arched. Caudal peduncle long and 



slender, the body abruptly contracted at the vent. Head small, convex in profile. Cheeks and 

 es scaled. Breast scaled or naked. Dorsals separated by a distance equal to half the head, 



aDout equal to each other, larger than the anal. Lateral line developed on 4 to 20 scales. 



greenish yellow, with many blotches and zigzag markings of brown; a row of about 10 of these 



blotches along each side, most distinct on caudal peduncle; about 8 square brown dorsal spots. 



Le P th 2* 2 i pe ular 8pot> aud wbocular spot black. A black streak from eye to snout. 



