124 TELEOSTEI: ACANTHOPTEEI. — XX. 



j. Scales about 5-50-9; D. IX-12; lateral line often incomplete behind; 

 fins moderate. 



326. E. nigrum Kafinesque. "Johnny." Body slender, fusi- 

 form; snout somewliat decurved; mouth small, sub-inferior; pale 

 olive, back speckled with brown ; sides with numerous W-shaped 

 blotches ; males in spring dusky anteriorly, sometimes entirely black. 

 Head 41; depth 5. D. IX-12. A. I, 8. Vert. 15 -|- 22 = 37. 

 L. 2^. Dakota to W. Penn. and Mo., very abundant in small 

 brooks. (Boleosoma maculalum Agassiz.) 



yy. Scales about 5-40-6; dorsal rays IX -13; lateral line complete; 

 fins very high. 



327. E. effulgens (Girard). Snout much decurved ; brown, with. 

 9 spots on side ; fins black ; 2d D. and C. vrith white specks. Head 

 A\; depth 5\. L. i\. Penn. to N". C, probably a variety of B. 

 nigrum. (? B. cesopus CoTpe ; D. Vn-14.) (Lat., shining.) 



hh. Soft dorsal with 10 or 11 rays. 

 i. Cheeks naked; opercles scaly; scales 4-35-6. 



328. E. vexillare Jordan. Body rather stout; nape naked; 

 snout decurved ; fins very high ; ^ dusky olive, faintly barred ; 

 2d D. and C. with pale spots ; other fins mostly black. Head 4 ; 

 depths. D. Vni-10. A. I, 7. L. 2f Rappahannock K., Va., 

 one specimen known. (L., bearing a standard.) 



ii. Cheeks and opercles wholly naked; scales in lateral line 45. 



329. E. susanse (Jordan & Swain). Very slender; head short 

 and small, the snout decurved ; head, nape, breast, and middle of 

 belly naked ; fins low. Color of E. nigrum. Head 4^ ; depth 6 J. 

 D. Vni-10. A. I, 8. L. 2. Cumberland E., abundant in S. Ky. 

 (To Mrs. Susan Bowen Jordan.) 



gg. Lateral line ceasing near middle of body. (Vaillantia i Jordan.) 



330. E. chlorosoma (Hay). Body slender, with long tail ; back 

 somewhat elevated ; mouth small, inferior, the snout strongly de- 

 curved ; cheeks, opercles and breast scaly, nape naked ; fins small. 

 Olivaceous, the back spotted ; about ten dark spots on sides ; a dark 

 opercular spot ; head spotted above; D. and C. barred. Head 4J-; 

 depth 5^. D. X-10. A. 1, 8. Scales 5-56-10. Vert. 38. L. 2^. 

 HI. to Ala. and Ark., common S. W. (^Boleosoma camurum Forbes). 

 (pfXcopof, green ; a-Siiia, body.) 



jy. Anal spines two, well developed, the first usually the longer. 



m. Gill membranes more or less broadly united ; belly with ordinary 

 scales. 

 n. Maxillary normal, free from the preorbital. (TJlocentra ^ Jordan.) 



1 To L6on Vaillant, author of n monograph of the Dai-ters. 

 * 0CA09, complete ; weVrpor, spine. 



