Storefs Synopsis of the Fishes of North America. 173 



20. Catostomus Sueurii, Rich. 



Back, sides, and gill-covers wood-brown, reflecting, when opposed to the light, many bril- 

 liant tints, in which emerald-green and gold-yellow predominate ; bases of the scales bluish 

 gray, producing an appearance of reticulation ; belly reddish white. The dorsal has the hue 

 of the back, with a reddish margin ; the other fins are almost all entirely red. Scales very 

 large, quadrangular. Forty-seven scales on the lateral line. Air-bladder divided into three 

 portions, the central one the largest. 



D. 14. P. 16. V. 9 or 10. A. 9. C. 18§. Length, 19 inches. 



Northern Regions, Richardson. 



Cyprinus (Catostomus) Suerii, Picconow, Kich., Fauna Boreal. Americ, m. p. IIS. 



Catostomus Sueurii, Dekat's Report, p. 203. 



Le Catostome de Lesueur (Catoslomus Sueurii, Rich.), Ccv. et Vat.., ivii. p. 4G5. 



21. Catostomus elegans, Dekay. 

 Above dsrk bluish ; beneath whitish, with pinkish suffusions along the abdomen. Head 

 brilliant green, passing into yellowish and golden on the opercles. Dorsal and anal brown ; 

 pectorals and ventrals faint orange ; caudal rosaceous. Dorsal subquadrate, rounded above. 

 Scales large, with from three to six radiating impressed lines, crossed by others waved and 

 concentric. 



D. 12. P. 15. V. 9. A. 8. C. 17. Length, 8 inches. 

 New York, Dekat. 



Labeo elegans, New York Chub Sucker, Dekav's Report, p. 192, pi. 31, fig. 100. 



22. Catostomus esopus, Dekat. 



Back elevated. Scales large, oblong, the triangular area on the free portion with four ra- 

 diating lines, the interstices between these lines with concentric wrinkles. Lateral line not 

 obvious. Snout prominent. 



D. 12. P. 16. V. 9. A. 7. C. 19^. Length, 10 inches. 



New York, Dekay. 



Labeo esopus, Round-backed Chub Sucker, Dekay's Report, p. 195. 



23. Catostomus Oneida, Dekat. 



Dark bluish brown above ; lighter on the sides ; whitish beneath. Back gibbous, with 

 two short subspinous rays to the dorsal fin. Head smooth, with numerous mucous po 

 Scales very large. Seventeen in an oblique series from the dorsal fin. 



D. 2-13. P. 15. V.9. A. 8. C. 18;!. Length, 12 inches. 



Lake Oneida, Dekay. 



Called "Sucker," and " Mullet," at Lake Oneida. 



Catoslomus Oneida, Oneida Sucker, DsjCAY's Report, p 198. 



