56 Storer's Synopsis of the Fishes of North America. 



10. Cottus asper, Richardson. 



Colors Generally grayish white; top of the head, back, and sides, studded with small elove- 

 brown spots, in some places confluent, and forming patches. Pectorals, dorsals, and caudal, 

 marked with transverse rows of clove-brown spots. Under parts whitish, with minute 

 specks. The skin of the head smooth to the touch, but dotted with minuts soft warts. The 

 greater portion of the upper part of the body thickly studded with very small, subulate, 

 acute spines, directed backwards. 



B6-6. D.9-21. P. 16. V. 1-4. A. 18. C. 9f. Length, 9 inches, 6 lines. 



Columbia River, Richardson. 



Coitus asper, Prickly Bullhead, Rich., Fauna Boreal. Americ, in. p. 295. , r -< /i c -?Q j i 



11. Cottus porosus, Val. 



Above grayish, marbled with plumbeous ; head lighter. The lateral line is formed of a 

 series of small elevated tubes, pierced at their extremity, which serve as pores. Above and 

 beneath this, and near the orifice of each pore, are seen the openings of smaller pores. A 

 creat number of others upon the top of the head, the temples, and along the suborbitars. 

 Between the lateral line and the dorsal fin is a series of small bony plates. This species re- 

 sembles the C. scorpius of Europe in the armature of the top of the head and gill-covers, 

 and C. Groenlandicus or scorpioides in the great number of its dorsal rays. 



D. 11,1-16. P. 18. V. 1-3. A. 13. C.17. Length, 6 inches. 



Baffin's Bay, Cuv. 



Le Chaboisseau poreux, Cottus porosus, Cuv. et Val , vm. p. 193. 



" " Porous Bull-head, Rich., Fauna Boreal Americ, in. p. 47. 



" " Dekay's Report, p. 55. 



12. Cottus Mitchilli, Cuv. 

 Yellowish, with confluent bars and blotches ; all the fins with interrupted black bars. Or- 

 bits unarmed. Preopercle with four spines. 



D. 10-4. P. 16. V. 3. All. C. 9|. Length, 3 inches. 

 New York, Mitchill, Cuv., Dekay. 



Cottus scorpio? Mitchill. Trans. Lit and Phil. Soc. of N. Y., I. p 381. 

 Cottus Mitchilli, Cuv. et Vai„, rv. p. 188. 

 " " Smoothurowed Bullhead, Dekay's Report, p 53, pi. 17, fig. 47. 



GENUS V. ASPIDOPHORUS, Lacep. 

 Body octagonal, covered with scaly plates ; head thicker than the body, 

 with points and depressions above, flattened below ; teeth in both jaws only, 

 none on the vomer ; snout with recurved spines ; branchiostegous rays, six ; 

 body tapering to the tail ; one or two dorsal fins distinct. 



