GOG CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY IV. 



backward on botli sides of the lateral line to the middle of the second 

 dorsal, the baud narrower and the prickles smaller posteriorly. 



(Cottoim* giilosun Grd. Proc. Acad. Nat. Sci. Phila. .1854, 129: Centridcrmichttiys 

 guloHitx (iiintluT, ii, 170.) 



1058. U. punctulata (Gill) Cope. 



Light olivaceous ; body covered with small black spots, which become 

 larger and more scattered behind; soft dorsal, pectorals, and caudal 

 thickly spotted; spinous dorsal without dark blotch. Head long and 

 wide. Mouth quite large; maxillary reaching past front of orbit; 

 preopercular spine strong, directed obliquely backward and upward. 

 Head 3; depth5. D. VIII-17; A. 13. (Gill.) Bridgets Pass; distin- 

 guished from the other species by the speckled coloration. 



(Poiamocottus punctnlaliis Gill, Proc. Bost. Soc. Nat. Hist. 1861, 40, and in Ichth. 

 Capt. Simp. Expl. 187G, 402.) 



1059. U. bcndirci (Bean) J. & G. 



Uniform dark brown above, lighter below. Maxillary extending just 

 beyond front of eye; eye 4 in head; preopercle with 4 spines, the upper 

 one half as long as the eye. Pectorals reaching origin of anal; ven- 

 tral s not to vent. Depth 4. D. VIII-1G; A. 12; V. I, 3. Walla- Walla, 

 Wash. (Bean.) 



(Putamocottu8 lendirei Bean, Proc. U. S. Nat. Mus. 1881, 27.) 



1060. U. ricSiardsoni (Agassiz) J. & G. Miller's Thunib; Slob; Muffle-jaw ; 

 Bull-head. 



Olivaceous, more or less barred and speckled with darker; tins 

 mostly barred or mottled. Body slender or stout, tapering regularly 

 backward to the tailj vertex somewhat depressed; interocular space 

 with a groove; preopercle with a short sharp spine, little hooked, 

 directed backwards and upwards, mostly covered by the skin; below 

 this are l* smaller concealed spines; suhopercle with a stmitish spine, 

 directed forwards. Skin smooth, except the region immediately behind 

 the pectorals, which is beset with very small sharp prickles which are 

 sometimes obsolete; lateral line conspicuous, continuous or interrupted 

 behind; lirst doi>al low and feeble; pectoral tins large, their leng:h 

 nearly equal to that of the head, their tips usually reaching beyond the. 

 origin of the soft dorsal; ventral tins moderate; isthmus very broad, 

 the gill-membranes not forming a fold across it. Head ."..\ : depth 4-(J. 

 1). VI to VIII-lGor 17; A. aboul 11': V. 1,4. L. 3-7 inches. Middle 

 and Northern States, abounding in all clear rocky brooks and lakes; 

 extending southward along the Alleghanies to Alabama. 



