87 



rr'tonotus p'datus, 8torer, i'roe. Isoston Xat. Hist, II, p. 77, 

 and Ee])ort Fishes Massacli., p. 20, j)!. 0, fig. 1; Baird, ninth 

 »Smithson. Report, p. 321. 



— carolmus, Cuv. & Val., Ill, p. *J0: Storer, Report, p. 

 14; DeKay, NeAv York Fauna, Fishes, ]>. 4G, pi. 5, fig. 15. 



Not uncommon about the mouth of the Potomac River, in 

 Hinepuxent Bay, and along the eastern shore south of Tan- 

 gier Sound. 



Acad. Coll. S. I. 



XX— COTTIDH. 



UllANIDEA. 



1— U, meridionalis. 



Barbnt, or Miller's Thumb. 



Form somewhat cylindrical, tapering posteriorily; head 

 hroader, forming nearly one-fonrtli of tlie total length, and 

 being about as broad as long, rounded in front; with three 

 spines on the forward gill-cover, the upper one stout, directed 

 obliquely upwards and backwards ; the intermediate one 

 smaller, directed A^ertically downwards, and the lower one, 

 still smaller, projecting obliquely forwards; the first dorsal 

 fin commences a little behind the insertion of the ventral, its 

 upper edge convexly curved; caudal fin shorter than the 

 head, its posterior edge convex; color pale yellowish-gray, 

 with slightly darker blotches, and on the fins with obsolente 

 bands, composed of brownish spots. Length about 3 inches. 



Fin-rays:— D. 7, 17; P. 14; V. 1, 4; A. 12; C. 17. 



Cottus meridionalis, Girard, Smithsonian Contrib'n III, 

 1852, p. 47, pi. 1, fig. 9 & 10; Proc. Bost. Soc. Nat. Hist. 

 Ill, 1850, p. 189, and Proc. Amer. Assoc. Adv. Sell, 1850, 

 p. 410. 



It has been taken near CuuilxM'land. and at Rolirersville;^ 

 in Washington count}'. 



Acad. Coll. 



2— U. viscosa. 



Sonrewhat cylindrical, tapering posteriorily, head broader, 

 convex, a little flattened, nose convex and snout obtuse, 

 mouth wide, but less so than in the preceding species, and 

 its angles do not extend back farther than the front rim ot 



