636 NEW YORK STATE MUSEUM 



Uranidea richardsoni JORDAN & GILBERT, Bull. 16, U. S. Nat. Mus. 696, 1883; 



BEAN, Fishes Penna. 136, pi. 35, fig. 74, 1893. 

 Cottus ictalaps bairdi' MEEK, Ann. N. Y. Ac. Sci. IV, 315, 1888. 

 Cottus ictalops MEEK, op. cit. IV, 314, 1888; JORDAN & EVERMANN, Bull. 47, 



U. S. Nat. Mus. 1950, 1898. 



Body rather robust, gradually tapering to the ^tail, the depth 

 varying from one fourth to one sixth of the length; the length 

 of the head is contained about three and one third times in the 

 standard length of the body; long diameter of eye almost equal 

 to length of snout; preopercular spine short and sharp, turned 

 upward and backward, with two smaller spines below it; skin 

 usually smooth, sometimes with minute prickles behind axil of 

 pectoral; spinous dorsal begins slightly behind end of head, 

 separatee! from second dorsal by a deep notch; second dorsal 

 about two and one third times longer than first, and one third 

 longer than anal base which slightly exceeds greatest length of 

 head; pectoral, ventral, and caudal fins well developed. 



D. VI-VIII, 16; A. 12-13; V. I, 4. Lateral line conspicuous, 

 sometimes wanting on caudal peduncle. 



Color olivaceous, much speckled; sides usually with several 

 distinct and rather broad cross bands; fins barred and mottled. 



Bullhead, blob and muffle-jaws are names applied to the 

 miller's thumb, which has been associated with Richardson's 

 name. 



The typical Richardson's miller's thumb is found in the upper 

 Great lakes. In general it inhabits the " middle and northern 

 states, abounding in all clear, rocky brooks and lakes east of 

 the Dakotas and Kansas to New York and Virginia, extending 

 southward along the Alleghanies to North Carolina and northern 

 Alabama, especially abundant in limestone springs and entering 

 caves." 



The U. S. Fish Commission had specimens from Grenadier 

 island and Stony island, in the Lake Ontario region, collected 

 June 28 and July 3; also from the St Lawrence river, 3 miles 

 below Ogdensburg N. Y., July 17, taken by Dr Evermann and 

 Mr Bean in 1894. Meek records the species from the southern 



