( 41 ) 



behind head covered with small stiff prickles hooked backwards, readily 

 visible as small black specks when skin is dry. 



Length, 2 5-6. Color pale brown, irregularly spotted and mottled 

 with darker brown, somewhat as in Lota. Pectorals mottled ; belly white ; 

 spines spirally curved, forming half a spiral. The most peculiar characters 

 are the strong spines of the preopercle and the smaller ones below, the 

 carinated back and abruptly contracted body, forming the sub-terete caudal 

 peduncle The prickles of the skin seem to be more developed than in 

 the other described species. 



Genus Uranidea, DeK. 



U. hoyi, {Put.) 3Iss. Hoy's Bull-Head. For the privilege of includ- 

 ing this and the following species and descriptions 1 am indebted to the 

 kindness of Dr. P. R. Hoy of Racine, Wisconsin : 



Description of an adult female taken twelve miles off Racine in forty- 

 two fathoms of water, June 4, 1875, from a very accurate drawing by Mr. 

 A. L. Kumlien: D. Yl, 15; A. 11: V. 1, 3; P. 13; C. 12: length 

 2 1-6 in , head 3i ; depth 4i. Width of head equals its length. Eye 3i ; 

 body short, stout, broad and thick in front, very abruptly compressed 

 behind. Fins all low. P. with lower rays rapidly shortening, reaching 

 just to anal and beyond second dorsal. First dorsal low and small, f as 

 long as soft part and connected by membrane at base. Lower jaw unusu- 

 ally projecting. 



43. U. kuvilieni, {Hoi/) Mss. Kumlicn's Bull Head. Deep water in 

 Lake Michigan. 



D. VI, 17 ; A. 12.: P. 14; V. I, 3; head 3^ ; depth 6. Body slen- 

 der as in boleoides. Head large and long, its width a little over half its 

 length, depth a little less. 



Eye large, equal to snout and 34 in head, more than two times in inter- 

 orbital space. Pectoral base' cresentic, the fin as long as head ; the lower 

 rays rapidly shortening, reaching second or third dorsal ray and falling just 

 short of anal : fourth and fifth rays largest. No palatine teeth. Pre- 

 opercular spine not much hooked, directed upwards and backwards. Vent 

 midway between front of eye and base of caudal. Mouth wide, oblique ; 

 maxillary to middle of eye. Lower jaw projecting. First dorsal high, 5-6 

 second. Second spine longest, almost filamentous : membrane connecting 

 the dorsals. Caudal peduncle long and slender. Caudal narrow, f he d. 

 Lat. 1. disappears under middle of second dorsal. Dorsal and anal high, 

 their rays projecting. Length three inches. The above description is from 

 one of Dr. Hoy's types. 



Genus Pegedichthj/s., Raf. 



44. P. alvordi, Grd. Common in the Rock river and probably in 

 other streams. 



Genus Trujlopsrs, Grd. 



45. T. thompsoni, Grd. Deep-water Sculpin. Deep water in Lake 

 Michigan. 



