36 THE DISCOBOLI. 



the present time, the species has been found only in the North Atlantic and 

 the Arctic Oceans. In tiie Museum of Comparative Zoology there is a small 

 individual taken in Massachusetts Bay. It is less than half an inch long, 

 but has the flanks occujjied by numerous tubercles, and the dorsals distinct. 

 The rays of the anterior dorsal are rather long. At each side of the anterior 

 portion of the disk there is a white spot, and from the operculum a ^vhite 

 stripe extends back above the pectoral to the middle of the flank ; otherwise 

 the colors resemble those of the specimen figured. Possibly, as suggested 

 above, C. orbis from the North Pacific belongs with this species ; however, as 

 our specimens plainly show the features that induced the original separation, 

 it seems preferable to make no change until possessed of material sufficient 

 for a more definite comparison. 



The color is olivaceous to brownish, very likely reddish in life, clouded 

 with darker. 



Eumicrotremus orbis. 



Ci/c!opterus orhis Gthr., ]801, Cat., III. 158. 



EumkrotremuK orhU J. & (i , 1880, Pi-. U. S. Mu3., III. 4.')1, — 1881, Vi: U. S. Mus., IV. G2. 

 Cyclopierus (Eumicrolrenms) .■<phio^us J. & G., 1SS2, Bull., 10 U. S. Mus., 746. 



Eumicrotremus spinosus Bean, 1881, Pr. U. S. Mus., IV'. 247, 271; Coll., 1880, Xorske Nord.-Exp., 

 Fiske, 40 (part). 



B. 6; D. 7/9; A. 10; C. 10. 



Body compressed, thick, short, and high ; head short, higher than wide, 

 flattened, supra-orbital angles prominent. In the specimen described, badly 

 shrunken by drying, the height of the body is nearly half of the entire 

 length, while the height of the head is contained in the distance from the 

 snout to the base of the caudal nearly twice, and the length of the head in 

 the same distance nearly two and a half times. Eye large, about three and 

 a half times in the length of the head. Teeth numerous, small, subconical, 

 in pavement, four or five series. Anterior dorsal much as in a specimen of 

 C. lumpus of three inches in length, the sides of the fin covered with spines 

 of moderate size, the spinous rays seven in number. The upper outline of 

 this fin is much like that of the Lump, in being arched backward, or cres- 

 centic. The ten ravs of the second dorsal are very di.stiuct; the membranes 

 are not so tuberculate as those of the first. Entire body and head covered 

 with spiny conical tubercles, the largest in a group of seven or eight on the 

 flank l)ehind the pectorals, another on the forehead, and thoi-ie on the supra- 

 ocular ridge. A single large one stands at each side of the space between 



