No. IV. ICHTHYOLOGY. 219 



be much scarcer than the preceding. Externally the ventral 

 fin appears to be composed of three rays ; but on dissection 

 four long rays and one rudimentary one are found. Obtained 

 at Franklin Pierce Bay, August 11, 1875. 



4. CYCLOPTERUS SPINOSUS (Mull.) Previously known from 

 Iceland, Spitsbergen, and Greenland. Two specimens from 

 Cape Napoleon, and four from Franklin Pierce Bay are all 

 young, and interesting as showing the irregular manner in 

 which the conical spines are developed. The largest of these 

 young specimens is not quite two inches long ; and the 

 tubercles are much less numerous than in an adult specimen ; 

 it is rough, and covered with minute spines. In a specimen 

 fifteen lines long, only traces of the tubercles are visible on 

 the skin. A specimen twelve lines long is quite naked, whilst 

 another of the same size has the tubercles as much developed 

 as the largest, or even more so. The spines of the first dorsal 

 fin are sometimes quite distinct, sometimes enveloped in 

 loose skin. 



CYCLOPTERUS SPINOSTJS. 



5. LIPARIS FABRICII (Kroyer). Previously known from 

 Spitsbergen, Greenland, Port Leopold. Is represented in the 

 present collection by a specimen from Discovery Bay, and 

 others from 'Franklin Pierce Bay. 



6. GYMNELIS VIRIDIS (Fabr.) One specimen obtained in 

 lat. 81 52' N. ; is only five inches long, and belongs to a 

 highly-coloured variety, being brown with numerous white 

 spots, and having four black ocelli on the dorsal fin. Another 

 specimen was collected in Franklin Pierce Bay. 



7. GTADUS FABRICII (Rich.) Widely distributed in the 



