REPORT ON THE DEEP-SEA FISHES. 59 



Halieutaea, C. V. 



The well-known species from China and Japan, Halieutaea stellata, is the only 

 representative of this genus that was hitherto known. That a second species should be 

 discovered in the Atlantic, can hardly excite any surprise in those who have paid 

 attention to the distribution of the marine fishes of the Japanese Fauna. But we should 

 not have expected to find that, while the Indo-Pacific species is evidently a littoral fish, 

 or at least one which is readily obtained by the ordinary means of fishermen, its newly 

 discovered Atlantic representative is an inhabitant of a depth of more than 200 fathoms. 

 No special modification indicative of bathybial habits has been pointed out in the Atlantic 

 species. 



Halieutsea senticosa. 



Halieutsea senticosa, Goode, Proc. U.S. Nat. Mus., voL iii., 1881, p. 467. 

 D. 1 I 6. A. 4. C. 8. V. 5. P. 13-15. 



The width of the mouth is equal to the distance between the centres of the eyes. 

 Disk with a marginal series of closely set spines ; outside of the marginal spines a row of 

 five depressed, knife-like spines, each with a crown of three spinelets ; these two rows 

 coalesce on the front edge of the disk. 



Five specimens, 2 J to 5^ inches long, were obtained by the U.S. Fish Commission on 

 the south coast of New England, at depths varying from 225 to 238 fathoms. 



Dibranchics, Ptrs. 

 Difi"ers from Halieutsea by having only two gills. 



Dihranclius atlanticus. 



Dibranchus a<?an<«cas, Peters, Monatsber. d. k. preuss. Akad. d. Wiss., Berlin, 1875, p. 738, c. Tab. 

 B. 6. D. 6-7. A. 4. C. 9. P. 10-14. V. 1. Vert. ^V 



The larger tubercles wdth from seven to ten ridges. Brown above, whitish 

 below. 



Four specimens, 3^ inches long, were obtained off the west coast of Africa in 

 lat. 10° 12' N., long 17° 25' W., at a depth of 3600 fathoms. 



