20 THE VOYAGE OF H.M.S. CHALLENGER. 



Tiie superficial bones of the skull with wide muciferous cavities. Cleft of the mouth 

 unusually wide. Bauds of viLliform teeth in the jaws, on the vomer and palatine bones. 

 Scales very small, cycloid ; upper side of the head scaleless ; [scales on the lateral parts 

 of the head hidden under the skin].' Branchiostegals seven. 



Otheiwise i-escmbling Sehastes. 



Bathysehastes albescens. 



Ballitjsehastes albescens, Steindachner u. Doderlein, Denksclir. d. k. Akad. d. "Wiss. 'Wiei), 



1884, xlix. p. 207. 



D. i§. A. f. p. 21. 



The posterior end of the maxillary is vertically a little in front of the hind-margiu 

 of the eye, which is contained five and two-fifths in the length of the head. The 

 pectorals reach to the vent. Yellowish-white. 



One specimen, 1 2 inches long, was obtained in the Sea of Japan, but nothing definite 

 is known about the depth which it inhabits. 



Lioscorpius, Gthr. 

 Lioscorpius longiceps. 



Lioscorpius longicepit, Giinth., Report on the Shore Fishes, Zool. Chall. Exp., part vi. p. 40, 

 pi. xvii. fig. C. 



Hahitat.—OSt\iQ Ki Islands, Station 192 ; depth, 140 fathoms. 



Family B e r y c i d j&. 

 Hoplostc'thus, C. V. 



Body deep, compressed, covered with scales of moderate size and more or less distinct 

 ctenoid structure, rather irregularl}- arranged, those of the lateral line being tlie largest. 

 Head very large ; the superficial bones being deej^ly sculptured to receive wide muci- 

 ferous cavities which are covered by thin skin only. Mouth very wide, oblique ; the jaws 

 and palatine bones armed with villiform teeth, the vomer being toothless. Eye ver)- 

 large. Eight branchiostegals ; gill-openings very wide, gill-lamin£B veiy short. Prae- 

 operculum armed with a flat spine. Aljdomen protected by dermal scutes which form a 

 serrated edge. One dorsal fin, the anterior rays of which arc spinous ; ventrals with six 

 soft rays ; pectoral symmetrical ; caudal deeply forked. Air-bladder simple ;• pyloric 

 appendages numerous. 



One species only is known. 



' Useless for generic distinction. 



