8 PROCEEDIXaS OF THE NATTOXAL MUSEUM. vol. xxvi. 



back in front the scales are exceedingly small. Head ver}'^ large and 

 deep, the ridges of the bones elevated and forming large mucous cavi- 

 ties between covered with thin transparent membranes; upper protile 

 roundly convex from the snout; eye very large, in the upper half of 

 the head, its posterior margin nearer the gill-opening than the tip of 

 the snout, 3 in the head, 2 in the maxillary, and a little more than the 

 width of the interorbital space; mouth oblique, the maxillar}- extend- 

 ing till a short distance from the posterior margin of the eye; nostrils 

 large and directly in front of the upper part of the eye, like most of 

 the exposed ridges of the head roughened; the lower jaw projecting 

 and with a small protruding process at the symphysis; above the 

 operculum, at the origin of the lateral line a strong spine, and another 

 at the end of the preoperculum below, the latter very broad; 3 bony 

 ridges cross over from the eye to the preoperculum; teeth small, tine, 

 and in broad bands in the jaws, forming a series slightly enlarged 

 inside; no vomerine teeth; interorbital space high and convexl}' 

 rounded; opercles with many striie; gill-openings very large; gill- 

 rakers O-j-lO, very long and slender, much larger than the gill-tilaments; 

 branchiostegals 8; gill-membrane free from the isthnms; dorsal a short 

 distance behind the gill-opening; the spinous tin graduated to the last 

 spine, which is as long as the qjg, but not as high as the anterior soft 

 dorsal rays, which are the highest part of that tin, and rounded; anal 

 spines with the tirst 2 ver}^ short, and the third very long, though 

 not equal to the longest anal rays; pectoral very long, shorter than the 

 head, and reaching the origin of the soft anal; ventrals short, about 

 If in the head, and not reaching the anus; caudal deeply emarginate 

 and with the lobes somewhat pointed; rudimentary caudal ravs devel 

 oped as 6 graduated spines above and below. The lateral line a series 

 of large pores obliquely from the upper part of the head to the base 

 of the caudal. Space from between the ventrals to the anus armed 

 with a single series of backwardly directed serrje. Caudal peduncle 

 compressed and al^out equal to the eye. 



Color in alcohol brown, the tins pale, the inside of the mouth and 

 the peritoneum black. Total length, 9f inches. Here described from 

 specimens dredged in Sagami Bay b}- the U. S. Fish Commission 

 steamer Albatross. 



In young examples the ventrals reach tlie anus, the pectorals are 

 longer, the preopercular spine is longer, and in the smallest examples, 

 from Kishyu, the sides are scaly like the rest of the body. All the 

 specimens have the single bony l^ridge across the preoperculum from 

 one margin to the other at about one-fourth its height. 



Coasts of Japan in deep water; our specimens dredged in deep water 

 by the U. S. Fish Commission steamer AlhatroKS in Sagami Bay, at 

 stations 2339 and 2348 and at stations 3721 and 3738 in Suruga Bay. 

 We also have a small specimen from Kishyu (Kii). 



