NO. 2140. JAPANESE MACROUROID FISHES— GILBERT AND HVBDS. 191 



The numerous pyloric caeca are profusely branched. Anus midway 

 between anal and ventrals. A small, round, naked fossa between 

 ventrals, its diameter one-fourth that of orbit, separated by a scaly 

 region from the oval naked area surrounding the anus. 



The stomach contained the remains of the eyes of a cephalopod. 



First dorsal spine sharp, the second spine 1.45 times as long as 

 orbit, not greatly strengthened, its anterior edge rounded, separated 

 by a well marked longitudinal groove from the rest of the spine; 

 base of first dorsal nearly as long as the snout, about half the inter- 

 dorsal space. Pectorals nearly half as long as head. Outer ventral 

 ray as long as orbit, with a short filament. 



Color light brown above, silvery on the sides, shading into blackish 

 on belly. Lining of buccal cavity white; that of branchial cavity 

 wdiite, with a blackish band just within the narrow whitish border 

 of the opercular membrane ; gular membrane blackish ; branchiostegal 

 membrane gray, punctate; peritoneum sih'ery. Dorsal fins, ventral, 

 and pectoral Iblack; anal whitish, punctate, and margined with 

 blackish. 



Only the type known. 



Table of mcasKrcDients in hundredths of length to anus. 



Albatross station 



Total length, mm 



Length to anus, mm 



Length, head 



Length, orbit 



Width, interorbital 



Width, suborbital 



Orbit to preoperclc 



Length, snout 



Postorbital length, head 



Length, maxillary 



Length, barbel 



Depth, body 



Width, body 



Anus to anal 2 



Anus to ventral 



Ventral to isthmus 



Height, second dorsal spine. 



Height, third dorsal ray 



Length, first dorsal base 



Interdorsal space 



Length, pectoral fin 



Length, first pectoral ray.... 

 Length, second pectoral ray. 

 Length, third pectoral ray. . . 

 Length, outer ventral ray . . . 

 Length, second ventral ray.. 



Soft rays, first dorsal 



Ventral rays 



Gill-raters, lower limb 



Type. Paratypes, AL hawaiiensis. 



4967 

 1 406 



77 



4134 

 340+ 

 69 

 85 

 31 

 26 

 10 

 37 

 23 

 35 

 40.5 

 13.5 

 74 

 44 

 7.5 

 17 

 29 



4134 

 330+ 



66 



84.5 



29 



28 

 9 



36 



24.5 



36 



40 



16 



42.5 



10 



17 



4134 

 285+ 

 53 



86.5 

 31 

 29 



9 

 39 

 24 

 36. 5 

 42 

 17 

 84 

 39 



9 



16.5 

 27 



1 A pseudocaudal developed. 



2 In the figure of the type of H. hawaiiensis the anus is represented as remote from the anal as in the type 

 of M. nipponensis. 



