408 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



fills is open to doubt, owing to their failure to describe in detail 

 those characters which we find of highest value in the discrimination 

 of the species. 



The color is dark brown, becoming blackish on the belly and about 

 the nostrils; the jaws, the branchiostegal and gular membranes, as 

 well as the entire linings of the buccal, branchial, and peritoneal 

 cavities, are black. The fins are mostly blackish, but the second 

 dorsal is lighter anteriorly, especially near its base; the anal is 

 dusky. 



Table of measurements in hundredths of length to anus. 



Philippine Islands. 



Japan. 



(') 



A Ibalross station 



Total length in mm 



Length to anus in mm 



Length of head 



Length of orbit 



Width of interorbital 



Width of suborbital 



Orbit to preopercle 



Length of snout 



Length of upper jaw 



Width of band of teeth in upper jaw. 



Length of barbel 



Depth of body, about 



Width of body, about 



Anus to ventral 



Ventral to end of pectoral girdle 



Height of second dorsal spine 



Height of third dorsal ray 



Length of base of first dorsal 



Length of first pectoral ray 



Length of second pectoral'ray 



Length of third pectoral ray 



Length of outer ventral ray 



Length of inner ventral ray 



Length of gill-rakers '. 



Scales above lateral line 



Soft rays, first dorsal 



Ventral rays (both sides) 



Pectoral rays (left side) 



Outer gill-rakers 2 (left side) 



5582 

 172+ 

 61 

 61 

 16 

 15 



6 

 28 

 17 

 38 



1.8 

 36 

 44 

 26 

 32 

 28 

 128 



16 

 5.5 

 150 



5607 

 224+ 

 61 

 63 



15.5 

 14.5 

 6.5 

 29 

 18 

 37 



1.7 

 40.5 

 47 

 26 

 32 



120+ 



122+ 

 31 

 9 

 6 

 8 

 8 

 17 

 6+26 



10.5 



6 



9 



8 



IS 



6+26 



5467 

 252+ 

 72 

 62 

 14 

 14 

 6.5 

 29 

 16.5 

 38 



1.8 

 36 

 47 



4973 

 106+ 

 35 

 62 

 16 

 14 

 8 

 28 

 19 



32 



127 



24 



19 



9 



107 



27 

 130+ 



9.5 



6 



9 



19 



17 

 6+27 



2385 



250 



68 



61 



17 



12.5 

 6 

 27 

 17 

 37 



1.3 

 24 

 44 



22.5 

 35 

 31 

 130 

 27 

 19 

 9 

 124 

 28 



139+ 



37 



9 



5 



9 



8 



15-15 



7+30 



1 One of the types of Bathygadus longifilis. 2 Including anterior rudiments. 



(muUifilis, in reference to the numerous fin filaments.) 

 Subfamily Macrouroidinae. 



Genus MACROUROIDES Smith and Radcliffe. 



10. MACROUROIDES INFLATICEPS Smith and Radcliffe. 



Macrouroides inflaticeps Radcliffe, Proc. U. S. Nat. Mus., vol. 43, 1912, 

 p. 139, pi. 31, fig. 2. 



Type-specimen collected in 408 fathoms at Albatross station 5450, 

 in Lagonoy Gulf, eastern Luzon ; bottom temperature 42.3° F. 



The relationships of this remarkably aberrant fish are discussed 1 

 in our paper on Japanese Macrouroids, in connection with the 

 description of the related Squalogadus modiftcatus. 



(h)fatlceps, in reference to the immense head.) 



1 Gilbert and Hubbs, Proc. U. S. Nat. Mus., vol. 51, 1916, pp. 138, 140, 156. 



