PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 391 



bone, along its posterior half, even along the posterior flap, is almost 

 straight. The branchial aperture extends forward to below the 

 middle of the eye, where the gill-membranes form a narrow fold 

 across the isthmus. 



The scales are in two series along the mandible. 



Thirty-five pyloric caeca were counted in one specimen; they are 

 very short, being only two-fifths as long as the orbit. 



The parietal peritoneum is black. 



The three most anterior gill-rakers are unusually small, and were 

 not included in the count in the type-description : there are G-f-18 

 or 19 in the type-specimen, instead of 5-J-16, as given by Radcliffe. 



Table of measurement* in hundredths of length to anus. 



Type. 



Albatross station 5423 5424 



Total length in mm 440 '323 



Length to anus in mm 156 98 



Length of head .- 58 58 



Length of orbit 15.5 16.5 



Width of inrerorbital -t 12.5 14 



Width of suborbital 6 7 



Orbit to preopercle 27 28 



Length of snout 16 16. 5 



Length of upper jaw 32. 5 32. 5 



Depthofbodv 38 41 



Widthofbody 25 26 



Anus to anal i 9 7 



Anus to ventral 39. 5 39. 5 



Ventral to end of pectoral arch ' 27.5 28 



Height of second dorsal spine 



Length of first dorsal base 17 



Length of first pectoral ray | 7 



Length of second pectoral ray 



Length of third pectoral ray 



Length of outer ventral ray 



Length of gill-rakers 



Scales: 



Above lateral line 



Below lateral line 



Soft rays, first dorsal 



Ventral rays (both sides) 



Pectoral rays 



Gill-rakers: 



Left | 5+19 6+18 



Right ! 5+18 5+18 



16 

 9 



54.5 

 40 

 51 



9-9 



16 



(unknown) 

 300 

 93 

 58 

 17 

 13 



7 

 28 

 16 

 ' 33 

 38 

 21 



8 

 39.5 

 28.5 

 19 

 17 



5510 



' 172 



54 



63 



18 



17 



8 



29 



18 



38 



42 



22 



9 



37 



27 



9-9 

 15 



9 

 10-9 



5+18 



5+18 . 

 5+19 I. 



5513 

 108+ 

 35 

 62 

 17.5 

 16.5 

 8 



9 

 10-10 



1 A small pseudocaudal developed. - The smallest specimen procured. 



(sulcatus, furrowed. ) 



Genus GADOMUS Regan. 



This group, as recently defined by us, 1 contains about 10 species 

 which have been greatly confused. The seven described species are 

 probably all valid, and they appear to follow the species of Bathy- 

 gaclus and other Macrouroid genera in their localized distribution. 

 The western Atlantic species, G. long if /is, has been recorded from the 

 eastern Atlantic by Vaillant 2 and Collett, 3 but the descriptions 



1 Gilbert and Hubbs, Proc. U. S. Nat. Mus., vol. 51, 1916, pp. 139, 148. 



-Vaillant, Exp. Sci. Travailleur et Talisman, Poiss., 1888, p. 218, pi. 23, fig. 1. 



8 Collett, Poissons de L'Hirondelle, 1896, p. 91. 



