PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 389 



Albatross 

 station. 



i 5400 

 5495 

 5515 

 5526 

 5(301 



Locality. 



East coast of Luzon 



Between Leyte and Mindanao 



Off northern Mindanao 



Between Siquijor and Bohol Islands. 

 Gulf of Tomini, Celebes 



Depth in 

 fathoms. 



Bottom 

 tempera- 

 ture. 



565 

 976 



( 2 ) 



805 

 765 



• F. 

 52.' 3 

 "52.'3 



Number 

 of speci- 

 mens. 



i B. spongiceps was also dredged at this station. 



About 700. 



In the form and the texture of the head this species occupies a 

 position intermediate between B. entomelas and B. ftlcimentosus. 

 The body is compressed more strongly than in B. entomelas, but less 

 strongly than in B. fihmientosus, the width across the pectoral bases 

 being contained about 2£ times in the greatest depth of the body. 

 The length of the orbit is contained from 4.5 to 5.0 * times in the head ; 

 2.2 to 2.6 times in the length of the head behind the orbit; 1.2 to 1.35 

 times in the snout; and 1.2 times in the interorbital width. The 

 length of the snout and the least interorbital width are each contained 

 from 3.6 to 3.8 times in the head. The least suborbital width enters 

 2.2 to 2.3 times into the interorbital. The opercle ends posteriorly in 

 two weak spines, only the tips of which are exposed. The form of 

 the interopercle is like that of B. entomelas; its posterior flap is just 

 visible behind the preopercle. Length of upper jaw, 1.8. The teeth 

 are finer than usual in Bathygadus; the premaxillary band is 0.2 as 

 wide as the orbit; its inner shagreen-like portion is narrow and not 

 strongly differentiated from the outer portion ; the villiform teeth of 

 the mandible form a band nearly half as wide as the premaxillary 

 band (the dentition is quite different in B. entomelas) . The barbel 

 is absent. Pseudobranchial filaments are constantly present; the slit 

 behind the fourth gill-arch is shorter than the orbit. The scapular 

 foramen pierces the hypercoracoid about its own diameter above the 

 suture between that bone and the hypocoracoid (determined in three 

 specimens; both sides examined in one). 



Seven series of thin and deciduous scales occupy the space between 

 the origin of the second dorsal and the lateral line series. There are 

 two series on the mandible, but none on the face of the shoulder 

 girdle beneath the opercles. 



None of the fins are greatly produced or strengthened. The 

 ventral fin is inserted but little before the base of the pectoral or the 

 origin of the dorsal. 



Twenty pyloric caeca, two-thirds as long as the orbit, were counted 

 in one specimen. 



The coloration is darker than in B. entomelas. The fins are black- 

 ish; the buccal, branchial, and abdominal cavities are whollv lined 



1 In the largest specimen. 



