PHILIPPINE MACROUROID FISHES GILBERT AND HUBBS. 421 



18. CORYPHAENOIDES ORTHOGRAMMUS (Smith and Radcliffe). 



Macrourus orthogrammus Smith and Radcliffe, Proc. U. S. Nat. Mus., 

 vol. 43, 1912, p. 123, pi. 27, fig. 3. 



This species is a very distinct one, having no close allies. It differs 

 generically from Lio7iurus parvipes and Mataeocephalus, with which 

 its describers compared it, in the number of branchiostegal rays, of 

 which there are 6 instead of 7. 



G. orthogrammus is known only from the type-specimen dredged 

 from 1,262 fathoms, by the Albatross, at station 5636 near Gomomo 

 Island, in Pitt Passage, Dutch East Indies. 



The width over the pectoral bases is but half the greatest depth of 

 the body. The length of the orbitris contained 4.2 times in the head; 

 the width of the wide, fiat interorbital space, 3.4 times. The promi- 

 nent supranarial ridges are arched inward. The sides of the head 

 are parallel, not diverging posteriorly; the distance between the 

 lateral terminal tubercles is equal to the interorbital width. Length 

 of the upper jaw, 3.3. The denticulate margin of the preopercle is 

 produced backward in a wide curve, which nearly covers the posterior 

 lobe of the interopercle. The preopercular ridge is sharply produced 

 backward. 



The scales are in five series between the origin of the second dorsal 

 and the lateral line series. 



The ventral fin is inserted directly below the origin of the first 

 dorsal and the base of the pectoral, at a distance from the center of 

 the anus equal to the interorbital width, and at a distance from the 

 isthmus equal to the length of the snout. 



The lining of the buccal cavity is dusky; of the branchial cavity, 

 bluish black ; of the abdominal cavity, brownish black. 



Measurements in hundredths of Jength to anus (48 mm.)- — Length 

 of head, 74 ; length of orbit, 17 ; width of interorbital, 22 ; width of 

 suborbital, 10; orbit to preopercle, 33; length of snout, 25; length 

 of upper jaw, 24; length of barbel, 2.5; depth of body, 49; width of 

 body, 26 ; length from anus to ventral, 22 ; from ventral to isthmus, 

 26 ; length of first dorsal base. 19 ; length of outer ventral ray, 50. 



(orthogrammus, perhaps in reference to the strongty marked line 

 formed by the suborbital ridge.) 



19. CORYPHAENOIDES CAMURUS (Smith and Radcliffe). 



Macrourus camurus Smith and Radcliffe, Proc. U. S. Nat. Mus., vol. 43, 1912, 

 p. 122, pi. 27, fig. 2. 



This remarkably peculiar species is known only from the small 

 type, dredged at Albatross station 5428, off eastern Palawan, at a 

 depth of 1,105 fathoms and at a bottom temperature of 49.7° F. 



