398 



BULLETIN 100, UNITED STATES NATIONAL MUSEUM. 



Only two specimens were not measured, owing to their poor state 

 of preservation. They are about 52 and 76 mm. long, respectively, 

 to the anus, and agree with the other specimens in the diagnostic 

 characters. 



{denticulatus ^ in reference to the fine teeth.) 



7. GADOMUS MAGNIFILIS, new species. 



Type-specimen,— -Cat. No. 78208, U.S.N.M.; 337 mm. long to 

 the end of a very small- pseudocaudal, 103 mm. long to the anus ; 

 dredged at Albatross station 5515, off northern Mindanao, in " about 

 700 " fathoms, near the type locality of G. denticidatus, but in deeper 

 water. 



Two smaller paratypes were also obtained : 



A Ibatross 

 station. 



Locality. 



Depth in 

 fathoms. 



Bottom 

 temper- 

 ature. 



5201 

 .5423 



Sogod Bay, southern Leyte Island. 

 Near Cagayan Island, Jolo Sea 



554 



508 



°F. 



52. S 

 49.8 



The form of the body is similar to that of related species; the 

 greatest depth is equal to the greatest length of the head to the 

 preopercular margin; the greatest width across the pectoral bases 

 is about half the depth, and is contained 2.35 times in the head. 

 The head is somewhat more cavernous and angular in outline than 

 in G. denticulatus, as correlated with its living at greater depths: 

 the outline of the snout at the tip of the premaxillary forms little 

 more than a right angle. The width of the head is almost equal to 

 the length of the snout plus that of the orbit. The orbit, as deep as 

 long, is contained 4.65 (4.4) x times in the length of the head, 1.3 

 (1.2) 1 times in the length of the snout. Least width of interorbital, 

 1.37 (1.5) 1 in orbit. The least width of the bony suborbital region 

 is nearly two-thirds that of the interorbital. The maxillary reaches 

 a little beyond the vertical from the posterior orbital margin ; length 

 of the upper jaw, 1.8 in head. The teeth, though minute, are of 

 sufficient size and spacing to be readily distinguished from one an- 

 other by the unaided eye. The bands of teeth in the jaws are rather 

 narrow, and are somewhat rounded in cross-section ; the premaxillary 

 band is widened posteriorly, but lacks the flat process, extending in- 

 ward, which is found in G. denticulatus; the greatest width of the 

 premaxillary band is contained only 2.0 (to 2.4) * times in the least 

 bony suborbital width. The teeth in the bands are aligned in length- 

 wise series. The barbel is long and slender, being over half as long 

 as the head in the type-specimen ; but its length may be expected to 



1 In the paratype from station 5201 (70 mm. long to anus). 



