GOO PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. [1885. 



Scales small, cycloid, deciduous, about 142 lu the lateral line, about 

 25 rows from the vout upward and forward to the dorsal fin. 



Length of head (40™"') contained about 5| times in total length. Inter- 

 orbital area flatteued, its greatest width contained about 3| times in 

 the total length of the head. Postorbital portion of head (20™™) twice 

 as long as the eye, which is oval, its long diameter (10™™) contained 

 four times in the length of the head, and equal to length of snout. 



Snout and nostrils normal. 



The maxilla reaches somewhat beyond the posterior margin of orbit, 

 its length (21™™) twice in distance from snout to origin of first dorsal. 

 Length of mandible (26™™) is contained 2| times in length of the snout. 

 Barbel slender, long, its length (15™™) equal to 1^ times orbital diameter. 



Teeth in narrow villiform bauds in both jaws, none on vomer or pala- 

 tine bones. Gill-rakers very long and slender, numerous, 35 on first 

 arch (7 above angle), the largest (7™™) contained nearly six times in the 

 length of the head. 



Pseudobranchiae absent. 



First dorsal of 2 stout spines, the first minute, the second elongate, 

 and 8-9 branched rays. Its distance from snout (42™™) 5^ in total. The 

 , second or longest simple ray (77™™) is nearly eight times the length of 

 the snout, and reaches to or beyond the thirtieth ray of the second 

 dorsal. The second dorsal contains about 140 rays ; it is almost contin- 

 uous with the first, its anterior rays longest and not diminishing rapidly 

 in size toward the tail. 



The anal is inserted under the ninth ray of the second dorsal, its rays 

 much shorter than those in the dorsal, and situated about the same 

 distance apart. 



The pectorals are inserted under the anterior portion of the first dor- 

 sal, the first ray much i)roduced, extending more than half-way from 

 its insertion to the tip of the tail. Rays 13. 



The ventral origin is slightly behind the origin of the pectoral, un- 

 der the third branched ray of the dorsal, its first ray much enlarged, 

 extending more than half-way from its insertion to tip of caudal. Its 

 length (100™™) is contained 2^ times in the total length. Eays 8. 

 Branchiostegals 7. 



Color yellowish-gray, abdomen bluish. 



Nebbythites, new genus, BrotuUdce. 



Body brotuliform, much compressed, resembling Bytliites in general 

 appearance. The head is well covered with scales. Two weak spines 

 at angle of preoperculum and a stronger spine at angle of operculum. 

 The mouth large. The snout is moderate, rounded, projecting very 

 slightly beyond the mouth. The jaws are nearly equal in front, the 

 lower jaw slightly included. 



The teeth villiform, in narrow bands in both jaws and on the pala- 

 tines. Vomerine patch subcircular. Barbel none. 



The gill-openings are wide, the membranes deeply cleft and not 



