242 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxvii. 



head with a slight ridge running back from each eye, leaving vertex 

 slight]}^ concave. A flat fringed tentacle on superorbital rim above 

 posterior sixth of orbit. 



Lateralline armed with plates which are rough on their posterior 

 edge and are but slightly larger than the scales on back. The anterior 

 half of the lateral line bends upward and reaches to just above upper 

 angle of gill opening. Back above lateral line and posterior part of 

 body below lateral line evenly covered with ctenoid scales; these in 32 

 oblique series; 6 scales between bend of lateral line and back, counting 

 the series running upward and forward. 



Pectoral with 15 simple raj^s, the seventh from the top the longest; 

 reaching to above the base of the fourth or tifth anal ray. The pos- 

 terior outline of the fin is pointed. Dorsals close together; scarcely 

 attached; first dorsal spine longest, or at least as long as the second 

 and third; slightly shorter than the longest soft raj's; 2| in head. 

 Tips of last dorsal and anal rays ending on the same vertical. ])ut not 

 reaching to base of caudal rays. Caudal somewhat rounded. 



Color, light brown on back, white below; a dark band l)etween eyes 

 with sometimes traces of its continuation below eye across cheek; a 

 cross band under front of spinous dorsal; one under antei-ior third of 

 soft dorsal, one under last dorsal raj's, and one across caudal peduncle; 

 spinous dorsal black; other fins colorless, except a dark spot at base of 

 middle pectoral rays and a smaller similar one at l^ase of upper ravs; 

 belly and under parts white. 



Four specimens collected by the U. S. Fish Commission steamer 

 Alhatross in 42 to 52 fathoms, in Sagami Bay, stations 3754, 3762, 3703, 

 off Suno Point, Totomi Bay (station 3729, off Omai Point), and from 

 Owari Bay. 



The type is from Sagami Bay; it is 32 mm. in length, and is num- 

 bered 50914, U.S.N.M. A cotype is No. 7702, Ichthyological Col- 

 lection, Leland Stanford Junior University. 



5. RICUZENIUS Jordan and Starks. 



Ricuzenius Jordan and Starks, new genus {jnnetorum) . 



Head and body slightly compressed; covered with rough scales of 

 moderate size; enlarged plates along lateral line. Eves large; inter- 

 orbital space convex. Preopercle with 4 moderate spines; the upper 

 one not enlarged nor with antler-like processes; short and simply 

 hooked upward. Villiform teeth on jaws, vomer, and palatines. Gill 

 membrane broadly united; free from the isthmus. No slit behind last 

 gill. Dorsals close together, but separate. Ventrals with a concealed 

 spine and 2 soft rays each. 



(Named for the province of Rikuzen, front-land, on the shores of 

 which region it was taken.) 



