322 



s. goto; 



In tliis species, however, the snperomarglnals are longer tliau wide, where- 

 as all the young japonicus liave them wider than long. Gramilaris lacks 

 pedicellarijTß altogether, the abactinal iabula are flat-topped with large 

 marginal gi-annles, and the actinal intermediate granules are roimdish and 

 not crowded. The adambulacral armatm-e is coarser and the spinelets and 

 gi-anules fewer. In young japonicus the papuhB are restricted to broadly 

 ovatv^ areas on the radii, the tabula are lower with fewer gi-anules, and no 

 abactinal pedicellariœ or only few. The marginal plates are sometimes 

 relatively tliicker than in the adult. 



" Type. — In the British Museum. 



" Tjjpc-locality. — Challenger station 232, south of Yokohama, Japan, 

 345 fathoms, green mud. 



" Distrihution. — Japan (INIisaki, and south of Yokohama) to southern 

 Bering Sea, thence south along the American coast to Oregon. 



" Specimens examined. — Seventy-tln'ee, from the following localities : 



" Specimens of Ceramaster japonicus examined. 



station 



3227 

 3330 

 3331 

 3346 



3488 



3489 

 3502 



3608 



4768 



4774 



4775 



Lociility 



Depth 



Fathoms 



Bering Sea, north of Unalaska. , 



do 



do 



Off Tillamook Bay, Oregon 



West of Pribilof Islands, Bering 

 Sea 



do 



Bering Sea, south of St. George 

 Island 



Bering Sea between St. George 

 and Unalaska 



Bowers Bank, Bering Sea, 54' 

 12' N.; 179' 07' E 



Bowers Bank, Bering Sea, 54' 

 33' N.; nSMS'E..." 



do 



^lisald, Japan 



225 



351 

 350 



786 



106 

 184 



368 



276 



771 



557 

 584 

 320 



Natnre of bottom 



Green mnd 



Black sand, mnd. 



Mud 



Green mnd 



Green mnd, gray sand 

 do 



Green mnd, dixrk sand 

 Gray sand 



Green mnd. 



Green mnd, black 

 si)eck, foraminifenx . 



do. 



No. 



Collection 



4 

 1 



5 



1 



2 



26 



24 



1 



1 

 3 

 1 



U.S. Nat. Mus. 

 do. 

 do. 

 do. 



do. 

 do. 



do. 

 do. 



Albatross, 1900. 



do. 

 do. 



Stanford. 



