200 



AET. 2, — H. MATSÜMOTO 



Pig. B4. Amphiura digüula. x 15. a. From above, h. 

 From below, c. Ventral view of an oral angle, d. Side 

 view of three arm joints near disk. 



distal oral papillae, of 

 which one arises from 

 the oral plate (fig. c); 

 besides, there is an 

 additional papilla, 



which evidently cor- 

 responds to the scale 

 of the first oral 

 tentacle, just inside 

 and above the inner- 

 most one of the distal 

 papillae, thus almost 

 approaching the type 

 of the oral papillae of 

 Ainphioplus. The disk 

 is light bluish and the 

 arms whitish in colour 

 m alcohol. 



Ainx>Jilura hellis Lyman. 



AmpMura hellis : Lyman, Ball. Mus. Comp. Zool., VI, Pt. 2, 1879, p. 

 19 ; Lyman, Rep. Challenger, V, 1882, p. 127, PI. XVni, figs. 4-6, PI. XL, 

 figs. 16-18 ; Clark, BuU. U. S. Nat. Mus., LXXV, 1911, p. 140. 



Sagami Sea ; 345-775 fathoms (Lyman). Off Manazuru Zaki, 

 Sagami Sea ; 120-265 fathoms (Claek). Off Osé Zaki, Suruga 

 Gulf; 63-75 fathoms (Claek). Off Omai Zaki; 624 fathoms 

 (Clark). Off Kii ; 649 fathoms (Claek). 



Lat. 19° 10' S., long. 178° lO'E.; 210-610 fathoms (Lyman). 



