MONOGIUPH OF JAPANESE OPHIUKOIDEA. 173 



Ampldophis cernua : Verrill, Transact. Connecticut Acad., X, 1899, 

 p. 315. 



Eastwards from Honshu ; 2,300 fathoms (Lyman). 



Amphioplus glaiicus (Lyman). 



Amphmra. glauca : Lyman, Bull. Mus. Comp. Zool,, VI, Pt. 2, 1879, 

 p. 29, PL XII, figs. 326-328; Lyman, Eep. Challenger, V, 1882, p. 139, 



PI. xvin, figs. 1-3. 



Ampldoplus glauca : Verkill, Transact. Connecticut Acad., X, 1899, p. 

 315. 



Sagami Sea ; 345 fathoms (Lyivian). Yeushu Sea ; 420 fathoms 

 (Lyman). 



Aitiphiopltis macrasins (Clark). 



AmpModia macraspis : Clark, Bull. U. S. Nat. Mus., LXXV, 1911, p. 

 157, fig. 66. 



Numerous spechnens ; Otaba, Sagami Sea ; 500 fathoms. 



Off Honshu; 501-749 fathoms (Claek). Suruga Gulf; 60- 

 270 fathoms (Claek). Sagami Sea; 622 fathoms (Claek). Off 

 Korea; 184 fathoms (Claek). Gulf of Tartary ; 318 fathoms 

 (Claek). 



Off Washington ; 115 fathoms (Claek). 



In the larger specimens, the radial shields are rather narrower 

 and the ventral arm plates comparatively wider. As far as I 

 have observed, there is present in all cases a single tentacle 

 scale to each pore. The oral papilla) are very variable. There 

 are present usually four genuine oral papillœ on either side, 

 besides an additional one, which occurs just between the infradental 

 and the distal papilla\ The additional papilla is smaller and 



