JIONOGRAPH or JAPANESE OPHIÜßOIDEA. 



329 



132, PL YII, figs. 182 & 183; Lyman, Kep. Challenger, V, 1882, p. 176, 

 PI. XXIV, figs. 13-15 ; Clark, Bull. U. S. Nat. Mus., LXXV, 1911, p. 133. 



OpMochiton carinatus : Lütken & Mortensen, Meni. Mus. Comp. 

 Zool., XXm, 1899, p. 164, PI. XIV, figs. 1-3. 



Numerous specimens ; oft' Misaki, Sagami 8ea. 



Sagami Sea; 110-405 fathoms (Clark). Uraga Channel ; 70- 

 197 fathoms (Clark). Suruga Gulf; 94-270 fathoms (Clark). 

 Eastern Sea ; 406 fathoms (Clark). 



Fig. 9L OpMochiton fadigalus. a. From above. x2. h. From below. 

 X 2. c. From above, x 7. d. Yentral view of an oral angle, showing the 

 presence of an accessory oral shield, x 2. e. Side view of three arm joints 

 near tlisk. x2. f. Side view of three arm joints near disk of a medinm- 

 sized specimen, x 3. q. Side view of three arm joints near disk, x 7. 

 c. and g. young. 



