220 ART. 2. — H. MATSUMOTO : 



OphiotJirix lioreaiia Duncan. 



OpMothrix koreana : Duncan, Jonrn. Linn. Soc. London, XIV, 1879, 

 p. 473, PI. XI, figs. 28-32 ; Lyman, Eep. Challenger, V, 1882, p. 22G ; 

 Marktanner-Tueneeetschee, Ann. K. K. Naturh. Hofnars. Wien, II, 1887, p. 

 308 ; Clark, Bull. U. S. Nat. Mus., LXXV, 1911, p. 257, figs. 127 & 128. 



Numerous specimens ; off Nii-jima, Sagami Sea. Numerous 

 specimens ; off Jôga-shima, Sagami Sea. Numerous specimens ; 

 Uraga Channel. 



Hakodate Bay; 11.5-15.5 fathoms (Claek). Gulf of Tokyo; 

 169 fathoms (Claek). Uraga Channel, 58-302 fathoms (Claek). 

 Sagami Sea; 41-153 fathoms (Claek). Suruga Gulf; 13-150 

 fathoms (Claek). Sea of Japan; 44-114 fathoms (Claek). Korea 

 Strait; 23-59 fathoms (Duncan, Claek). Eastern Sea; 53-181 

 fathoms (Claek). Kagoshima Gulf; 58 fathoms (Claek). Off 

 Satsuma; 39-51 fathoms (Claek). 



Molucca (Maektannee-Tueneeetschee). 



The disk covering is very variable, as noted by Claek. The 

 colour is whitish or partly light pink in alcohol. In some speci- 

 mens, the arms are annulated with light pink ; in others, some 

 of the dorsal arm plates, besides being annulated, bear each a red 

 spot ; in still others, the annulation of the arms is very faint, 

 although the red spots are present ; in a fourth lot, the i-ed spots 

 are present oti all the dorsal arm plates, but the annulations are 

 entirely absent. These red spots may possibly l)e pliosphorescent 

 organs. 



Oiyliiothvix 7naren%ellerl Kœhlek. 



OpJiiothrix slelUgera : Marktanner-Turneretscher, Ann. K. K. Naturli. 

 Hofmus., Wien, II, 1887, p. 310. (Non Lyman, 1874.) 



