224 ART. 2. — H. MATSUMOTO : 



Ophiothrix stahilis Kœhlee. 



OpJdoihrîx stahilis: Kœhler, Mem. Soc. Zool. Fr., XYII, 1904, p. 84, 

 figs. 46-i9. 



OpUothrix cîUaris : Claek, Bull. U. S. Nat. Mus., LXXV, 1911, p. 257. 

 (Non Müller & Troschel, 1842.) 



One specimen ; Gorgonian Cave, Misaki Marine Biological 

 Station. 



Japan (Kœhlee). Kobe ; 8 fathoms (Clark). 



The specimen at hand is perfectly similar to Kœhlee' s type, 

 except in colour. The disk is purplish black, except just inside the 

 dorsal side of the arm base, where there is a white patch, which 

 is continued on to the longitudinal white streak on the dorsal 

 side of the arm. Arm spines nearly white, with purplish black 

 marginal denticles. 



Opliiotlividc nereidina (Lamarck). 



Opliiura nereidina : Lamarck, Hist. Nat. Anim. sans Vert., II, 1816, 

 p. 544. 



Ophiothrix nereidina : Müller & Troschel, Sys. Ast., 1842, p. 115 ; 

 Lyman, Eep. Challenger, V, 1882, p. 221 ; Studer, Abh. K. Preuss. Akad. 

 Wiss. Berlin, 1882, p. 26 ; Marktanner-Turneretscher, Ann. K. K. Naturh. 

 Hofraus. Wien, II, 1887, p. 309 ; Döderlein, Zool. Jahrb. Sys., Ill, 1888, 

 p. 832, PI. XXXII, figs. 5a-5c ; Kœhlee, Bull. Sei. Fr. Belg., XXXI, 1898, 

 p. 97 ; Kœhler, Bull. Sei. Fr. Belg., XLI, 1907, p. 334. 



Ophiothrix cataphrada : voN Martens, Arch. Naturg., XXXVI, 1870, 

 p. 259 ; Lyman, loc. cit., p. 227 ; Pfeffer, Abh. Senckenberg. Naturf. Gesell., 

 XXV, 1900, p. 85. 



One specimen ; Yayeyama, Kiu-kiu. One specimen ; Okinawa. 

 Two specimens ; Shimoda, Izu. Numerous specimens ; Aral Beach 

 to Gorgonian Cave, Misaki Marine Biological Station. 



