MONOciRAPH OF JAPANESE OPHIUROIDEA. 323 



a — Radial shields small, uot much larger than one of the trio of naked 



plates ; oral shields wider than long infernalis. 



aa — Radial shields very large, but the trio of naked plates very small ; 

 oral shields longer than wide megaîaspis. 



Ox)hiavachnella (jorgonia (Müli>er & Thoschef;). 



OpJiiarachna gorgonia : Müller & Troschel, Sys. Ast., 1842, p. 105; 

 Lyman, Rl. Cat. Mus. Comp. ZooL, I, 1865, p. 39. 



Pedimira gorgonia : Lütken, Addit. Hist. Oph., HI, 1869, p. 15 ; 

 LYifAN, Rep. Challenger, V, 1882, p. 15; BEr.r., Rep. Zool. Coll. Alert., 

 1884, p. 134; Brock, Zeitschr. wiss. Zool., XLMI, 1888, p. 471; Doder- 

 LEIN, Zool. Jahrb. Sys., Ill, 1888, p. 880; Loriol, Rev. Suisse Zool., I, 

 1893, p. 397 ; Kœhler, Ech. Indian Mus., Shallow-wat. Oph., 1900, PI. I, figs. 

 1 & 2; Pfeffer, Abh. Senckenberg. Naturf. Gesell, XXV, 1900, p. 83; 

 Kœhler, Exp. Siboga, XLV, Pt. 2, 1905, p. 8 ; Kœhf.er, Bull. Sei. Fr. Belg., 

 XLI, 1907, p. 284; Clark, Bull. Mus. Comp. Zool., LI, 1908, p. 289. 



Pedinura marmorata : Lyman, Bull. Mus. Comp. Zool., Ill, 1874, p. 

 222, PI. V, figs. 1-7 ; Lyman, loc. cit., 1882, p. 17. 



Pedimira ramsayi : Bell, Proc. Zool. Soc. London, 1888, p. 281. 



Pedinura intermedia : Bell, loc. cit., 1888, p. 386. 



Pectinura stearnsii : Ives, Proc. Acad. Nat. Sei. Philadelphia, 1891, p. 

 212, PI. Xr, figs. 1-5. 



Pedinura venusta : Loriol, Mém. Soc. Phys. d'Hist. Nat. Genève, 

 XXXII, p. 16, PI. XXIII, figs. 3-3h. 



OpJiiaracJineUa gorgonia : Clark, Bull. Mus. Comp. Zool., LII, 1909, 

 p. 117. 



One specimen (belonging to the Seventh High School, Kago- 

 sliima); Kagoshima Bay. One specimen ; Eno-m-a, Sumga. 

 Numerous specimens ; Arai Beach, Misaki. 



This Indo-Pacific species is one of the most common ophiurans 

 in the vicinity of the Misaki Marine Biological Station. 



The first specimen is very typical, and has a coarse squama- 



