302 



ART. 2. — H. MATSUMOTO : 



Ophioplocus imbricatus: Lyman, 111. Cat. Mus. Comp. Zool., I, 1865, 

 13. 69 ; VON Martens, Arch. Naturg., XXXVI, 1870, p. 246^^ ; Lyman, Rep. 

 Challenger, V, 1882, p. 20; Studer, Abh. K. Prenss. Akacl. Wiss. Berlin, 

 1882, p. 7 ; Marktanner-Tukneretscher, Ann. K. K. Naturh. Hofmus. Wien, 

 ir, 1887, p. 295 ; Brock, Zeitschr. wiss. Zool., XLVII, 1888, p. 477 ; Bell, 

 Proc. Zool. Soc. London, 1888, p. 388; Döderlein, Zool. Jahrb. Sys., Ill, 

 1888, p. 840 ; Loriol, Rev. Suisse Zool., I, 1893, p. 298 ; Loriol, Mém. 

 Soc. Phys. cl'Hist. Nat. Genève, XXXII, 1894, p. 12 ; Pfeffer, Jahrb. Wiss. 

 Anstalt, Hamburg, Xm, p. 47 ; Döderlein, Semon — Zool. Forschungsr., V, 

 1896, p. 283; Ludwig, Abh. Seuckenberg. Naturf. Gesell., XXI, 1899, p. 

 544; Kœhler, Exp. Siboga, XLY, Pt. 2, 1905, p. 333; Kœhler, Bull. Sei. 

 Fr. Belg., XLI, 1907, p. 288 ; Clark, Bull. Mus. Comp. Zool., LI, 1908, p. 

 289 ; Clark, Bull. U. S. Nat. Mus., LXXV, 1911, p. 30. 



One specimen ; Okinawa. 



Indo-Pacific. Okinawa may be the northern 

 limit of this species. 



Opliioiylocus Japonicus Clark. 

 Ophioplocus imbricatus : Lyman, Bull. 



Mus. 



Comp. Zool., Ill, 1874, p. 228 (pars); Marktanner- 

 Turneretscher, Ann. K.K. Naturh. Hofmus., 11, 1887, 

 p. 295 ; Ives, Proc. Acad. Nat. Sei. Philadelphia, 1891, 

 p. 4, PI. V, figs. 6-10. 



OpJdoplocus japonicus : Clark, Bull. Ü. S. Nat. 

 Mus., LXXV, 1911, p. 30, fig. 5. 



Namerous specimens ; Eno-m^a, Surnga. 

 Numerous specimens ; Misaki. Numerous speci- 

 mens ; Kominato, Bôshù. 



Pacific coast of Honshu, probably eastwards to the limit of 

 the Kuroshiwo Sti-eam. 



Fig 83. Ophioplocus 

 Imhricutus. x 5. a. 

 Side view of three 

 firm joints near disk. 

 b. Dorsal view of 

 four arm joints near 

 disk. 



1) These papers were not seen by me. 



