158 ART. 2. — H. MATSUMOTO : 



Ojyhiactis savignyi (Müller k Troschel). 



Ophiolepis savignyi: Müller & Troschel, 8ys. Ast., 1842, p. 95. 



OpMölepis sex-radia : Grübe, Wieg. Arch. Naturg., 1857, p. 343.'^ 



Ophiactis sen-radia : Lütken, Addit. ad Hist., IE, 1853, p. 126 ; Lyman, 

 Hl. Cat. Mus. Comp. ZooL, I, 1865, p. 115; Clark, Ann. New York Acad., 

 XI, 1893, p. 412^>; Kœhler, Bull. Sei. Fr. Belg., XXXI, 1898, p. 72. 



Ophiactis Tcrebsii : Lütken, loc. cit.; Lyman, loc. cit., p. Ill ; Ljungman, 

 Ofv. K. Vet. Akad. Förh., 1866, p. 323'^; Verrill, Transact. Connect. Acad. , 

 I, 1867, p. 265 ; Duncan, Journ. Linn. Soc. London, XIV, 1879, p. 465 ; 

 Ljungman, loc. cit., 1871, p. 627 ; Rathbün, Transact. Connect. Acad., V, 

 1880, p. 153 ; Verrill, Bull. Lab. Nat. Hist. Iowa, V, 1899, p. 34^ ); Clark, 

 Bun. U. S. Fish Comm., H, 1901, p. 246. 



OpJiiactis reirüiardti : Lütken, loc. cit., p. 161, PI. Ill, fig. 7. 



OpUadis savignyi : Lyman, Rep. Challenger, V, 1882, p. 115 ; Ludwig, 

 Mem. Couronn. Sav. Acad. Belg., XLTV^, 1882, p. 14; Lütken & Morten- 

 sen, Mem. Mus. Comp. ZooL, XXIH, 1899, p. 140 ; Kœhler, Exp. Siboga, XLV, 

 Pt. 2, 1905, p. 26 ; Kœhler, Bull. U. S. Nat. Mus., LXXXIV, 1914, p. 41. 



Two specimens ; Koajiro, Misaki. Numerous specimens (be- 

 longing to the First High School); Misaki. 



Korean Seas (Duncan). 



Malaysian waters. Australia. Sandwich Is. Gulf of Cali- 

 fornia. West Indies. 



The larger one of the two specimens mentioned first is 3.5 mm. 

 in the disk diameter and 10 mm. in the arm length. The smaller 

 one is 2 mm. across the disk. Both are six-armed, and have no 

 distinct central plate. In the larger specimen, the dorsal arm 

 plates are often divided into two or three pieces, and are scarcely 

 lobed on the outer side; the colour is yellowish brown in alcohol, 

 and faintly banded on the arm near the extremity. In the 



1) These papers were not seen by me. 



