6oo 



MADOKA SASAKI : 



562, 572, pl. XXXÜ, figs. 1-5, 7; pl. xxxiii, figs. 1 1 - 1 3, 20, 22 ; 



pi. xxxiv, figs. 24, 26, 29, 30 (Ternate). — Wülker 1910, p. 22. 

 Microteuthis paradoxa, Ortmann 1888, p. 649, pi. xxii, fig. 4 



(Kadsiyama). — Joubin 1902, p. 105, fig. 15. 

 Idiosepiiis paradoxa, Berry 1912a, p. 405. 

 List of specimens examined by me : 



i. Six specimens 3 3 .ç., Misaki, Dec. 29, 1908 (Agr. Coll.). 

 Mantle-length 8 — 6.5 mm. 



ii. Four specimens 1 3 Inland Sea (Agr. Coll.). Mantle- 

 length 7 — 9 mm. 



The Japanese specimens deviate from Steenstrup's description in 

 some noteworthy points. According to him, each hectocotylus has 

 only one sucker and no valve at all ; whereas, I find in the speci- 

 mens before me that the right hectocotylus is provided with 3-5, and 

 the left hectocotylus with 4-7 suckers (this characterization agrees with 

 that of Appellöfs specimens from Ternate), and that there exists a 

 semicircular membrane at the extremity of the left hectocotylus. Further, 

 the tentacles are about as thick as the arms and about twice as long 

 as the longest arm, the distal half or three-fourths of the length 

 being taken up by the club, while according to Steenstrup they 

 should be much thinner than the arms, and the club shorter than 

 half the entire length of tentacle. 



Fam. LOLIGINIDiE Steenstrup 1861. 



Genus Loligo Schneider 1784. 

 11. Loligo edulis Hoyle 1885. 



Local name : Kensaki-ika (Tokyo), Gotô-ika (Oshima, Idzu 

 Prov.), Aka-ika (Etchû Prov.). 

 Loligo edulis, Hoyle 1885a, p. 186 (Yokohama market). — Hoyle 

 1885b, p. 281. — Hoyle 1886, p. 152, pi. xxiii. — Ortmann 



