io6 



MADOKA SASAKI. 



Antilles, Campeche Bay, I3°N. 27°W, 2o°N. 23°W), Mediterranean (Nizza, Agypt), 

 Indian Ocean (Ceylon, Madagascar), Pacific Ocean (La Plata, China, Sagami Bay). 



Material examined : One male and female specimens. Odawara, 

 Sagami Prov., Nov. 1885 (Sci. Coll.). Mantle-length 240 mm. in 

 250 mm. in 



Genus Symplectoteuthis Pfeffer 1900. 



20. Symplectoteuthis oualaniensis (Lesson 1830). 



Loligo oualaniensis, Lesson, in Lesson et Garnot i826-'30, p. 240, pi. i, fig. 2. Oualan (fide 

 Pfeffer). 



Ommastrephes oualaniensis, d'Orbigny, in Fér. et d'Orb. 1835-48, p. 351, Calmars pl. iii, pl. 



xxi, figs. I, 2. Ommastrephes pl. i, figs. 14, 15. Gray 1849, p. 63. Hoyle 1886, 



p. 162. Coral Sea, North of the Admilalty Island. 

 Symplectoteuthis oualaniensis, Pfeffer igoo, p. 180. Hoyle 1904, p. 32, text-fig. E. East of 



Cocos Isl. Hoyle 1905, p. 982. South Nilandu Atoll. Wiilker igio, p. 2r. 



Misaki. Pfeffer 191 2, p. 502, pis. xl, xli, pi. xlii, figs. 1-4. Laysan, Ind. Oz., 



Okinawa, Japan, Oualan, Südsee. Berry 1912a, p. 438. 



Japanese specimens of this species have not come under observation 

 of the author. 



21. Symplectoteuthis luminosa Sasaki 1915. 

 Local name : Suji-ika (Sagami Prov.). 



Symplectoteuthis luminosa, Sasaki 19 15, p. 144, pi. iv, figs. 7-13, text-fig. 4. Off Misaki. 



This is a species standing in very near relationship to Smplcctoteuthis 

 oualaniensis (Lesson), but differing from it in following respects : 



Luminous organs present. Hectocotylized left ventral arm as thicsc k' 

 but a little shorter than, the right ventral ; provided with about 24 normal 

 suckers in the proximal parts ; protective membranes as broad and thick 

 as those of the right arm ; distal 1/3 of the length not naked, but with 34 

 minute tubercles each set on a swollen base. Horny ring of largest 

 tentacular suckers with only a single large tooth on distalmost edge. 



