NOTES ON THE JAPANESE MYOPSIDA. 603 



Specimens 



Aleasuremcnts 



Male 



Female 



I 





3 



4 







4 



Mantle-length 



mm 



mm 

 07 



mm 

 87 



mm 



mm 



IOs 



mm 

 104 



mm 

 104 



mm 

 OO 



Diameter of the largest sucker 

 ot 1st arm 



1 5 



1-5 



I.I 



'•5 



1.3 



1-5 



%s 



I S 



Diameter of the Largest sucker 

 of 2nd arm 



35 



3-5 



3-5 



3-8 



2.6 



2.8 



2.5 



2.4 



Diameter of the largest sucker 

 of 3rd arm 



4 



4 



3-6 



4 



3-5 



3-4 



3-2 



3-3 



Diameter of the largest sucker 

 of 4th arm 





2 



2 



2 



1.6 



1-5 



1-5 



1.6 



14. [Loligo tetradinamia Ortmann 1888.] 



Loligo tetradinamia, Ortmann 1888, p. 659, pi. xxiii, figs. 4a-4k ; 

 pi. xxv, fig. I (Tòkyo Bay; Kòchi, Tosa). — Berry 1912a, p. 

 399 (Same, Mutsu Prov ; Tòkyo Bay; Tokyo; Okayama ; 

 Kawatana, Hizen Prov.). 

 After examining a large series of L. japonica, I quite agree with 

 Berry in the opinion that the present species is possibly synonymous 

 with L. japonica. 



15. Loligo sumatrensis d'Orbigny 1839. 



Local name : Beka (Okayama). 



Loligo sumatrensis, d'Orbigny, in d'Orb. et Férussac 1839, p. 317; 

 Loligo, pi. xiii, figs. 1-3 (Indian Ocean, Sumatra). — d'Orbigny 

 1845, P- 349-— Gra > r !849> P- 77— Tryon 1879, p. 145, pi. 

 lviii, figs. 190, 191. — Appellöf 1886, p. 32, pi. i, fig. ii; 

 pi. iii, figs. 11-15 (Nagasaki). — Brock 1887, p. 595 (Amboina). — 

 Ortmann 1888, p. 664. — Berry 1912a, p. 399. 



List of specimens examined by me. 

 i. Six specimens, 1 5 o_, Okayama market, April 25, 1901 

 (Sci. Coll.). Mantle length 67-53 mm. 



