NOTES ON THE JAPANESE MYOTSIDA. 



597 



mm. mm. 



Length of fourth arm (right) 8.5 8.5 



„ „ tentacle (do) 16.5 16 



Genus Sepiolina Naef 19 12. 

 6. Sepiolina nipponensis (Berry 191 1). 



Stolotenthis nipponensis, Berry 1911a, p. 36, 1 textfig. (Suruga 



Bay). — Berry 1912a, p. 414, pi. v, figs. 1-4. 

 Sepiolina nipponensis, Naef 191 2, p. 248. 

 List of specimens examined by me : 



i. Two £, specimens Kagoshima, Aug. 12, 1899 (Sci. Coll.). 

 Mantle-length 18.5 mm, 20 mm. 



ii. Two specimens Kagoshima, March 29, 19 12 (Agr. Coll.). 

 Mantle-length 18 mm, 19 mm. 



The specimens do not tally well with the genus Stolotenthis of 

 Verrill, but may be left in the genus Sepiolina. Comparing them 

 with Berry's original description of the species, the following differences 

 are noticeable : the umbrellas between the arms are all pretty wide 

 and especially so between the dorsal arms where the umbrella ex- 

 tends to about the middle of the arms, instead of all being similarly 

 narrow ; the fins are not so large as to extend to the anterior margin 

 of mantle, but are rather small as usual in Sepiolids ; the order of 

 arms is 2 = 3, 1, 4, instead of 2, 1, 3, 4. 



Subfani. SEPIADARIN.SI. 



Genus Sepiadarium, Steenstrup 1881. 



7. Sepiadarium kochii Steenstrup 1881. 

 Sepiadarium kochii, Steenstrup 1881, p. 214, pi. i, figs. 1-10 

 (Hongkong, India). — Brock 1887, p. 595 (Amboina). — Good- 

 rich 1896, p. 3 (Off the southern coast of Ceylon, Andamans). 

 — Appellöf 1898, p. 593, pi. xxxii, figs. 9, 10; pi. xxxiii, 



