IOS MADOKA SASAKI. 



Fani. Chiroteuthidse Gray 1849. 

 Subfam. Chiroteuthinae Chun 1908. 

 Genus Chiroleuthis d'Orbigny 1839. 



Subgenus Chirothauma Chun igio. 

 23. C'hiroteuthis (Chirothauma) imperator Chun 19 10. 

 Local name : Yùrei-ika, Mizu-ika (Sagami). 



C heirot eitthis macrosoma, Nishikawa 1906, p. iog, pi. iii. Off Shimo-osa Prov. 



Chiroieuihis {Chirothawnd) imperator, Chun igio, pp. 240, 241, 281, pl. xxxviii; pi. xxxix, figs. 



1-10; pi. xl, figs. 2-5, 7; pi. xli; pi. xlii, figs. 1-4; pl. xliii; pi. xliv, figs. 3, 6-16. Nias- 



Siid-Kanal, Sumatra; Sagami-Bai, Japan. 

 List of specimens examined : 



Specimens 



Mantle-length 



Locality 



Date 



Where preserved 



2, sex ? 



1 10-140 mm. 



Misaki 



Sept. 1887 



Sci. Coll. 



3, much injured 





Odawara, Sagami 



May I, 1891 



do. 



2* 



i4g-i8o mm. 



Misaki 



Aug. 27, 1891 



do. 



i£ 



245 mm. 



Off Misaki, 350 

 fathoms 



May I, i8gg 



do. 



I, *? 



225 mm. 



Misaki 



Sept. 24, igoS 



do. 



I* 



100 mm. 



Sembombana, 

 Numazu 



Sept. igi2 



Agr. Coll. 



In some badly preserved specimens, the neck region is narrowed as 

 was stated by Goodrich for CJiirotentJds macrosoma from off the Kistna 

 delta. 



Subfam. Idioleulhinae nov. 



Genus Idioteuthis nov. 

 24. ldiotetithis latiphtna sp. nov. PI. III. 

 Diagnosis.— Body large, with thick choroidal integument; surface 

 smooth in all parts. Mantle elongate-conical, being broadest anteriorly ; 



