112 THE VOYAGE OF H.M.S. CHALLENGEE. 



Inioteuthis, Verrill. 



Inioteiithis morsei, Verrill (PI. XIV. figs. 1—9). 



1881. Inioteuthis Morsei, VII., Ceph. N.E. Amer., p. 417. 

 1884. Sepiola bursa, (?) Pffr., Ceph. Hamb. Mus., p. 6, fig. 6. 



1886. Inioteuthis Morsei, Appellof, Japanska Ceph,, p. 15, pi. ii. figs. 15, 16; pi. iii. figs. 16, 

 19, 20, 23. 



HaUtat.— 'Station 233, off Kobe, Japan, May 17, 1875 ; lat. 34° 39' N., long. 

 135° 14' E. ; 8 to 14 fathoms, mud. Four specimens, $ . 



Bay of Yedo (Verrill) ; Hong Kong (Pfeffer) ; Japan (Appellof). 



The Body is oblong, rounded behind and rather longer than broad ; the fins are 

 subcircular, notched at the anterior attachment to the body, but not at the posterior ; 

 they are about haK as long and half as broad as the body. The mantle is attached to 

 the head by a broad ligament reaching nearly the whole distance from eye to eye ; the 

 mantle connective is of the usual form. The siphon is long, slender, conical, slightly 

 expanded at the extremity, and nearly reaches the gap between the ventral arms. 



The Head is broad and the eyes prominent ; the lacrymal pore below and anterior 

 to the eye is in several specimens unrecognisable. 



The Arms are unequal, the order being 2 = 3, 1 = 4; they are slightly longer than 

 the body, conical and gradually tapering towards the extremities. The suckers are in four 

 series, except a few (four to eight) proximal ones which are in two series (fig. 9), they are 

 hood-shaped (figs. 2, 3) and oblique, with very slender peduncles from which they readily 

 become detached. The horny ring is entire and surrounded by a narrow papillary area. 

 The hectocotylus was not seen, all the specimens being females. The umbrella extends 

 about equally between the first, second, and third arms, namely, about up to the fourth 

 row of suckers, while between the third and fourth arms it reaches to the seventh row, 

 and is entirely absent between the two ventral arms. The buccal membrane has 

 six points, but no suckers. The outer lip is thin, the inner thick and papillate. 



The Tentacles are nearly twice as long as the body, the stem is flattened on the 

 inner side, rounded on the outer ; the internal dorsal angle is produced into a thin 

 membrane, which becomes wider distally. The club (figs. 4, 5) is elongated and 

 but' slightly expanded, it is covered for three-quarters, and near the tip over almost 

 the whole, of its circumference with exceedingly minute suckers, which give it a velvety 

 appearance even under a lens. The suckers are goblet-shaped, with a minute aperture 

 leading into the infundibulum and a bell-shaped horny ring, the base of which is 

 directed towards the peduncle (figs. 6—8). 

 The Surface is smooth all over. 



