REPORT ON THE CEPHALOPODA. 185 



wliich is indicated by a cartilage-like speck ia the body wall, there extend backwards 

 two cartilage-like lines (fig. 11), diverging at an angle of some 60°, each of which bears 

 about thirteen minute pointed papillae ; a similar row stands upon the tissue covering 

 the gladius in the middle of the back. The siphon is short, bluntly conical, and usually 

 projects only very little above the margin of the mantle. 



The Head is very short but broad; the eyes are prominent and the lens protrudes 

 from the larger portion of the organ ; behind the eye is a papilla, and in front of and 

 below it are several minute, white, spherical bodies (fig. 1), which in many cases are 

 embedded in a prominent, irregularly-shaped mass of tissue. 



Tlie Anns (fig. 1) are short and very unequal, their order of length being 3, 4, 2, 1 

 (in some specimens 4 and 2 are almost equal) ; the third pair being twice as long as the 

 second and three times as long as the first. Each arm bears two rows of minute pedun- 

 culate suckers (fig. 13), which have smooth horny rings. The umbrella extends halfway 

 up the dorsal arms, and is of about the same breadth between them and the second and 

 between these and the third, while it is absent between the ventral arms and between 

 them and the third pair. The huccal membrane has five points, below it passes into 

 two fillets which run side by side, separated by a narrow groove, to join the ventral arms 

 (fig. 1). The outer lip is thin; the inner thick and rounded, both being smooth. 



The Tentacles (fig. 12) are comparatively stout, twice as thick as the sessile arms, 

 very slightly thickened towards the club, and then tapering to exceedingly fine points. 

 The club has a very narrow delicate web up either side, and bears four rows of pedun- 

 culate suckers (fig. 14). These are rather larger at the middle of the club than at either 

 end, and those of the two median series are slightly larger than the lateral ones ; at the 

 tip they are exceedingly minute ; and two series of very small ones commence about half 

 way up the stem and continue up to the club. They are spheroidal in form and oblique, 

 with a small aperture, and a smooth horny ring, surrounded by long, narrow, radially 

 disposed papillae, from which radial grooves pass towards the margin. 



The Colour (in the spirit specimens) is pale, almost white, semitransparent. 



The Surface is smooth but for the papillse above described. 



The Gladius is as long as the mantle, very narrow, and slightly expanded behind into 

 a lanceolate extremity. 



The above description has been drawn up from specimens kindly lent to me by 

 Professor Steenstrup ; those obtained by the Challenger were young, only 7 to 8 mm. 

 long in the body, and at first glance not at all unlike the figures of Cranchia megalops, 

 Prosch,^ and although I have no hesitation in referring them to Cranchia reinhardtii, 

 they present many interesting difi"erences from the more developed forms. The fins are 

 smaller comparatively, the arms are shorter and have very few suckers, the dorsal arms 



' Nogle nye Cepbalopoder, figs. 4, 5, 6. 

 (ZOOL. CHALL. EXP.— PART XLIV.— 1 886.) Xx 24 



