REPOET ON THE CEPHALOPODA. 



165 



specimen were globular and protruded from tlieir sockets, so tliat the presence or absence 

 of a sinus in the eyelid could not be determined. 



The Arms are very unequal, the order of length being 2, 3, 4, 1 ; the longest are 

 rather more than half the length of the body ; the shortest about one-fifth. They are 

 quadrilateral in section ; the third pair bear a distinct but narrow web up the outer 

 aspect and the fourth pair a keel on the dorso-lateral angle. There is no membrane 

 bounding the sucker-bearing face. The suckers (fig. 8) are in two series throughout, 

 and placed upon subu,late conical peduncles, they are spheroidal and oblique and the 

 horny ring bears in its distal semicircumference about eight or ten broad, sc[uare-cut 

 teeth, standing close together. No trace of a hectocotylus was observed on the single 

 specimen in the collection. The bases of the arms are not connected by any umhrella. 

 The buccal membrane is thin, has seven bltmt points, and is connected with the arms 

 by ligaments in the usual way. 



The Tentacles are about as long as the body and have slender subcylindrical stems. 

 The club (fig. 9) is but slightly expanded, and has no protective membranes and no 

 web. The wider portion is covered with about nine series of minute suckers, which 

 have very long slender peduncles springing from a conical base and smooth horny rings 

 (fig. 12). The narrow terminal part of the club bears about four series of much larger 

 suckers (fig. 10), which are also mounted on large peduncles: their horny ring is 

 armed in its distal semicircumference with about fourteen long acute teeth, and on its 

 proximal margin with ten or twelve blunt quadrate teeth. The suckers at the extreme 

 tip of the club resemble those last mentioned, but are smaller, and the proximal half of 

 the horny ring is smooth (fig. 11). At the proximal end of the club the peduncles of the 

 suckers become shorter till these are almost sessile. They extend for a considerable 

 distance down the stem, but it was impossible to ascertain exactly how far. No fixing 

 cushions could be seen, though their absence cannot be regarded as proved. 



The Surface is smooth. 



The Colour is white, probably transparent when alive, with elongated, reddish 

 chromatophores here and there. 



The Gladius was not extracted ; it had been damaged near the anterior end of the 

 fin, but it was possible to see that it forms a hollow cone posteriorly. 



Dimensions. 



Length, total. 



End of body to mantle-margin, 



End of body to eye, 



Breadtb of body, . 



Length of fin, 



Breadth of fin, 



67 mm. 

 32 „ 

 35 „ 

 S „ 

 13 „ 

 19 „ 



