Manchester Memoirs, Vol. xlvii. (1903), No. 9. 3 



on delicate tapering peduncles which arise from the tips 

 of obliquely placed warts. The horny ring {fig. 3) has six to 

 eight pointed teeth in the distal half of its circumference, 

 the proximal half being smooth. The bases of the arms 

 are not connected by any web. Both the ventral arms are 

 hectocotylised {fig. 2) ; at about i "5 cm. from the proximal end 

 is a prominence rising gradually from the arm and bounded 

 distally by a sharp elevated wavy margin ; next comes a 

 similarly shaped but smaller prominence, bearing a small 

 sucker which is succeeded by three or four similar 

 gradually diminishing prominences which bear suckers 

 gradually increasing in size. The arrangement thus 

 merges by degrees into the normal structure of the arm. 

 The buccal membrane is smooth and is produced at regular 

 intervals into five triangular prominences which are con- 

 nected with the bases of the arms by ligaments in the 

 usual way. The outer lip is thin and smooth, the inner 

 thicker and corrugated, having the appearance of being 

 made up of a single series of papillae. 



The Tentacles are about double the length of the body 

 and have slender, somewhat flattened, cylindrical stems. 

 The club {fig. 4) is about 5 cm. in length and is but little 

 thicker than the stem. The proximal part bears about six 

 small suckers, beyond which the suckers rapidly increase 

 in size, until about the middle of the club there are four 

 very large ones. These are succeeded by three or four 

 gradually diminishing in size, whilst the tapering extremity 

 of the club bears four series of small suckers, which become 

 smaller and smaller to the distal end. Between the large 

 suckers there arises from the sucker-bearing face of the 

 club a series of ridges which pass transversely outwards, 

 and, on arriving at the margin, are continued as a 

 thickened rib along the edge of a membrane continuous 

 with the margin of the club. Each of these ribs has, 



