IIOYLE : RErOKTS OX THE CEPHALOrODA, 9 



below I have come to the conclusion that its affinities are rather with the genus 

 Alloposm. It sliares with this tiie soft gelatinous consistency, the short rounded 

 body, the relatively extensive umbrella, the large siphon, attached for its 

 whole length to the inferior surface of the head, and the ligament attaching 

 the margin of the mantle to the body in the middle line and passing just under 

 the posterior edge of the siphon (compare Verrill, '81, Plate 39, Fig. 2). The 

 chief distinction is that it has only a single row of suckers, but I think this 

 is hardly sufficient to outweigh the numerous points of resemblance. The 

 genus may perhaps be regarded as having the same relation to Alloposus that 

 Moschites (Eledone) has to Polypus {Octopus). 



5. Bolitaena microcotyla. 



(Plate 3, Figs. 6-11; Plate 4, Fig, 1.) 



Bolitaena microcotijla, Steenstrup, '59, p. 183. 

 Hoyle, '86, p. 16. 



JTa6ito<. — Station 3410, off Bindloe Island, 4 miles W., April 3, 1891 ; 

 lat. 0° 19' N., long. 90° 34' \V., 331 fathoms ; black sand ; temperature, sur- 

 face 82°, bottom 44. °2 ; one specimen. No. 7955. [H. 55.] 



This occurrence extends the known range of the genus, for the type species 

 is from the Atlantic. The locality of a specimen in the Hamburg Museum, 

 shown me by Dr. Pfeffer, is unknown. 



In general appearance this young specimen resembled a spheroidal mass of 

 jelly barely 2 cm. in diameter ; on turning it about there were seen on one 

 side several rows of suckers and on the other a deep transverse groove, whilst 

 at opposite poles were two large eyes shining through the integument. The 

 photographs reproduced on Plate 3 give an idea of the general appearance, 

 whilst the seuii-diagrammatic side-view (Fig. 10) shows more clearly the dis- 

 position of the parts. 



The Body and Head have no line of demarcation between them, but form 

 a rounded mass ; the mantle-opening is very extensive, reaching far beyond the 

 eyes ; it presents a somewhat \A/ -shaped appearance, owing to the arrangement 

 of its attachments ; the free border of the mantle is united to the ventral 

 aspect of the body by a ligament in the middle line, which passes just under 

 the hinder margin of the funnel, whilst this latter has on either side a liga- 

 ment binding it down to the apex of the gill (Plate 3, Fig. 11). The stiplum 

 is very broad at the base and tai)ers rapidly down to a long tube, which termi- 

 nates at a considerable distance in front of the eyes. The futimi organ is very 

 prominent and indeed can be seen shining through the translucent wall of 

 the siphon. It consists of an elongated white pad in the shape of a W, the 

 central point being attached to the dorsal middle line of the siphon, whilst 

 the extremities of the lateral limbs nearly meet in the ventral median line. 

 On either side of the base of the siphon is a deep hollow, covered by a flap 



