HOYLE: REPORTS ON THE CEPHALOPODA. 9 
below I have come to the conclusion that its affinities are rather with the genus 
Alloposus. It shares with this the 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. 6-115 Plato 4, Fig. 1.) 
Bolitaena microcotyla, Steenstrup, '59, p. 183. 
de y Hoyle, '86, p. 16. 
Habitat. — Station. 3410, off Bindloe Island, 4 miles W., April 3, 1891 ; 
lat. 09 19^ N., long. 90° 31^ W., 331 fathoms ; black sand ; temperature, sur- 
face 82°, bottom 44.92; one specimen, No. 7955. [H.55.] 
'l'his 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 theré 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 semi-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 W -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 siphon 
is very broad at the base and tapers rapidly down to a long tube, which termi- 
nates at a considerable distance in front of the eyes. The funnel 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 
