REPORT ON THE ANNELIDA. 
93 
!■ 
long and faintly bifid tips. The latter gradually diminish in length from above down- 
ward (PI. YIIa. fig. 4, one from the middle of the series). A faint opacity by trans- 
mitted fight also occurs from the commencement of the spinous region at the tip 
downward. These bristles come nearest to those of Lagisca. 
In the intestine were greyish-brown masses of cells and granules. 
Attached to the twenty -first left foot is a curious pedunculated organism that at 
first sight presented the appearance of a minute white Lucernaria. The peduncle is 
somewhat short and vdde, and terminates interiorly in a small sucker-like body having 
a curved lateral process like a hook, which loosened with a jerk when the structure was 
detached from the foot. The peduncle gradually dilates upward into a broad and 
somewhat thin expansion or disk, which has its upper surface furnished with a series of 
filif orm tentacles. In the centre of these are two remarkable pear-shaped firm bodies 
fixed by a broad base (indicated externally in each case by a scar), their pointed 
ends projecting freely upward. The total height of the structure is 2 A mm., and 
the breadth of the disk 2 mm. The peduncle is eccentric in position, the scars of 
the two hard bodies appearing on the larger or external moiety of the disk (see 
woodcut 1). 
The bristles are aUied to those of Lagisca, while the eyes, scales, and ventral papillse 
diverge. The subtentacular cirrus is unique, and is akin to the proboscidian process in 
the Acoetidee {^Eupompe and Panthalis). In transverse section both cuticle and hypo- 
derm appear to be very thin, so that the ventral area forms a mere band. The nerve- 
cords are small and much flattened. 
Lagisca (?) kermadecensis, n. sp. (PI. XIII. fig. 8 ; PI. XIIa. figs. 4—6). 
Llahitat. — Trawled at Station 170 (a little north of the Kermadec Islands), July 
14, 1874; lat. 29° 55 ' S., long. 178° 14' W.; depth, 520 fathoms; bottom temperature 
43°‘0, surface temperature 65°'0; volcanic mud. 
A fragmentary example of a small species, measuring about 5 mm. in length and 
2 A mm. in breadth. 
The head bears four brownish eyes ; the two smaller occupying the sides of the head 
posteriorly, and the two larger being situated on each lateral eminence, and only partially 
visible from the dorsum. The tentacle is absent, but its basal region is tinted dark 
grey. The other cephalic appendages are also absent. The ventral cirrus is a simple 
tapering process, its tip extending far beyond the base of the bristles, and even beyond 
the spine. 
In structure the feet somewhat resemble those of Evarne or Lagisca, but are dis- 
tinguished by a remarkable cristate lobe above the spine of the inferior setigerous region. 
