8 Prof. M‘Intosh’s Notes from the 
Chlorcemide, was observed in either dorsal or ventral tufts, 
and their thin-walled condition is noteworthy. 
Trophonia sarsi, sp. n. 
Dredged by the ‘Challenger’ at Station 156, near the 
Antarctic Sea, 26th February, 1874, lat. 62° 26’, long. 
95° 44’, at a depth of 1975 fathoms in Diatom ooze. This 
form is one (of not a few examples of the Polychets) in 
this great Expedition which has apparently not come under 
the specific instructions for the preservation of marine 
Invertebrates, since only fragments of skin, a piece contain- 
ing several pulpy segments, pieces of the intestinal canal, and 
the proboscis indicated the specimen. Thus it was put aside 
for greater leisure than could be afforded for the preparation 
of the ‘Challenger,’ vol. xii. It seems to have been an 
annelid of some size, probably 2 inches or more in length, 
and with a breadth at least of 3 to 4mm., the skin at the 
feet bearmg numerous long clavate papille with slender 
stems ending in bulbous tips, and the body appears to have 
been more or less flattened posteriorly. So far as can be 
ascertained from the pulpy fragments, it seems to be a 
Chloreemid, but diverges in several particulars from any 
known form. 
As only fragments of skin and loose bristles or separated 
groups of bristles were available, it was not easy to apportion 
these to their respective sites—indeed, a certain ambiguity 
still remains in this connection. It is not possible to say 
whether the longer anterior bristles formed a cage as in 
Trophonia plumosa and allied forms, as nothing in the 
preparation indicated such. What appeared to be dorsal 
tufts consisted of somewhat slender, smooth, translucent 
bristles (Pl. III. fig. 3), tapering from the base almost imme- 
diately to a long, fine, hair-like point. The inferior division 
of the foot contains no less than three kinds of bristles. 
The most conspicuous is a group of much elongated, slightly 
golden bristles (Pl. III. fig. 4.@) with thin walls like those 
of Brada graviert which stretch far outward from the foot, 
and which are easily bent and broken like those of the 
species Just mentioned. The base is broad and apparently 
flattened, and they taper almost from this distally and end 
in a delicately tapered point. Some isolated bristles of this 
kind were much larger and longer than the example sketched, 
but the region to which they belonged could not be ascer- 
tained. The largest, like those of Brada gravieri, were apt 
to collapse in Farrant’s solution and present a keel. Some 
