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THE VOYAGE OE H.M.S. CHALLENGER. 
Ampharete herguelensis, n. sp. (PL XLVII. fig. 10 ; PI. XXVIa. figs. 22-24). 
Habitat. — Dredged at Station 149 h. (off Cumberland Bay, Kerguelen), January 
29, 1874; lat. 48° 45' S., long. 69° 14' E.; depth, 127 fathoms; surface temperature, 
39°'8 ; sea-bottom, volcanic mud. Found amongst the debris sent from this Station. 
A small species, the larger example measuring about 10 mm. in length, and having a 
diameter, exclusive of the bristles, of 1'5 mm. at its widest part. 
The anterior fan of bristles is made up of longer forms than in the previous species, 
and they possess a pronounced terminal curve. In the smaller specimen each of these 
has a minute filiform process projecting from the somewhat blunt tip, but in the larger 
the majority of the longer bristles are devoid of this appendage. The paleolse, moreover, 
are few in number, probably seven or eight. Each tapers very gradually from base 
to tip (PL XXVIa. fig. 22), the latter being either somewhat blunt, or provided with 
the filiform appendage. The convex edge in all shows a double outline, probably an 
indication of its homology with the winged forms of bristles, and this is especially 
evident in the paleolge of the smaller example (PL XXVIa. fig. 23). 
The shorter intermediate forms of the lateral bristles have long and slender tips 
devoid of any evident wing, after the type of Ampharete gracilis from St. Andrews. 
The hooks (PL XXVIa. fig. 24) have six or seven teeth and a more elongate 
(and perhaps more typical) form than in the previous species [Ampharete somhreriana). 
The lower fang, also, does not project so much beyond the inferior process as in the 
latter. 
Very fine mud with sponge-spicules, a few bristles of an Annelid, and some Diatoms 
occurred in the intestine. 
The body-wall is similar to that in Amphicteis, and considerably thinner than in the 
foregoing species, probably from greater distention. 
The Ampharete patagonica of Kinberg ^ seems to be an allied form, but the indefinite 
nature of the description leaves room for doubt. 
Ampharete gracilis, Malmgren. 
Ampharete gracilis, Malmgren, Nordiske Hafs-Annulater, p. 367, Tab. xxvi. tg. 75. 
Habitat. — Dredged in the “Knight Errant,” at Station 7, August 12, 1880; 
lat. 59° 37' N., long. 7° 19' W. ; depth, 530 fathoms; sea-bottom, Globigerina ooze. 
1 Ofversigt k. Vetensk.-Akad. Fdrhandl., 1866, p. 343. 
