a. 
Gatty Marine Laboratory, St. Andrews. 7 
resemblances in the body and posterior bristles to Sagitella 
opaca, Khlers *, one of the Typhloscolecidee, it differs wholly 
in the cephalic region and other respects. On the whole, 
Fauveliopsis appears to approach the Chloremide. 
Brada gravieri, sp. X. 
Trawled by the ‘Challenger’ at Station 158, considerably 
south of Australia, lat. 50° 1’ 8., long. 128° 4’ E., in 
Globigerina ooze, along with Hyalinecia benthaliana and 
Grubianella antarctica, var. A small, somewhat elongate- 
ovoid annelid, 5 mm. long by 2 mm. at its widest part 
(Pl. I. fig. 4), the surface of which was uniformly 
covered with a whitish coating like down, but on examina- 
tion this was found to be a calcareous powder with fragments, 
often rounded, of Globigerine on the papille of the surface, 
and which partly fell off when touched, leaving a white 
powder on the bottom of the vessel. The entire annelid, 
both dorsaliy and ventrally, was thus coated, with the excep- 
tion of the extruded proboscis. The extension of the con- 
tinuous and dense villous coating, ventrally as well as 
dorsally, distinguishes it from B. villosa, Rathke, from which 
it also differs in shape. The entire surface is coated with 
extremely long slender papillz, far exceeding proportionally 
anything hitherto known in the group, and in this tangled 
web the calcareous ooze lodges, besides coating the papille 
with minute granules. So far as could be observed, they 
seemed to be simple filamentous papille without special 
differentiation at the top—that is, without a terminal dila- 
tation. The muscles of the body-wall, both circular and 
longitudinal, are well developed. 
As far as could be ascertained, the dorsal bristles con- 
sisted of a minute tuft (Pl. I. fig. 5) of translucent finely 
tapered bristles, the tips of which were apt to bend; these had 
the usual muscular fasciculi at their bases. Their minute 
size is in bold contrast with the ventral series, most of 
which had been broken. These consisted of proportionally 
large, straight, translucent bristles (Pl. I. fig. 6 and Pl. III. 
fig. 1, tip), which when entire must have projected con- 
siderably on each side of the annelid, and may have supported 
it in the soft Globigerina-ooze, if they did not aid in progres- 
sion. They are thin-walled and in the preparation showed a 
ridge, apparently from collapse. Their diameter at the widest 
part exceeded that of the long slender papilla. No trace of 
the transverse marks, so characteristic of the bristles of the 
* Deut. Sud-Pol. Exped. 1901-3, p. 529, pl. xxxix. figs. 16 & 17, 
