14 
THE VOYAGE OE H.M.S. CHALLEHGEK. 
Chloeia fasca, n. sp. (PL II. figs. 1 and 2 ; PI. Ia. figs. 14, 15 ; PI. IIa. figs. 1, 2). 
Habitat. — Dredged near Banda (a Station ofi* the Moluccas), 1st October 1874. 
The entire body of this species is iridescent dusky brown, with a well-marked pale 
median dorsal strijDe from the caruncle to the tail. This pale band is rendered very 
distinct by a darker brown belt on each side, so that there are really three stripes on the 
dorsum. The body is about 18 mm. long, and consists of twenty-three segments. The 
latter are broader from before backwards than in Chloeia Jlava, and on the whole are 
more evidently marked. 
The head is well-defined, and bears posteriorly a caruncle, which extends to the fifth 
body-segment. The folds of the organ are more lax than in Chloeia Jlava ; indeed they 
form a series of distinct vertical lamellae, which are easily separated externally down to 
the ventral fold. The four eyes are distinct, two being at the anterior border and two 
toward the posterior border of the head in front of the caruncle. At the anterior end 
of the latter is a very long tentacle, which exceeds the caruncle in length. Like the 
caruncle it is pale buff in the preparation, without any special development of pigment. 
Two shorter tentacular cirri spring from the anterior border of the head ; and the inferior 
cirri at the sides of the labial folds are pale, short, and slender. The labial folds are large 
and prominent, and the mouth opens immediately behind, i.e., at the anterior border of 
the third body-segment, which has two curved rugm in the middle line. 
The branchise commence on the fifth body-segment, and continue to the tail, about 
seventeen being visible; while the first four feet, on the other hand, have a second (smaller) 
dorsal cirrus, placed to the inner side of the bristle-tuft. In the preparation the organs 
are directed backward, with the pinnse placed outward and backward, so that the main 
stem is internal, a feature less prominent in Chloeia Jlava. There are generally five 
branches on each side of the main stem, each furnished with secondary pinnae, the basal 
branch on the outer side being larger than the rest. Their colour throughout is slightly 
ferruginous. 
Most of the bristles had been swept from the dorsal tufts, only the anterior and 
posterior segments having escaped. The bristles on the whole are more opalescent than 
in Chloeia Jlava, though a tinge of the same characteristic greenish-yellow occurs in all. 
As, however, many of the best marked and most typical bristles are absent, the following 
remarks will probably require qualification when a complete example is obtained. Three 
types are apparent in the dorsal tuft ; first, a very slender elongate kind, which diminishes 
from the lower third to a little below the fork (PI. Ia. fig. 14), the slender tip extending 
far beyond the point figured; and one tinted of a deep yellow throughout this region, the 
long limb of the fork being extremely produced, and, like all the other tips of the dorsal 
bristles, minutely granular from microscopic projections. The next kind (PI. IIa. fig. 1) 
has either a deep yellow tip and pale shaft, or is more elongated, with a pale attenuated 
