REPORT ON THE ANNELIDA. 
293 
tentacles do not appear to have been boldly annulated. The maxillse (Fig. 52) are dark 
brown, and the basal spathidate region forms by the apposition of its halves a triangle in 
front and two crescentic parts posteriorly. The left great dental plate has four teeth, the 
right also four. Both are less deeply tinted than the maxillae. The left lateral paired 
plate shows three more prominent outer teeth, and one or two less evident inner teeth. 
The left lateral unpaired has seven or eight denticulations. The right lateral has about 
the same number. A single accessory plate, acutely pointed, occurs at each side. The 
blackish pigment-patch below each paired plate anteriorly is unusually well defined. 
The mandibles (Fig. 53) are dark brownish, with the exception of the narrow dental 
margin in front of the dorsal line' of the shaft. The ventral dental area (usually pale) 
has its posterior three-fourths brownish. 
The branchiae are represented on the sixth foot by a short simple filament on each 
side. At the tenth foot the process has three divi- 
sions ; at the twentieth (PL XXXIX. fig. 12) there 
are four, which, as in the former species, appear 
disproportionate to the short cirrus. Two divisions 
occur in the branchia of the thirtieth foot; while 
only a single process exists on the fiftieth foot, and 
the latter condition appears to continue throughout 
the greater part posteriorly, though the state of the 
specimen prevents satisfactory examination. 
Each foot bears anteriorly a pair of pale brownish 
spines of moderate strength. About the thirtieth 
foot a single stout deep brown spine occurs superiorly, 
and a pair of long dark brown hooks inferiorly. The 
superior bristles have the ordinary form. The brush - 
shaped kinds (PI. XXIa. fig. 1) have broad tips, 
with many teeth, while a series of lines from these 
occur on the adjoining broad region. The compound bristles (PL XXIa. fig. 2) have 
a bifid tip, the terminal division of the fork being strong. 
The posterior feet have a single stout dark brown spine and a pair of long hooks. 
The latter (PL XXIa. fig. 3) are characterised by the somewhat small angle (less than 
a right angle) between the terminal process and the great fang, and the general contour 
of the tip. The hook somewhat approaches that of Eunice cliallengeri, but the other 
differences between the species are sufficiently diagnostic. 
In the intestine of one were fragments of shells and minute Crustacea with Fora- 
minifera. In the specimen provided with a head the pellets contained masses appar- 
ently pertaining to the Polyzoa, and sandy mud in which sponge-spicules. Diatoms, 
Algge, and other debris were present. 
Fig. 53. 
Fig. 52. — Maxillae and dental plates of Eunice 
barvicensis, n. sp. ; x 15 diameters. 
Fig. 53. — Mandibles viewed respectively from the 
dorsal and ventral surfaces ; x 15 diameters. 
