W. C. M‘INTOSH ON BRITISH ANNELIDA. 383 
it scarcely reaches halfway to the tip of the peculiarly curved terminal hook. The 
bristles throughout are faintly yellowish. 
This differs from Parmenis ljungmani in the proportional strength and structure of 
the dorsal bristles, and in the pale semitranslucent condition of the scales; but the 
ventral bristles approach each other closely. 
HArMoruoii ANTILOPES, n.s. First procured in 1865, at Lochmaddy, North Uist, and 
off the Hebrides, as well as frequently in the ‘ Porcupine’ Expeditions. 
Body moderately elongated, from three quarters to nearly an inch. Bristle-bearing 
segments about thirty-six. Head with the anterior angles characteristically truncated. 
Two comparatively large and somewhat widely separated eyes occur near the posterior 
border. In good preparations the anterior pair are not visible from the dorsum, as 
they occupy a position immediately beneath the truncated anterior angles of the snout. 
Median tentacle moderately long, slightly enlarged below the filiform tip (in spirit), 
and covered with clavate papille. The latter also occur on the antenn, which are 
small and subulate, and lie beneath the level of the former. The palpi have minute 
papilla, which toward the termination are dilated and then constricted below the 
slightly warty tip. The tentacular cirri are somewhat enlarged below the extremity, and 
covered with long cilia having bulbous tips. Moreover these organs are continued a 
considerable way (about one third) on the filiform termination above the enlargement. 
The dorsal cirri, again, resemble the latter; and their cilia reach within a short distance 
of the tip—a rather unusual arrangement. ‘The ventral cirri are slightly enlarged at 
the base, have sparsely distributed short papille; and the tips of the organs reach the 
exit of the nearest bristles. 
Only one specimen had scales, which seem to amount to fourteen or fifteen pairs. 
All are fringed, chiefly along the outer border, with long filiform cilia with somewhat 
enlarged tips. The papille on the surface are large and boldly marked, the dilated 
tips being formed of blunt processes or spines. A slight brownish coloration occurs on 
the dorsal surface where they touch each other; but the rest of the scale is pale, except. 
from the minute brownish spines of the papille. 
The dorsal branch of the foot carries a series cf conspicuously long and strong 
bristles, most distinctly marked by transverse spinous rows at rather wide intervals 
(whence the name of the species, from the resemblance of these organs to the horns of 
certain Antelopes, such as Hippotragus oryx). Those next the ventral series are long 
and nearly straight, while the inner are shorter and distinctly curved. One of the 
larger is represented in Pl. LXIX. fig. 4. The bristle tapers much distally; and by 
careful adjustment the spinous rows on the opposite side are brought out, as at ac. 
Such a bristle, of course, is not round, but conspicuously angled, apparently broad 
posteriorly and thinned, with a curve to the edge. The ventral bristles, again, are 
rather short and fine, commencing superiorly with a series having a long tapering 
