HARMOTHOE ANTILOPIS. 335 



Its range is thus extensive, but the numbers hitherto have been few, generally a single 

 example at each station. 



Length from three quarters to nearly an inch. 



Head (Plate XXVIII, fig. 13) somewhat broad behind, with the anterior angles 

 ending in very short peaks. Two comparatively large and somewhat widely separated 

 eyes occur near the posterior border. The larger anterior pair are not visible from the 

 dorsum, being situated laterally and below the truncated angles of the snout. In most 

 specimens in spirit the pigment of the eyes has become very faint. The median tentacle 

 is moderately long, slightly enlarged below the filiform extremity, and covered with 

 numerous cilia with very slightly enlarged tips. The lateral tentacles are inferior, have a 

 slight enlargement below the tip, and are also supplied with clavate cilia. The tentacular 

 cirri are similar to the median tentacle, the cilia being continued about a third up the 

 filiform termination. The palpi are of moderate length, with rows of minute clavate 

 papillae, which toward the termination are dilated and then constricted below the slightly 

 granular tip. 



The body is moderately elongated, of considerable breadth, not much tapered 

 anteriorly and only a little more so posteriorly, and with the usual markings dorsally 

 and ventrally. Bristled segments from thirty-three to thirty-five. The segmental 

 papillae do not appear to be produced as tubular processes, only the projecting " boss " 

 or elevation indicating this structure. 



The scales (Plate XXXII, fig. 16) amount to fifteen pairs, and entirely cover the 

 dorsum. The first pair are more or less rounded, the rest reniform, the outer lobe being 

 larger than the inner. They are fringed on the outer and posterior borders as well as 

 studded over the surface with cilia, which become very long on the former border, and 

 the tips are slightly bulbous. They are often coated with a granular parasitic growth. 

 The horny papillae or tubercles on the surface are large and boldly marked, the dilated 

 tips forming blunt processes or spines truncated at the tip, which is hispid with sharp 

 processes, and in favourable specimens they resemble a rosette of spikes. The appear- 

 ance is thus characteristic. A pale brownish coloration occurs on the dorsal surface 

 where the scales overlap, but otherwise they are pale with the exception of the minute 

 brownish spines. The under surface is smooth and iridescent. 



Feet. — The first foot has a few short bristles of the normal dorsal type, and very 

 slightly curved. The second foot has a considerable tuft of short dorsal bristles, only 

 the inner being curved, those next the spine being more or less straight, with the well- 

 marked spinous rows from which the name of the species is derived. The ventral series 

 of slender bristles has long spinous regions superiorly and shorter inferiorly. All have 

 simple tapering tips. These bristles are proportionally shorter and stouter than the 

 typical series. The bristles gradually elongate and the ventral series become bifid, so 

 that in the typical foot (Plate XXIX, fig. 14) the dorsal division carries a conspicuously 

 long and strong series, the inner bristles being shorter and more curved as well as more 

 abruptly pointed at the tip, which has a short smooth portion; while the outer and 

 inferior series are long, very gently tapered, and slightly curved, with a short, conical, 

 bare portion terminally. All are distinctly marked by transverse spinous rows at rather 

 wide intervals, whence the name of the species, from the resemblance of these organs to 



44 



