POLYNOIDAE 91 



the manner of Halosydna. All the appendages are hirsute except the palps, which are 

 covered with small papillae. There is a well-developed conical facial tubercle, and behind 

 the head a nuchal flap or gibbosity. The bristles of the tentacular segment are unusually 

 numerous and well developed. The elytra are arranged as in Harmothoe, and the pseudo- 

 elytrophores are scarcely less prominent than the elytrophores. The dorsal cirrophores 

 are set very low down on the feet and have a prominent lateral expansion. The dorsal 

 cirri are very long, the tips of the bristles only reaching to about half their length. The 

 bristles are as described for the genus. 



Remarks. I cannot agree with Augener that this species is capable of inclusion under 

 Harmothoe. The genus Eulogisca is very near to Allmmiiella, Mcintosh, from which it 

 difi"ers in the possession of unidentate instead of bidentate ventral bristles and of a 

 facial tubercle. The latter may prove to be only a specific character. 



Genus Hermadion, Kinberg 



Fifteen pairs of elytra arranged as in Harmothoe but leaving the hinder end of the 

 body uncovered. There are about 15 segments behind the last pair of elytra. The lateral 

 tentacles are inserted ventrally, but there are no prostomial peaks. The dorsal bristles 

 are numerous, stout, and either smooth or very lightly pectinated, the ventral bristles 

 are unidentate. 



Hermadion magalhaensi, Kinberg. 



Fauvel, 1916, p. 423, pi. viii, figs. lo-ii, with synonymy. 



Occurrence. St. 652 (2); WS 84 (i); WS 576 (i); WS 755 (numerous); WS 841 (2). 



Specific characters. The elytra are variably coloured with brown and white 

 markings. They are thickly covered with small tubercles. The dorsal bristles are dark 

 brown, stout, upturned, and either smooth or very lightly pectinated: the ventral are 

 unidentate and with well-developed scales. 



Genus Polynoe, Savigny 

 Body long and vermiform, with numerous segments. Fifteen pairs of elytra confined 

 to the anterior region and leaving a large number of hinder segments uncovered. The 

 lateral tentacles are inserted ventrally. The dorsal ramus is much less developed than 

 the ventral. The dorsal bristles are smooth or lightly pectinated; the ventral are frilled 

 and either unidentate or bidentate. 



Polynoe antarctica, Kinberg. 



Kinberg, 1857, p. 23, pi. x, fig. 58. 

 Fauvel, 1916, p. 426. 

 Monro, 1930, p. 53. 



Harmothoe antarctica, Bergstrom, 191 6, p. 279. 

 Occurrence. St. WS 583 (i); WS 755 (5); WS 869 (5). 



Specific characters. The elytra are usually punctuated with small dark spots, or 

 they may be bordered with brown. They are quite smooth except for a patch of minute 



