348 DE. BAIRD ON SEVERAL GENERA OF EUNICEA. 



cular cirri short, a little longer than the transverse diameter of 

 the buccal segment. Dorsal cirri rather long. Ventral cirri 

 short and conical. Branchiae commencing about the third seg- 

 ment ; pectinations filiform. 



Feet: — Simple setae long, lanceolate, acutely pointed, and finely 

 toothed or serrated on the inner edge or margin for a part of 

 their length. Pectinate setse small, apparently few in number, 

 and with few pectinations or teeth. Compound setse short, about 

 half the length of the others ; falciform appendage with a sharp 

 tooth just beneath the apex, and a blunter one nearer the lower 

 portion. Aciculse or spines two, slightly curved, dark-coloured 

 and blunt-pointed. Unciui or booklets several in number, but 

 varying from two to five, curved and tridentate at the apex, lying 

 across the aciculse. 



Hah. Corunna, H. Woodward. 



Sp. 12. Eunice Antarctica, Baird. 



?=Eunice havaica, Kinberg, Fregatt. Eugen. Resa, tab. 15. figs. 14 b-g. 



Body slender, of a dark aeneous colour, and consisting of from 

 115 to 120 segments. Buccal segment scarcely equal to the two 

 succeeding ones. Head with two lobes. Tentacle, antennae, and 

 palpi articulated. Tentacle longer than antennae. Tentacular 

 cirri longer than the transverse diameter of tlie buccal segment, 

 and articulated. The lobe or segment from which they spring is 

 of about the same breadth as the succeeding segment. Branchiae 

 small, commencing about the eighth pair of feet, and terminating 

 about the thirty-eighth segment. Anal cirri of considerable length, 

 indistinctly articulated. Dorsal cirri slender. Ventral cirri stout, 

 conical, not so long as the dorsal, but much stronger. 



Feet rather small. Simple setae long, flagelliform and sharp- 

 pointed. Pectinate setae few in number, rather small, with the 

 outer tooth longer and stronger than the others. Compound 

 setae short ; falciform appendage small, with a small sharp tooth 

 a little below the apex. Spines or aciculae two, slightly curved 

 and obtusely pointed. Uncini or booklets two, curved, and forci- 

 pate at apex. 



Hah. Antarctic Seas, Antarctic Expedition. 



Sp. 13. Eunice plicata, Baird. 



Body cylindrical, tapering towards the inferior extremity, from 

 2 to 3 inches long, and consisting of about 130 short or nar- 

 row articulations. Buccal segment nearly equal to the four suc- 

 ceeding articulations, with the venti*al margin prominent, stand- 



