368 ANTINOE EINMARCHICA. 



Several specimens occur along with Uvarne Johnstoni in Norwegian collections 

 (1870) by Dr. Merle Norman. Whether any relationship of an epitocous kind exists 

 with this or other forms is unknown. 



Mobius records it under the name of Polynoe cirrata on the authority of Theel, who 

 gives P. cirrata as a synonym of the species, but the latter has since seen that there 

 are no grounds for this arrangement. 



2. Antinoe finmarohica, Malmgren, 1867; an. var. A. Sarsi. 



Specific Characters. — Head as in Antinoe Sarsi, and the body has a similar outline, 

 with thirty segments in the largest example (less than -| inch in spirit). Scales with 

 short and sparse cilia on the outer a,nd posterior borders, and the minute spinous 

 papillae are chiefly distributed on the anterior half of the scale as well as externally and 

 internally. Feet similar to the foregoing in general structure, but the dorsal bristles 

 have slightly narrower intervals between the rows than in Antinoe Sarsi, and they are 

 longer, less curved, and more acutely tapered at the tip. The ventral bristles are 

 decidedly stouter; the tips, instead of being capillary, have a long delicate portion of 

 appreciable breadth, with a slightly curved point. 



Synonyms. 



1865. Antinoe finmarchica, Malmgren. Ann. Poly., p. 13. 



1876. „ „ Mcintosh. Trans. Z. S., ix, pp. 387 and 400, pi. lxxii, f. 1, 2. 



Habitat. — Dredged off the west coast of Ireland (Donegal) during the ' Porcupine ' 

 Expedition of 1869 in 20 to 420 fathoms ; and also by the Expedition of the Royal 

 Irish Academy in 1886 at 93 fathoms. 



Head differs from that of A. Sarsi in that the eyes are proportionally larger, and 

 the anterior pair are more lateral in position. The other organs present no feature of 

 moment in the preparations, 



Body of similar outline to the foregoing species, and of thirty segments, but, as the 

 largest specimen is under \ inch in spirit, it may be immature. 



Scales (Plate XXXIII, fig. 8) show a definite structure in contrast with A. Sarsi, 

 but changes may occur in course of growth. They have a similar outline, but the cilia 

 on the outer and posterior borders are short and sparse, and the minute spinous papillge 

 are chiefly distributed in the anterior region in front of and on each side of the scar for 

 the pedicle. The rest of the area posteriorly seems to have less distinct papilla, but 

 towards the posterior margin the cilia appear on the surface. Some of the papillae have 

 the summits curiously truncated. Small Norwegian examples of A. Sarsi show the 

 same arrangement of the horny papillae, so that the question is still open. 



Feet. — The general structure of the fleshy part of the foot (Plate XXX, fig. 13) is 

 the same as in the previous species. The dorsal bristles are long, translucent, sharply 

 tapered from the commencement of the spinous portion to the tip, and with slightly 

 narrower intervals between the spinous rows than in the former (Plate XL, fig. 9), the 



