POLYNOIDAE 51 



of a milky colour, smooth except for a large patch of small tubercles near the scar 

 of attachment. In a fragment of an anterior scale part of the edge had a few minute 

 papillae projecting over it. 



The feet are biramous and the dorsal cirri reach to the tips of the ventral bristles. 

 The bristles are few in number: the dorsal (Fig. 12, a) are pointed and with smooth 

 tips; the shaft is so lightly pectinated as to appear almost smooth. The ventral bristles 

 (Fig. 12, b) are longer than the dorsal and almost of the same thickness. They are 

 expanded towards the tip, which is smooth and slightly curved: the expanded part is 

 traversed by very delicate pectinae which are often visible in profile on both sides of 

 the blade, and not on one only as in Mcintosh's figure (PI. viii A, fig. 11). The ventral 

 cirri reach about one-half the way down the ventral bristles. 



Remarks. I have examined Mcintosh's type obtained at a depth of 245 fathoms in 

 the Straits of Magellan, and I believe this Antarctic specimen to be conspecific with it. 



Genus Eucrantha, Malmgren 



Eucrantha mollis (Mcintosh). 



Eupolyno'e mollis, Mcintosh, 1879, p. 259, pi. xv, figs. 5-9. 

 Eucrantha mollis, Bergstrom, 1916, p. 294. 



St. 159. 21. i. 27. 53° 52' 30" S, 36° 08' 00" W. 160 m. Gear DLH. Bottom: rock. One 

 specimen. 



St. 170. 23. ii. 27. Off Cape Bowles, Clarence Island. 61° 25' 30" S, 53° 46' 00" W. 342 m. 

 Gear DLH. Bottom: rock. Two specimens. 



St. 181. 12. iii. 27. SchoUaert Channel, Palmer Archipelago. 6^° 20' 00" S, 63° 01' 00" W. 

 160-335 m. Gear OTL. Bottom: mud. Four specimens. 



St. WS 97. 18. iv. 27. 49° 00' 30" S, 61° 58' 00" W. From 49° 00' 00" S, 62° 00' 00" W to 

 49° 01' 00" S, 61° 56' 00" W. 146-145 m. GearOTC. Bottom: sand, gravel, stones. One specimen. 



Remarks. Both Mcintosh and Bergstrom give good accounts of this species, which 

 is easily distinguishable by the long slender upper and lower ventral bristles with their 

 minutely bifid tips. Bergstrom 's figure (Text-fig. 2, setae furcatae Typus F) of the 

 upper ventral bristles is a little misleading, because the rows of scales are not continued 

 to the apex, and the curve is more pronounced than that of any I have seen either in 

 these specimens or in Mcintosh's type. 



Genus Polyeunoa, Mcintosh 

 Polyeunoa laevis, Mcintosh. 



Mcintosh, 1885, pi. xii, fig. 2; pi. xx, fig. 8; pi. vii A, figs. 12-13. 

 Enipo rhombigera, Ehlers, 1908, pp. 47-49, pk iv, figs. 1-12. 

 Polyeunoa laevis, Bergstrom, 1916, pp. 288-291, pi. iii, fig. 7. 



St. 39. 25. iii. 26. East Cumberland Bay, South Georgia. From 8 cables S 81° W of Merton 

 Rock to 1-3 miles N 7° E of Macmahon Rock. 179-235 m. Gear OTL. Bottom: grey mud. 



Twelve specimens. 



7-2 



