194 DISCOVERY REPORTS 



Sub-family POLYCIRRINAE, Malmgren 



Genus Polycirrus, Grube 



Polycirrus kerguelensis (Mcintosh). 



Hessle, 1917, p. 221. 



Ereutho kerguelensis, Mcintosh, 1885, p. 474, pi. xxviii A, figs. 20-21. 



Polycirrus kerguelensis, Gravier, 191 1, p. 141, pi. xi, fig. 136. 



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. One 

 specimen. 



St. 42. I. iv. 26. Off mouth of Cumberland Bay, South Georgia. From 6-3 miles N 89° E of 

 Jason Light to 4 miles N 39° E of Jason Light. 120-204 m. Gear OTL. Bottom: mud. Two 

 specimens. 



St. 45. 6. iv. 26. 2-7 miles S 85° E of Jason Light, South Georgia. 238-270 m. Gear OTL. 

 Bottom: grey mud. Four specimens. 



St. 144. 5. i. 27. Off mouth of Stromness Harbour, South Georgia. From 54° 04' S, 36° 27' W 

 to 53° 58' S, 36° 26' W. 155-178 m. Gear NCS-T. Bottom: green mud and sand. One specimen. 



St. 148. 9. i. 27. Off Cape Saunders', South Georgia. From 54° 03' S, 36° 39' W to 54° 05' S, 

 36° 36' 30" W. 132-148 m. Gear OTL. Bottom: grey mud and stones. One specimen. 



Remarks. All these examples have 11 notopods and the neuropods begin behind the 

 last notopod. The dorsal bristles are winged. In the present collection there are several 

 ripe males With very large nephridial papillae on the 4th, 5th and 6th chaetigers. 



Polycirrus hamiltoni, Benham. 



Benham, 1921, p. 94, pi. ix, figs. 101-106. 



St. 51. 4. V. 26. Off Eddystone Rock, East Falkland Island. From 7 miles N 50° E to 7-6 miles 

 N 63° E of Eddystone Rock. 105-115 m. Gear OTL. Bottom : fine sand. Four specimens. 



St. 52. 5. V. 26. Port William, East Falkland Island. 7-4 cables N 17° E of Navy Point. 17 m- 

 Gear LH. Three specimens. 



Remarks. All specimens are in poor condition. They agree in the main with Benham 's 

 account. The average size is 20 mm. by 2 mm. There are between 30 and 40 notopods. 

 The neuropods begin at about the 13th chaetiger. Benham gives 13 pairs of gland 

 shields: my specimens show only 11 clearly defined pairs. Benham states that there is 

 a small nephridial papilla below each of the first eight notopods. These I do not see, 

 but as far as can be gathered from dissection of this inadequate material there are six 

 pairs of nephridia of equal size occupying the first six chaetigers. If, as I suspect, the 

 ist notopod occurs on the 3rd segment, this arrangement of the nephridia would corre- 

 spond to that found in all the other species of Polycirrus with more than three pairs of 

 nephridia. It is, however, impossible to determine externally the limits of the first 

 three segments. 



