2 Pratt, PolycJusta from the Falkland Islands. 



Syllid^. 



Autolytus simplex. Ehlers (:00). 



Taken in tow-net at the surface and at a depth of 

 3 1 fathoms, also common on fronds of Macrocystis from 

 2 fathoms. 



Distribution. — Sts. of Magellan. New to Falkland 

 Islands. 



Gemcs. 1 1 species have been taken in temperate and 

 cold waters of the northern and southern hemisphere, and 

 one doubtful species has been taken in the Red Sea, so 

 that the genus is almost exclusively extra-tropical. The 

 occurrence of a doubtful species of this otherwise extra- 

 tropical genus in the Red Sea leads one to believe that 

 it is an escape from the Mediterranean, where the genus 

 is well represented. Keller and Brandt have shown that 

 many Mediterranean forms have increased their range of 

 distribution in that direction since the formation of the 

 Suez Canal. 



NEREIDiE. 



Platynereis magalhcsnsis. Kinberg ('65). 



= Platynereis antarctica. Kinberg ('65), p. 177. 

 = „ patagonica. „ „ „ 



= Nereis antarctica. Verrill ('76). 

 = „ eatoni. M'Intosh ('76), p. 320. 

 = „ magaUtcEnsis. Ehlers ('96), p. G^. 

 Two specimens found living in a hollow root of 

 Macrocystis from 3^ fathoms, and two, with egg masses 

 containing developing embryos, within folded fronds of 

 Macrocystis from 2 fathoms in Stanley Harbour. 



Distribution. — Sts. Magellan, Kerguelen, Falkland 

 Islands, Fernando Noronha, Marion Island. 

 The genus is cosmopolitan. 



