1 6 Pratt, PolycJiccta from the Falkland Islands. 



Several specimens embedded in a sponge encrusting 

 a stone. 



The species is cosmopolitan. 



The collection includes four genera, which are 

 restricted in their distribution to north and south extra- 

 tropical waters : — Eteone, Polydora, Provienia, Bispira. 

 There are seven cosmopolitan genera : — Platynereis, 

 Goniada, A renicola, Snbellaria, Thclepus, Sabella, Spirorbis. 



Autclytus has only once been taken in the tropics, viz., 

 in the Red Sea (probably an escape from the Mediterranean), 

 and, therefore, is almost exclusively extra-tropical. 



There are four extra-tropical species : Goniada nor- 

 vegica, Polydora polybranchia^ Arenicola claparedii, Bispira 

 maricB. 



Only one species in the collection {^Spirorbis borealis^ 

 is cosmopolitan. 



BIBLIOGRAPHY. 



'55. KiNBERG. " Nya slagten och arter af Annelider." Ofvrs. 

 K. Vetensk. Akad. Porh., Arg. 12. 



'59. ScHMARDA. " Neue Wirbellose Thiere." I. 



01. ,, }) ,, J, -ii- 



'65. KiNBERG. "Annulata nova." Ofvers. K. Vetensk. Akad. 

 Fork., Arg. 22. 



'76. Verrill. "Annelids and Echinoderms of Kerguelen 

 Island." Bull. U.S. Nat. Mtis., Vol. 1, No. 3, 

 p. 66. 



'76. iM'Intosh. "Descriptions of some new species of 

 Annelida from Kerguelen's Island." Ann. and 

 Mag. Nat. Hist., Ser. 4, Vol. XVII. 



