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V. — Polychseta of the Families Serpulidae and Sabellidae, collected by the Scottish 

 National Antarctic Expedition. By Helen L. M, Pixell, B.Sc, F.Z.S., 

 Demonstrator of Zoology and Reid Fellow, Bedford College, University 

 of London. Communicated by Dr J. H. Ashworth. (With One Plate.) 



(MS. received January 22, 1913. Read February 17, 1913. Issued separately June 24, 1913.) 



For the opportunity of examining these specimens I am indebted to Dr W. S. 

 Bruce, the leader of the Scottish National Antarctic Expedition, 1902-1904. I should 

 like to take this opportunity of expressing my thanks to him, and also to Dr Marett 

 Tims for his assistance during the preparation of the paper. 



The following is a list of the ten species, of which four are new. Eight different 

 genera are represented : — 



Family Serpulidae. 



Serpula vermicularis Linnaeus, from various stations (see p. 348). 



Apomatus hroivnii n. sp.. Station 417, lat. 71° 22' S., long. 16° 34' W., 1410 fathoms. 



Salmacina dystevi (Huxley), Station 461, Gough Island, lat, 40° 20' S., long. 



9° 56' 30" W., 100 fathoms. 

 Spirorhis antarcticus n. sp.. Station 325, Scotia Bay, South Orkneys, lat. 

 60° 43' 42" S., long. 44° 38' 33" W., 10 fathoms. 

 ,, patagonicus Caullery and Mesnil, Station 478, Table Bay, Cape Town ; 



also Station 118, Port Stanley, 4 to 5 fathoms. 

 ,, falklandicus u. sp., Station 118, Port Stanley, Falkland Islands, 4 to 5 



fathoms. 



Family Sabellid.<e. 



1. Dusychone violacea (Schmarda), Station 478, Table Bay, S. Africa, shallow water. 



2. Eurato melanostigma (Schmarda), Station 24, Cape Verde Islands, shore. 



3. Potamilla antm'ctica Giayiev, Station 349, Tussock Island, Falkland Islands, shore. 



4. Potamis scotix n. sp.. Station 417, lat. 71° 22' S., long. 16° 34' W., 1410 

 fathoms. 



Family Serpulid^. 



Genus Serpula. 

 Generic characteristics : — 



1. Collar-setse of bayonet-shape, with spines at base of blade. 



2. Operculum funnel-shaped, with numerous radii ending in serrations on margin. 



3. Uncini with only a few teeth. 



TRANS. ROY. SOC. EDIN., VOL. XLIX. PART II. (NO. 5). ' 46 



