262 



Soitthcni Cross. 



XI I. POLYCHAETA. 



By AETHUE WILLEY, D.Sc, F.Z.S. 



(Plates XLI.-XLVL) 



The collection of Polychaeta which has been handed over to nie for 

 description is small, and in some cases the state of preservation of 

 the specimens leaves something to be desired ; but there is sufficient 

 to indicate the existence of a vigorous Annelid fauna in this region 

 of the farthest south. Fifteen species have been identified, of which 

 three seem to be new. Perhaps the most interesting feature of the 

 collection is the addition of the characteristic northern Maldanid, 

 Bliodine loveni, Mgn , to the Antarctic fauna. Besides this, two 

 other genera, not hitherto recorded in the south, are represented by 

 species slightly different from their northern congeners, namely, 

 Gattyana { = Nychia) cristata, n. sp., and Malmgrcnia crassicirris, n. sp. 



The three species, Travisia herguelensis, Mclnt., Scoluplos kergue- 

 lensis, Mclnt.,^ and Thdeims antarcticus, Kbg., are hardly distin- 

 guishable from the northern types of the respective genera. 



.A. singularity of the collection, which, however, bears no apparent 

 significance, is the absence of Lycoridae and Eunicidae. There are 

 some specimens of SpirorUs which I have not identified, as the soft 

 parts are not adequately preserved. 



I have introduced, in a form more or less modified from the 

 original sources, compressed diagnoses of most of the genera dealt 

 with, in the hope that this method, while requiring little extra space, 

 will help to avoid ambiguity. 



The determined species are the following : — 



PAGE 



264 



1. TIarmothoe spinosa, Kinberg 



2. Harmotho'd crossetensis (Mcintosh) 



3. Gattyana cristata, n. sp. . 



4. Malmgrenia crassicirris, n. sp. . 



5. Fhyllodoce madeirensis, Langerhaus 



6. Vanadis antarctica (Mcintosh) 



266 

 268 

 269 

 270 

 271 



^ Remarks upon the species of Travisia and Scoloplos, and other 

 " bipolar " species and genera, are contained in a recent paper by Miss Edith M. 

 Pratt, ' Some notes on the Bipolar Theory of the Distribution of Marine 

 Organisms.' Mem. Manchester Soc, Vol. XLV., Part IV., No. 14, 1901. 



