POLYCHiETA OF THE L.M.B.C. DISTRICT. 



267 



Lanice conchilegt, x 



Thelepus cincinnatus x 



Nicolea venushda x 



Ampharete grubei.... x 



Pectin, auricoma x 



Sabellaria alveolata . 

 SdbeVaria spinuhsa 



Sabella pavonia 



Basyclwne herdmani 

 Amphicora fabricia.. 



Filigrana implexa 



Serpida vermicularis 



,, reversa 



,, triqueter.... 

 Spirorbis boreahs .... 



,, lucidus... 



x L— 22 E, Ch. 



L— 22 

 20—24 



20—22 

 0—22 



L 

 10—50 

 M— 16 

 0—18 





 0—18 



20 

 0—22 

 L— 18 

 Litt. 

 10—20 



UK. 



Sh, E, Ch. 



E, WS. 

 UK. 



E, Ch. 



E, Ch. 



E,Sh,ChWi 



E, Chj'wS 



E, Ch. 



UK. 



E, Ch, Ir. 



E, Ch. 



E, Ch. 



E. 



Cattegat, Belgium, 



Med, and Madeira. 



US,Gr,Sp,NZ,SeMed 



Gr, Sc, Med. 



Gr, Sp, XZ, Sc. 



Sc, Med. 



Sc. 



Med. 



Sc. 



US, Sc. 



Gr, Sc, 

 US, Sc. 

 Sc, La Rochelle 



Sc, Med. 

 US, Gr, Sc. 

 US, Gr, XZ. 



Explanation of Plates. 



Plate XIII. 



Fig. 1. Notopodial seta of Polynoe propinqua, X 250. 

 Fig. 2. ,, ,, ,, imbricata, X 250. 



Fi^ 

 Fie 



Fi£ 



Fig, 

 Fig- 

 Fig, 

 Fig 

 Fis, 



3. ,, ,, ,, impar, X 250. 



4. ,, ,, ,, extenuata, X 250. 



5. ,, ,, ,,hali(eti,v&r.hyce?ice,X%50. 

 (These figures show the minute but constant rela- 

 tive differences in the degree of serration exhibited 

 by the bristles of the respective species.) 



6. Polynoe impar. Portion of scale showing single 

 large pear-shaped papilla, X 130. 



7. Polynoe propinqua. One of the large sub-globular 

 margin processes, X 190. 



8. Polynoe extenuata. Entire scale, X 44. 



9. Polynoe propinqua. Parapodium, X 20. 



10. Eunice harassii. Parapodium and branchia 

 from the 21st setigerous somite, X 20. 



