92 ROYAL SOCIETY OF CANADA 



;)24. I'lNCTlKKLLA CoOI'ERI, Oai'pCK tei". 



I{c|)r Mrit . Assoc, 1S():{, )). ((."il (August, l<S(i4) ; .-uid I'roc. CM At-.ul. Sci., vol. iii., 



)). 214 (IH(io>. 



Of our throe species of PwncifMre^/a the two iirst named seem to be 

 faii-ly common and they are usually dredy^ed attached to stones or dead 

 shells in ten to thirty or more fathoms. 



P. cucuUafa occurs in two forms, whicli may ])ossil)iy prove to be 

 <.listinct — the one has few and very ])rominent ribs while in the other 

 the sculpture is closer and niuch tiner. 



P. < ooperi is the smallest and rarest of the three, and so far has only 

 been takeu in this pi'Ovince,at Departure Bay, where I ilred«i;ed it in 1888, 

 and agai^n last j^ear, in company with P . galeata. 



Dr. Pilsbry unites the last named species with the Atlantic P. noa- 

 china, Linne, sp. 



EMAEdl^^ UL A, Laiuarck . 



H2o. Emargini'LA crassa, ,T. Sowerby. 



Min. Coneli., \). 7H, j)!. xxxiii., iij)i)t'r tigures. 



The occurrence on our coasts of this rare Kur(»pcau shell was hardly 

 expected. The single specimen believed to have been taken at the 

 Queen Charlotte Islands by Dr. Dawson is thus recorded b}^ Mr. 

 AVhiteaves in the " Ottawa Naturalist," vol. vii , p. 135 : " An adult shell 

 of this species with the animal, was found in a jar containing large 

 specimens oi iSolaster Stimpsoni, Solaster Dawsoni, Cribrella hevluscula and 

 other starfishes characteristic of the British Columbian marine fauna, 

 preserved in alcohol, the contents of which, except the alcohol, wei-e 

 stated by Dr. Dawson to have been dredged by him at the Queen C-har- 

 lotte Islands in 1878." 



FISSU IMDKA, Swainson. 

 326. FissuRTDEA -vsPERA, Eschsclioltz. sp. 



F!ssi(it/I(i iispern, E.sch., Zool. Atlas, pt. ."i, p. 21, i)l. .xxiii., tig. .5 (ls:i:-{>. 

 = crafifid, (lonld. 



Common between tides from Victoria to the (Jueen Charlotte Islands. 

 A large percentage of the shells of this species are found to contain 

 besides the rightful inhabitant a parasitic annelid — Lepidonotus Lordi, 

 Baird . Dr. Newcombe states in his " Catalogue " that he has observed 

 similar worms in the shells of Puncturella citcuUata and Acmcea mitra. 



