MARINE BIOLOGICAL STATION ON PUFFIN ISLAND. 29 



Mr. Thompson has found several of the rarer forms, e.y., 

 Euterpe y vac ills, Pontella u-oU<(.<t<)ni , and Pfirapo/ifella brevJ- 

 coriiis. 



Mr. A. Chopin, of Manchester, spent a week at the end 

 of August in collecting Invertebrata round the southern 

 end of the Isle of Man, and was singularly successful in 

 some groups. He has kindly submitted all his lists, and 

 some of the specimens, to me, and I note that he ob- 

 tained : — 



Sponges, eight species. 



Hydroida, twenty-seven species, including Sijncoryne 

 ea-imia (dredged off Spanish Head), and Lafoea fruticosd 

 (on Sertularia ahietina), not previously found in our district. 

 Some members of the Manchester Microscopical Society 

 also obtained in June, CorymorpJia nutans, (near Shagg 

 Rock, 12 fathoms), and Coryne pusilla (Flesh wick Bay), 

 both rare species. 



AcTiNiARiA, eighteen species and recognised varieties, 

 including Sagartia nivea and its variety imni'imlata, not 

 previously recorded. 



EcHiNODERMATA, eight species. 



PoLYCHiETA, five spccies. 



KoTiFERA, Synclid'ta haltica, Ehr., not previously recor- 

 ded. 



Arachnida, Halacarus rliodosticpna, Gosse (always on 

 BowerlanJda imhricata) , not previously recorded. 



PoLYZOA, twenty species. 



Crustacea, tw^eiity species, including Porfunus corrucia- 

 tus, not previously recorded. 



MoLLrscA. thirteen species, including Chiton discrepans, 

 new to the district. 



Mr. Chopin collected at Hilbre Island, in September, 

 the following Sea-Anemones: — Sagartiii v id uat a, xmrieiies 



