MARINE BIOLOGICAL STATION AT PORT ERIN. 49 



Doris re-panda, Port Erin Bay at low water; differs 

 from Alder and Hancock's description in that it has no 

 conspicuous yellow patches ; possibly also the arrange- 

 ment of the gills is not quite normal. 



Eolis despecta, on Obelia longissima from lobster-pot 

 lines North of Port Erin Bay. 



ECHINODERMATA. 



The commonest Ophiopluteus larva found at Port 

 Erin during this period was one not yet identified with 

 its mature form, and so still referred to as Ophiopluteus 

 mancus in " Nordisehes Plankton." 



Plutei of Ophiothrix fragilis were rather less common, 

 those of Ophioglypha albida still rarer, and those of 

 Ophioglypha texturata ( = Ophiura ciliaris) were very rare. 



Echinocardium cor datum ; very common. 



Echinus esculentus ; common. 



Echinus miliar is; coniinou. 



Echinocyamus pusillus ; not common. 

 Asterid larvae taken were : — 



Asterias rubens ; 



" Brachiolaria laevis" 

 Holothurian larvae were: — 



Synapta digit ata. 

 Enteropneusta. 



Tornaria larva of Balanoglossus was fairly abundant. 



The most striking features of the summer, however, 

 were the extraordinary luxuriance of the Hydroid fauna 

 almost everywhere — Syncoryne eximia occurring in such 

 sheets on the breakwater that it seems impossible to 

 believe that it could have been overlooked there before 

 had it been as luxuriant regularly, and the large number 

 and size of the gonophores on Coryne pusilla may be noted 



