144 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Near 



Port Patches Off Carnarvon 



Erin. Buoy. Llanon. Bay. 



Biddulphia ab. ... r. ... — ... — 



Chaetoceros ab. ... — ... — ... — 



Coscinodiscus ab. ... — ... — ... — 



Rhizosolenia r. ... — ... — ... — 



Acanthometra r. ... — ... — ... — 



Ceratium tripos fr. ... fr. ... — ... — 



Ceratium fusus fr. ... — ... — ... — 



Sagitta fr. ... fr. ... — ... r. 



Tomopteris fr. ... fr. ... — ... — 



Autolytus — ... r. ... — ... r. 



Mitraria r. ... fr. ... — ... — 



Copepoda c. ... c. ... — ... ab. 



Calanus r. ... — ... — ... — 



Pseudocalanus fr. ... fr. ... — ... ab. 



Paracalanus fr. ... fr. ... — ... c. 



Temora — ... fr. ... — ... c. 



Anomalocera — ... — ... — ... — 



Centropages hamatus ... — ... r. ... — ... — 



Acartia c. ... c. ... — ... — 



Oithona fr. ... — ... — ... — 



Euterpina r. ... — ... — ... — 



Oikopleura fr. ... — ... — ... — 



Plaice eggs — ... 4 ... 4 ... — 



Post-larval Herring — ... ab. ... — ... — 



The plankton of Port Erin was very rich in Diatoms, 

 and most of the other organisms mentioned were well 

 represented. The inshore waters of the Southern area 

 possessed quite a different plankton on the following day. 

 Diatoms, with the exception of a few Biddulphia taken 

 near the Patches Buoy, were absent, both in Cardigan and 

 Carnarvon Bays. The Copepoda at the Patches Buoy 

 were about as numerous as at Port Erin, but there was a 

 slight difference in the species at the two places. 

 Carnarvon Bay, again, was distinct from any of the other 

 three, and had a very rich supply of Copepoda, but little 

 else. The collection taken off Llanon was rather 

 remarkable, as it only contained four plaice eggs. 



