18 
BIOLOGICAL INVESTIGATIONS. 
Thanks to Aid. Dent, we obtained the use of the “ Stanley ” for 
dredging and surface netting off Blyth in May, and again at the 
annual excursion of the Northumberland Coast Club. A paper on 
the Crustacea obtained on the latter occasion has been prepared by 
Prof. G. S. Brady, and is to be published in the next number of 
the Transactions of the Northumberland Natural History Society. As 
before, the opportunity was taken at the trawling experiments to 
obtain samples of the surface and the bottom plankton — the latter 
by attaching a small net to the beam of the trawl. The general 
nature of the results is indicated in the following table. The 
Copepoda are in many cases detailed by Prof. Brady. 
TABLE V. 
Date and Place. 
Inner Fames 
June 23. 
Apparatus, &c. 
I 
Organisms. 
Net hanging in Ova of Weever, Larval Angler 
current Copepoda: *** 
Acartia clausii 
Temora longicornis 
Barnacles: Cypris stage, cast cuticles ** 
Euthemisto compressa 
Spadella, Larval Polychset 
Sarsia, Phiallidium 
Pinnacles, Fames 
June 23. 
Net hanging in 
current 
Ovum of Gurnard 
Copepoda: *** 
Acartia clausii 
Temora lovgicornis 
Barnacles : Cast cuticles 
Pleopis polyphemoides 
Young Polychaet 
Camhois Bay 
June 24. 
Surface net 
6-15 to 7*30 p-m. 
55 c.c. 
Ova of Gurnard, Dab, Weever 
Copepoda : 
Temora longicornis 
Pseudocalanus elongatns 
Oithona spinifrons 
Centropages hamatiis 
Alteutha interrupta 
Acartia clausii 
Calanus helgolandicus 
Pleopis polyphemoides 
Euthemisto compressa ** 
Barnacles : Cypris stage, cast cuticles 
Nauplius, Zoea stages 
Veligers 
Sagitta, Tubicolous Annelid, 
Larval Polychset 
Phiallidium, Sarsia Pleurobrachia 
