74 



TYNE WATER SAMPLES. 



October 27th, 1911. 



BIOLOGICAL SAMPLES (taken with tow net). 



The asterisks refer to relative numbers present in eacli. 



''"'"^' very common 



common 



20 Oct., 1911. — No. 1. Copepoda:* Acartia clausi *, Anomalocera pater- 



soiii, Oitliona similis, Nauplius, and 

 other larval stages 



Girripedia . Barnacles — Cast cuticles. 



Amphipoda : Eiithemisto compressa (1) small variet}'. 



Isopoda : Idothea baltica (3) . 



Larval Gasteropods. 



Ceratium tripos *. 



Diatoms. 



Solid matter : fine sand, cinders, coal, and vegetable 



matter ***. 



No. 2. Copepoda:* Acartia clausi * Centropages haviatus*, 



Centropagcs typicus, Pseudocalanus 



clongatus, Anomalocera patersoniy 



Oithona siniilis, Nauplius. 



