MARINE BIOLOGICAL STATION AT PORT ERIN. 121 
in the tow-nettings in 1899, with the times at which they 
occurred. | 
Diatoms, throughout the year. 
Ceratiwm tripos, C. fusus, and C. furca throughout 
the year. 
Tintinnus, September to December. 
Codonella, November. 
Dictyocysta, December. 
Radiolarians, October to March. 
Actinula larva of Tubilaria, June. 
Phialidium temporarium, January and May to August. 
P. cymbaloidewm, May, June, and July. 
Hybocodon prolifer, January. 
Sarsia tubulosa, May to August. 
Obelia, February to November. 
Corymorpha. nutans, June and July. 
Mitrocomella polydiadema, June and July. 
Margelis bella, May to July. 
Tiara pileata, July, August, and December. 
Saphena mirabilis, April. 
Euchilota pilosella, June to August. 
Laodice calcarata, May. 
Melicertidium octocostatum, August. 
Aurelia aurita, June to August. 
Pelagia perla, October. 
Pilema octopus, March, May, and October. 
Cyanea, July and August. 
Agalmopsis elegans, May to August. 
Hormiphora, March to November. 
Pleurobrachia, June to October. 
Beroe ovata, July and August. 
Arachnactis bournet, May and June. 
Gastrulating blastospheres, probably oe, 
November to March and June. 
