72 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY*. 



Net used T. II. Hensen. Nansen. Weight. Shear. 



Depth in fathoms ( > 



Catch in c. cm 23*5 17"5 5*5 9'5 17'5 275 



Biddulphia mobiliensis 750 2,250 500 250 2.500 1,000 



Chsetoceros contortum — 250 36,000 63,000 500 250 



debile — — 2,000 — — 



decipiens — 2,500 4,000 



sociale — 1,500 2,000 — 



Coscinodiscus concinnus 1,750 2,750 200 250 1,000 200 



Ditylium brightwellii — — 500 — — — 



Eucampia zodiacus — — 1,000 



Lauderia borealis — 5,000 14,000 



Rhizosolenia shrubsolei ... 250 250 2,000 2,000 



Thalassiosira gravida — — 500 1,000 



nordenskioldii 2,000 4,500 05,000 134,000 



Rhizosolenia stolterfohti ... — 1,000 2,000 



Leptocylindricus danicus ... — — 4,000 3.000 



Ceratium furca — 1,000 500 



fusus 250 250 500 



tripos 500 750 — 



Peridinhmi — 2,250 500 6,000 



Acanthometra — — — 100 



Medusoid gonophores 200 250 10 120 



Plutei of Echinoderms 200 200 



Sagitta bipunctata 12 — - 1 6 



Autolytus prolifer — — — — 



Larval Polychseta 60 50 — 20 



Mitraria' 400 250 — 



Crab zoea 20 — — — 



Mysis stage of Crangon ... 2 — 2 10 



First stage Nephrops — — — 4 



Podon intermedium 150 150 — — 



Evadne nordmanni 100 100 — — 



Calanus helgolandicus 1,600 600 10 120 



Pseudocalanus elongatus . . . 200 1 50 100 770 



Temora longicornis 300 200 30 1 50 



Centropages hamatus 100 100 — — 



Anomalocera pattersoni . . . 500 400 5 — 



Acartia clausi 2,600 2,400 40 125 



Oithona similis 400 300 5 50 



Copepod nauplii 250 4,500 4,000 



Juv 2,000 3,000 100 18,000 



Barnacle nauplii 30 25 10 75 



,, cypris stage 2 — 1 — 



Oikopleurasp 3,300 2,750 140 500 



Fish eggs, Rockling 6 1 — — 



Common Dragonet 10 2 — — 



Topknot 1 3 — 



Bib 9 8 1 I 



Whiting 13 12 — 



Cod 8 1 — — 



Green Cod 1 3 — 2 



Haddock 14 — 



Gurnard — I — — 



Dab — 5 — — 



Sprat — I — — 



Spotted dragonet — — — — 



Young fishes, Gadoid — — 1 1 



„ Clupeoids — — — — 



.-)( II 1 



500 



8,500 



500 



250 



— 



1,500 







1,000 



— 



750 



— 



50 



— 



300 



1,800 



27 



123 



— 



1 



20 



250 



500 



— 



8 



16 



37 



72 



4 



11 



150 



50 



1,200 



850 



1,600 



500 



2,300 



750 



— 



50 



1,600 



50 



150 



— 



7,000 



250 



4,000 



150 



75 



650 



— 



6 



3,300 



750 



— 



9 



4 



7 



2 



5 



11 



3 



— 



1 



2 



4 



2 



— 



__ 



2 



— 



1 



2 



10 



— 



10 



