914 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Fig. 2. Metridia armata, Boeck. a, terminal spine of 
Fig. 
swimming feet. 0, fifth foot of male. c, fifth 
foot of female. 
. Pseudocalanus elongatus, Baird. a, Posterior 
antenna. 40, fifth pair of feet of male. 
. Pseudocalanus armatus, Boeck. a, Foot of sec- 
ond pair. 90, foot of fifth pair of male. 
. Paracalanus parvus, Claus. a, termination of 
swimming feet. 0, fifth foot of male. c¢, fifth 
foot of female. 
. Acartia clausit, Giesbrecht. a, terminal spine of 
swimming feet. 0, fifth foot of female. c, Cau- 
dal segments of Acartia discaudatus. 
. Temora longicornis, Muller. a, terminal spine of 
swimming feet. 06, caudal segments. 
. Hurytemora claus, Boeck. «a, terminal spine of 
swimming feet. 0, fifth foot of female. 
Prare XV 
. Eurytemora affinis, Poppe. a, anterior antenna 
of male. 0b, fifth foot of female. 
. Isias clavipes, Boeck. a, fifth foot of male. 6, 
fifth foot of female. 
. Centropages hamatus, Lilljeborg. Fifth foot of 
male. a, terminal spine of swimming feet. 
. Parapontella brevicornis, Lubbock. a, fifth pair 
of feet of male. 0, fifth foot of female. c, Abdo- 
men of male. 
5. Labidocera wollastoni, Lubbock. a, anterior an- 
tenna of male. 0, right foot of fifth pair of male. 
c, left foot of fifth pair of male. d, fifth pair 
of feet of female. 
. Labidocera acutum, Dana. a, fifth pair of feet of 
male. 0, fifth foot of female. c, abdomen and 
