120 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



Fig. 2. Metridia armata, Boeck. a, terminal spine of 

 swimming feet, b, fifth foot of male, c, fifth 

 foot of female. 



Fig. 3. Pseitdocalanus elongatus, Baird. a, Posterior 

 antenna, h, fifth pair of feet of male. 



Fig. 4. Pseudocalanus armatics, Boeck. a, Foot of sec- 

 ond pair, b, foot of fifth pair of male. 



Fig. 5. Paracalanus parvus, Glaus, a, termination of 

 swimming feet, b, fifth foot of male, c, fifth 

 foot of female. 



Fig. 6. Acartia clausii, Giesbrecht. a, terminal spine Of 

 swimming feet, b, fifth foot of female, c, Cau- 

 dal segments of Acartia discaudatus. 



Fig. 7. Temora longicornis, Miiller. a, terminal spine of 

 swimming feet, b, caudal segments. 



Fig. 8. E'lirytemora clausii, Boeck. a, terminal spine of 

 swimming feet, b, fifth foot of female. 



Plate XVI. 



Fig. 1. Eury temora affinis, Poppe. a, anterior antenna 

 of male, b, fifth foot of female. 



Fig. 2. Isias clavipes, Boeck. a, fifth foot of male, b, 

 fifth foot of female. 



Fig. 3. Centropages liamatus, Lilljeborg. Fifth foot of 

 male, a, terminal spine of swimming feet. 



Fig. 4. Parapontella brevicornis, Lubbock, a, fifth pair 

 of feet of male, b, fifth foot of female, c. Abdo- 

 men of male. 



Fig. 5. Labidocera loollastoni, Lubbock, a, anterior an- 

 tenna of male, b, right foot of fifth pair of male. 

 c, left foot of fifth pair of male, d, fifth pair 

 of feet of female. 



Fig. 0. Labidocera acutum, Dana, a, fifth pair of feet of 

 male, b, fifth foot of female, c, abdomen and 



