44, 
Fig. 
13. 5 
14 
15 
16. Abdomen. 
17 
. Anterior antenna. 
- Basal joint of endopodite of second foot. 
. Fifth foot (imperfect). 
x 40. 
. Spines of last abdominal segment. 
AUSTRALIAN ANTARCTIC EXPEDITION. 
Metridia trispinosa. 8 
x 40. : 
proximal joints. x 100. 
x 103 
x 65. 
xX 84. 
Puatre XY. 
Microchelonia glacialis. 
- Male (?), seen dorsally. > 150. 
9? 29 
1 
2 
3. Abdomen and furca. 
4. Anterior antenna. 
5. Posterior antenna. 
6 
- Maxilliped. 
Acartia. 
Atideus. 
Amphiascus. 
Boeckella. 
Calanus. 
Clausocalanus. 
Dactylopusia. 
Diarthropus. 
Euchetopsis. 
Huchirella. 
Gatanus. 
Gaidius. 
Haloptilus. 
Harpacticus. 
Heterorhabdus. 
Idya. 
Laophontodes. 
Longipedia. 
Machairopus. 
laterally. x 150. 
xX 240. 
xX 240. 
xX 240. 
xX 240. 
INDEX OF GENERA. 
Mawsonella. 
Metridia. 
Microchelonia. 
Microsetella. 
Oithona. 
Oncea. 
Paracalanus. 
Paraeucheeta. 
Plagiopus. 
Pleuromamma. 
Pseudoothrin. 
Racovitzanus. 
Rhincalanus. 
Scolecithrizx. 
Spinocalanus. 
Stephos. 
Streptocalanus. 
Stenhelia. 
Tisbe, 
