318 Proceedings of the Royal Society of Victoria. 



Fig. 9. — Bytliocypris holli, Jones. (Young foi-m). a, Carapace 

 sliowing right valve; b, dorsal view. [5417]. 



,, 10. — Aparchites subovatus, Jones. a. Carapace from the 

 right side; b, ventral view; c, end view. [53911. 



,, 11. — Aechmina jonesi, sp. nov. a, Carapace from the right 

 side; b, doi-sal view. [5411]. 



Plate XV. 



(All the figures on this plate are magnified 28 diameters). 

 Fig. 1. — Xestoleberis wrighti, Jones, var. oblonga nov. a, 



Carapace from the right side ; b, dorsal view. 



[5410]. 

 ,, 2. — Primitia paucipunctata, Jones and Holl. a, Carapace 



from the left side ; b, dorsal view ; c, end view. 



[5402.] 

 ,, 3.^ — Primitia striata, Krause. a, Carapace from the right 



side ; b, ventral view ; c, end view. [5403]. 

 ,, 4.- — Primitia semicircularis, Jones and Holl. a, Carapace 



from the left side ; b, dorsal view ; c, end view. 



[5404]. 

 ,, 5. — Bythocypris phaseolus, var. elongata, Jones, a. Cara- 

 pace from the right side; b, ventral view. [5419]. 

 ,, 6. — Primitia unicornis, Ulrich sp. a, Carapace from the 



right side ; b, ventral view. [5405]. 

 ,, 1.- — ^Bythocypris caudalis, Jones, a. Carapace from the 



right side; b, dorsal view; c, end view. [5418]. 

 ,, 8. — Primitia trigonalis, Jones and Holl. a. Carapace 



from the right side ; b, ventral view ; c, end view. 



[5392]. 



Plate XVI. 



(All the figures on tliis plate are magnified 28 diameters). 



Fig. 1. — Bythocypris holli, Jones, (t?). a, Carapace from the 

 right side; b, ventral view; c, end view. [5416]. 



,, 2. — Bythocypris holli, Jones. (?). a, Carapace from the 

 right side; b, ventral view ; c, end view. [5415] 



,, 3. — Isochilina labrosa, Jones, a^ Right valve; b, end 

 view. [5390]. 



,, 4. — Oyprosina, sp. Left valve. [1219]. 



