1906.] OF THE NEW ZEALAND LAKES. 701 



(Irierl Australian sand, and I am much indebted to him for having 

 kindly sent me specimens for the jjurpose of comparison. I have 

 pleasure in naming the species in honour of Professor Sars. 



EXPLANATION OP THE PLATES. 



Plate XLVIII. 



CeriodapJinia glohosa, p. 695. 



Fig. 1. Female seen ventrally. X 84. 



2. Female seen ft'om rig:ht side. X 84. 



3. Extremity of post-abdomen. X 240. 



Jjosmina meridionalis, p. 695. 



4. Female seen from right side. X 90. 



5. Post-abdomen. X 240. 



Netonliamia fenestrata, p. 698. 



6. Maxillar lobes. X 240. 



7. Caudal rami with egg-masses and spermatic bundles. X 84. 



8. Ejaculatory duct of male. X 100. 



9. External copulatory organ of male. X 240. 



Plate XLIX. 

 Calamcecia lucasi, p. 696. 



Fig. 1. Female seen from right side. X 84. 



2. Do. dorsally. X 81. 



3. Anterior antenna of male, distal portion. X 240. 



4. Posterior antenna. X 300. 



5. Anterior foot-jaw. X 240. 



6. Posterior foot-jaw. X 240. 



7. One of the swimming-feet. X 240. 



8. Foot of fifth pair of female. X 240. 



9. Fifth pair of feet of male. X 240. 

 10. Furca. X 240. 



Plate L. 

 Neionhamia fenestrata, p. 698. 



Fig. 1. Outline of shell of male — from left side. X 85. 



2. Do. do. from above. X 85. 



3. Shell of female seen from below. X 84. 



4. Posterior antenna of male. X 84. 



5. Apical joint of posterior antenna; female. X 240. 



6. Mandible and palp. X 240. 



7. Second foot-jaw of female. X 240. 



8, 9. Do. male, right and left. X 240. 



10. Foot of first pair. X 200. 



11. Do. second pair. X 200. 



12. Caudal ramus. X 200. 



13. Eye. X 140. 



Plate LL 

 Cyprinotus sarsi, p. 700. 



Fig. 1. Outline of shell of female, from left side. X 40. 



2. Do. do. from above. X 40. 



3. Do. of male, from left side. X 40. 



4. Posterior antenna. X 84. 



5. Mandible and palp. X 84. 



6. Second maxilla of right side (male). X 200. 



7. Do. prehensile portion, left side. X 200. 



8. Foot of first pair. X 84. 



9. Last joint of second foot. X 84. 



10. Caudal ramus. X 84. 



11. External copulatory organs. X 84. 



