•296 



CEYLON PEARL OYSTER REPORT. 



Fig. 17. Pontellopsis Iwrdmam, n. sp., female, 5th pair of natatory legs, x 106. 



,, 18. Metacalanus awmllii, Cleve, female, 5th pair of natatory legs. x 552. 

 „ 19. ,, ,, ,, abdomen and furca. x 552. 



,, 20. ,, ,, male, 5th pair of natatory legs, x 159. 



,, 21. Psevdodiaptomus saUrms, Giesbr., female, 5th. natatory leg. x 159. 

 ,, 22. ,, „ male, 5th pair of natatory legs. x 159. 



,, 23. „ ,, „ abdomen and furca. x 159. 



,, 24. Psevdodiaptomus unrivillii, Cleve, female, 5th natatory leg. x 159. 

 ,, 25. „ „ male, 5th pair of natatory legs. x 159. 



,, 26. ,, „ ,, abdomen and furca. x 159. 



PLATE III. 



Fig. 



1. 



11 



2. 



11 



3. 



11 



4. 



J) 



5. 



11 



6. 



11 



7. 



11 



8. 



11 



9. 



i) 



10. 



n 



11. 



n 



12. 



n 



13. 



jj 



14. 



n 



15. 



)) 



16. 



U 



17. 



11 



18. 



)i 



19. 



n 



20. 



n 



21. 



j) 



22. 



ii 



23. 



11 



24. 



11 



25. 



11 



26. 



11 



27. 



Simwiisles inopiiiata, n. sp., female, from left side, x 80. 



,, ,, ,, anterior antenna. x 156. 



,, „ ,, 1st natatory leg. x 90. 



„ 2nd „ x 120. 



„ 4th „ x 120. 



„ ,, ,, last abdominal segment and furca. x 60. 



,, „ male, apical joints of anterior antenna. x 195. 



,, ,, female, 5th natatory leg. x 390. 



Sunaristes longipes, n. sp., female, from left side, x 80. 



,, ,, „ 4th natatory leg. x 120. 



,, „ „ last abdominal segments and furca. x 60. 



Swruiristes curticuicdata, n. sp., female, from left side, x i>0. 



,, ,, ,, anterior antenna. x 111. 



,, ,, ,, 2nd natatory leg. x 120. 



„ „ „ 3rd „ x 120. 



„ „ „ 4th „ x 120. 



,, ,, ,, last abdominal segments and furca. x 90. 



Hersiliodes dubia, n. sp., male, from above, x 45. 



,, anterior antenna. x 90. 

 „ posterior antenna. x 180. 

 „ mandible. x 260. 



maxilla. 



260. 



1st maxilliped. x 260. 

 2nd „ x 90 



1st natatory leg. x 120. 

 4th „ x 120. 



5th „ x 180. 



PLATE IV. 



Fig. 1. Tegastes imthurni, n. sp., female, from right side, x 106. 



,, 2. „ ,, another female, fiom left side. x 159. 



,, 3. „ ,, female, anterior antenna. x 195. 



,, 4. ,, ,, ,, 2nd maxilliped. x 195. 



,, 5. ,, „ ,, 1st natatory leg. x 136. 



„ 6. „ „ „ 2nd „ x 90. 



