BIGELOW: MEDUSAE FROM THE MALDIVE ISLANDS. 269 
PLATE 6. 
» Fig. 21. Nausithoe punctata. 
Fig. 22. Aurelia maldivensis, radial canals, showing one octant of subumbrella. 
Fig. 23. a ff marginal sense organ. 
PLATE 7. 
Fig. 24. Porpita lutkeana. 
Fig. 25. mh < vertical section of disk; s, central stigmata; cav., cen- 
tral chamber; c., circular partition; R., white tubules; H/., brown he- 
patic tubules. ‘ 
Fig. 26. Porpita lutkeana, reproductive polypite with budding Medusae. 
= 
ha 
fl 2. PLATE & 
i. Fig. 27. Aurelia maldivensis. 
t Fig. 28. Bolina ovalis. 
5% Fig. 29. Ocyroe pteroessa. 
i Fig. 30. Cestus pectenalis. 
| PLATE 9. 
% 
Chart of the Maldive Archipelago, showing the track of the “ Amra.” 
Reduced from Admiralty Charts 66a, 666, 66c; Sheets 1-8; Seale, 3.5 ” = sixty 
miles corrected to May, 1903. Northern, Central, and Southern Maldives. 
