48 



EXPLANATION OF PLATES. 



PLATE III. 



Fig. 1. 



2 



3, 

 4, 



Biforine, from Pistia stratiotes, discharging 

 its raphides. 



Conochilus vol vox, Ehr., without the case. 

 Enterprise. 



Aporea ambigua, B. See p. 42. 



5. Peridinium carolinianum, B. Graham- 



* ville, S. Ca. 



7. Philodina pannosa, B. No. 6, by the ca- 

 mera ; No. '7, by the eye. 



10. Melicerta nuda, B. See p. 41. Enter- 

 prise. 



Cothurnia maritima, Ehr. Tampa. 



Notommata longiseta, Ehr. Enterprise. 



Portion of arm of Stephanoceros Eichhornii ? 

 from Enterprise ; shovping lateral, not ver- 

 ticillate cilia. In other respects the Ameri- 

 can specimens agree with Ehrenberg's 

 figures. 



Fig. 9, 14. Kolifer vestitu^, B. Enterprise. See 

 p. 41, fig. 9, extended, and drawn by the 

 eye; fig. 14, contracted, and drawn by 

 the camera lucida. 



15. Cothui-nia maritima ? Ehr. 'J'ampa. 



16. Acineta Lyngbyii ? Ehr. St. Augustine. 



17. Brachionus urceolaris, Ehr. St. Augustine. 



18. Cothurnia havniensis, Ehr. Tampa. 



19. Pterodina magna, 0. Anastasia Island, Fa. 



This is drawn to the scale of fig. 25. 



20. 21. Brachionus polyacanthus, Ehr. Enter- 



prise, Fa. 



22. Acineta mystacina. Pilatka. 



23. Cothurnia imberbis, Ehr. Pilatka. 



24. Scale A, for figs. 1, 3, 4, 5, 11, 12, 17, and 



21, being y/^^ths of an inch, magnified 

 equally with these figures. 



25. Scale B, for figs. 2, 6, 7, 8, 9, 10, 14, 15, 



16, 19, and 23, being TAjyths of an inch, 

 magnified equally with the drawings. 



