Plate 50. 



Figs. 1 and 2. Young Liriope, probably L. catharinensis. Figure I, side view, 



figure 2, oral view. San Salvador Island, Bahamas, January 15; 



1893. 

 Fig. 3. Young Liriope, possibly L. catharinensis. This medusa is older 



than that shown in figure I. Banes Harbor, Cuba, February 



15, 1893. 

 Figs. 4 and 5. Liriope catharinensis. Figure 5, mouth of the same medusa, 



retracted. Agassiz Laboratory, Newport, Rhode Island, August, 



1892. 

 Fig. 6. Liriope catharinensis. With gonads of several shapes upon the 



several radial-canals. St. Marys River, Maryland, October 26, 



1904. 

 Fig. 7. Liriope scutigera. Tortugas, Florida, July, 1898. 

 Figs. 8, 9, and 10. Liriope scutigera. Ovary, stomach, and perradial 



tentacle of the medusa shown in figure 7. 

 Fig. II. Aglaura hemistoma. Oral view showing the sequence of lithocyst- 



clubs and tentacles. This is an oral view of the medusa shown 



in figure 3, plate 49. (See page 398.) 



Drawn from life, by the author. 



