Plate 52. 



Fig. 1. Liriope rosacea, mature male. Tortugas, Florida, June 4, 1906. 

 Fig. 2. Liriope (exigua) " cerasiformis," green male. In the Gulf Stream 



off Cat Cay, Bahamas, April 29, 1907. 

 Fig. 3. Liriope exigua. Tortugas, Florida, June 4, 1906. 

 Fig. 4. Liriope exigua. Manubrium of the medusa shown in figure 4, plate 



53, showing the interradial longitudinal muscle-strands. 

 Fig. 5. JEgina rhodina. Mastic Point, Andros Island, Bahamas, June 20, 



1903. (See page 452.) 



Drawn from life, by the author. 



