Fl.ATL 67. 



Fig. 1. Cyanca capillata var. fulva, young medusa 9 mm. in diameter. 

 Showing its habit of resting with lips spread out over bottom of 

 aquarium and its tentacles elevated, while at the same time the 

 bell pulsates vigorously. Agassiz Laboratory, Newport, Rhode 

 Island, June, 1895. 



Fig. 2. Cyaiica capillata\2iT. fulva. Oral view of quadrant ot bell of a young 

 medusa 10 mm. in diameter, gt. internal gastric cirri. Agassiz 

 Laboratory, Newport, Rhode Island, June 10, 1895. 



Fig. 3. Cyanea captUata var. fulva. Oral view of a medusa 15 mm. in 

 diameter showing gastrovascula I pouches (light blue) of sulnim- 

 brella. Newport, Rhode Island, June, 1895. 



Fig. 4. Aurrllia nurita, \oung medusa y mm. in diameter, showing develop- 

 ment of radial-canal system during formation of ring-canal. 

 Tortugas, Florida, June 4, 1907. 



Drawn from life, b\' the author. 



