186 



THREE CRUISES OF THE " BLAKE. 



characteristic inhabitants 



<IUJ^'^ 



\> 



J 



Fig. 93. — Linerges merciirins. -f. 



Occurrinof in windrows 

 Reef is a small yellowish 



of deep water, though they come to 

 the surface occasionally. 



Nearly all the ctenophores are found 

 in swarms, which cover the surface 

 for long distances. Schools of dis- 

 cophores are not uncommon. I have 

 frequently met Cyanese and Aurelise 

 in such quantities that they appeared 

 at a distance like huge sand-banks, 

 just rising to the surface of the water. 



alono^ the whole lenoth of the Florida 

 brown discophore (Fig. 93) (Linerges 



Fig. 95. — Fourth Stage. 

 Glossocodon Larva. 

 Greatly magnified. 



Fig. 96. — Sixth Stage. 

 Glossocodon Larva. 

 Fig. 94. — Glossocodon tennirostris. Magnified. Greatly magnified. 



mercurius), which looks like a thimble ; it is one of the most 

 common of the West Indian medusae, and is remarkable for the 



Pig. 97. — Janthina. 

 Slightly reduced. 



Fig. 98. — Glaneus. Enlarged. 



