132 THE ATLANTIC. [chap.iii. 



temperature soundings at intervals of 25 fathoms down to 100. 

 Tlie trawling was comparatively successful at tliis station, most 

 of the invertebrate groups being more or less represented. Sev- 

 eral living specimens w^ere procured of a pretty little coral, Fun- 

 gia syimnetrica (Fig. 33), allied generically to the mushroom 



Fig. Z2.—Fungia symmetrica, Pourtales. Three times the natural size. (No. 133.) 



corals so abundant in shallow water on coral reefs, and in mis- 

 cellaneous natural-history collections. Fungia symmetrica was 

 first described by Count Pourtales, from deep water 350 to 450 

 fathoms in the Strait of Florida. The corallum is circular, 

 plano-convex ; the wall is perfectly plane and very little perfo- 



