EXPLANATION OF PLATE XXXVIII. 



Figure 282. — Hybocodou piolifer, (p. 736;) uatural size, the Lead seen from the back 

 side. 



283. — Alcyoninm carneum, (p. 737 ;) three of the polyps fnlly expanded, much 

 enlarged. 



284. — Sagartia leucolena, (p. 738;) natural size, in expansion, but the tentacles 

 are not fully extended ; the * indicates the long odd tentacle. 



285. — Halocampa in'oducta, (p. 738 ;) natural size, •vrell expanded, but the body 

 may be much more elongated. 



286.— Epizoanthus Americanus, (p. 740 ;) a colony whicli had completely cov- 

 ered and absorbed a shell occupied by a hermit-crab, (Eupagurus 

 pubesceus,) which still lived within the cavity; the polyps are not 

 expanded, uatural size. 



287. — The same ; one of the polyps in full expansion, uatural size. 



(Figure 2t2 was copied from L. Agassiz ; 28G is fram the American ISTaturalist, dra-wn by E. S. Morse ; 

 tbe rest were drawn T).v A. E. Verrill.) 



