POLYPS AND CORALS. 327 



Color of epidermis dark greenish, brownish below; 

 narrow naked space below the tentacles purplish brown ; 

 outer tentacles purplish brown, with transverse blotches 

 of white ; inner ones pale yellow, irregularly annulated 

 with dark purplish brown. Disk and bases of inner ten- 

 tacles dark purplish brown, with a few streaks of opaque 

 white. Height about 2.25 inches; greatest diameter .85. 



Kikaiasima (near Ousima), Japan, in a sheltered har- 

 bor, attached to the under surface of stones in slimy, 

 weedy places, January, 1855. Dr. Win. Stimpson. 



The specimen, contracted in alcohol, is largest in the 

 middle, suddenly contracting above, diminishing gradu- 

 ally below. Above the constriction the surface is strongly 

 sulcated longitudinally, with soft rounded papillae between 

 the grooves. The naked part below the tentacles is in- 

 flated and wrinkled. On one side, a little below the 

 margin, there is a rounded opening with distinct, thick- 

 ened margins, about .04 in diameter. Margin of disk 

 forms a well defined, smooth rim. Lower part of column 

 with a thin, close epidermis. 



The name, davata, having been first used by Dr. Wm. 

 Stimpson for this species of Phellia, I have called the 

 species, described by Duchassaing and Michelotti, Phellia 

 Americana (Paractis davata, Duch. and Mich., Corall. 

 des Antilles, p. 40, 1860, PL 6, figs. 7, 8). 



PHELLIA COLLAEIS Verrill, these Proc. IV, p. 151., 

 1865. 







Edwardsia collaris Stimpson, loc. cit., p. 376, 1855. 



Vol. VI, plate 1, figures , 2 a. 



Base broad. Column much elongated, tapering toward 

 the summit, below the tentacles with a broad naked band, 

 other parts covered with dirty brownish epidermis, to 

 which fine particles of mud adhere closely. Tentacles 

 about forty, small, slender, crowded. 



Color of naked part of column whitish, marked with 

 eight fusiform streaks of brown, Tentacles brown. 

 Height of column in expansion 1.40 inches ; diameter .62. 



