POLYPS AND CORALS. 43 



This is a well marked species, somewhat allied to F. den- 

 tata Dana, but quite different in the closely papillose charac- 

 ter of the lower surface, and the thick, crowded and very 

 finely serrate septa. 



FuNGLi LACERA Verrill. 



F. echinata (pai's) Dana, Zoophytes. 



Fosette small ; columella fine trabicular ; principal sep- 

 ta rising perpendicularly ; these are but little rounded above, 

 and are lacerateiy divided into long, sharp, spine-like teeth, 

 nearly from the inner edge. The septa are crowded, all 

 except those of the last cycle, subequal in height, rather 

 thick, strongly granulated on the sides, toothed in a similar 

 manner. The later ones have a well marked tentacular 

 lobe, which rises abruptly, inclining outward at an angle of 

 45°. The lower surface is strongly costate, with deep 

 grooves and openings between the costse, which are sub- 

 equal, and, except those of the last two cycles, covered with 

 long, sharp and acute spines, even to the center. 



Diameter 6 inches, thickness 1.25. 



Fejee Islands. J. D. Dana. U. S. Expl. Exp. 



Differs from F. Dance in the less unequal septa, which 

 are thicker, far more crowded, much more strongly toothed, 

 and less rounded and more perpendicular at the inner edge. 

 The tentacular tooth is more strongly marked. The lower 

 surface is more numerously and strongly costate and spi- 

 nose, and the costse are less unequal. Some of these dif- 

 ferences were mentioned by Prof. Dana. A comparison of 

 his original specimens with a large number of F. Dana. (F. 

 echinata Dana) from Singapore has caused me to consider 

 the two forms distinct. 



FUMGIA, Sp, 



Two specimens of a Fungia, too young for identification, 

 •have a remarkably compact wall, closely costate, except 

 near the center. The form is broad, turbinate, the margin 

 of the wall inclining upward and producing a broad cup, 

 shaped coral, the largest two and a half inches across the 



