TRIBE I. ASTR^EACEA. 223 



verse secto, septis biseriatim cellulosis; stellis multiradiatis cum cellulis 

 valde decompositis. 



Subglobose, colour dark brown ; polyps J an inch broad. Corallum 

 quite cellular, with rounded calicles (as in the ananas), subangular, 

 contiguous, subequal ; cells nearly circular, often oblong, 3 to 4 

 lines broad, rather' shallow, obsoletely coronate within ; lamellae 

 even, finely denticulate within and without : in a transverse sec- 

 tion, septa biseriately cellular; stars many-rayed, with the cellules 

 much decompound. 



Plate 11, fig. 2, the polyps unexpanded; 2 a, a few cells, natural 

 size ; 2 b, vertical section of cell, with profile of the lamellae, enlarged ; 

 2 c, vertical section of corallum, natural size; 2d, transverse section. 



Feejee Islands. Exp. Exp. 



This coral has the rounded prominent calicles of the ananas of 

 Ellis, and is near that species. The specimen in the Expedition col- 

 lections is nearly globular, and is about four inches in diameter. 



22. ASTR^A PUTEOLINA. (Dana.) 



A. hemispherica; poly pis J" latis. Corallum percellulosum ; caliculis 

 subpolygonis, parce prominulis; collibus 2"' crassis, rotundatis et 

 sukatis; cellis profundioribus, et fere perpendicularibus, viz coronatis ; 

 lamellis regularibus, subtiliter denticulatis. 



Hemispherical ; polyps J an inch broad. Corallum light cellular ; 

 calicles subpolygonal, a little prominent; ridges 2J lines thick, 

 rounded and sulcate ; cells deeper than broad, nearly perpendicular, 

 scarcely coronate within ; lamellae even, finely denticulate. 



Plate 11, fig. 3, cells of corallum, natural size; 3 a, section of cells, 

 showing profile of lamellce ; 3 b, vertical section, natural size. 



East Indies. Exp. Exp. 



This is a light species, with very deep cells, rounded sulcate ridges, 

 and even, finely denticulate, lamellae. It is near the fragilis, but 



