508 ZOOPHYTES. 



profunde foveolatum ; cellis radiatis in imis foveis dispositis, inter- 

 stitiis tenuibus, interdum subacutis. 



Glomerate, in crusting, nearly plane or a little undulate above. Co- 

 rallum profoundly alveolate, the radiated cells situated at the bottom 

 of deep pits a line broad; interstices very thin and sometimes sub- 

 acute. 



Probably the Feejee Islands. Exp. Exp. 



The pits of the surface are often subangular, and generally a line to 

 a line and a half deep, and the cell at bottom is very distinctly twelve- 

 rayed. The specimen in the collections is an incrusting mass, half 

 an inch to three-quarters thick, and ten inches in breadth. 



VI. Cellis caralli immersis, superf.de omnino kvi, zoophytis ramosis. 



28. MANOPORA DIGITATA. (Dana.} 



M. pumila, ramosa, scepe digitata, ramis subteretibus, compressiusculis, 

 scepe tortuosis, \" crassis, subcequalibus, obtusis ; polypis flavis, tenta- 

 culis brevibus, cequis. Corallum omnino leve, cellis immersis, '" latis. 



Small, ramose, often digitate, branches subterete, somewhat com- 

 pressed, often tortuous, \ of an inch thick, subequal, obtuse; polyps 

 yellow, tentacles short, equal. Corallum quite smooth, cells im- 

 mersed, i of a line broad. 



Plate 48, fig. 1, zoophyte, natural size; la, polyp, enlarged; 1 b, 

 extremity of branch, natural size ; 1 c, cell and surface around, en- 

 larged ; 1 d, part of transverse section of branch, enlarged. 



Feejee Islands. Exp. Exp. 



The specimen is a ramose stem, three and a half inches high, 

 having numerous crowded branches, two inches or so in length. In 

 its smooth surface, it resembles a Millepore, but the cells are not 

 internally crossed by septa. Towards the extremities of the branches, 

 each cell is the centre of an obsolete depression, a line in diameter, 

 and the surface consequently is faintly pitted. 



