232 ZOOPHYTES. 



terque pectinato-denticulatis : transverse secto, stellis multiradiatis cum 

 cettulis valde decompositis ; septis '" crassis, uniseriatim aperteque 

 cettulosis. 



A. convex, subhemispherical. Corallum light, cellular; cells often 

 elongated and a little flexuous, 2 to 3 lines broad and sometimes 8 

 long ; angular, deep, short coronate within ; ridges narrow, scarcely 

 a line thick, entire, obtuse, perpendicular; lamellae neatly even, 

 finely and elegantly pectinato-denticulate : in a transverse section, 

 stars many-rayed, with the cellules much decompound ; septa a 

 line thick, with large cellules in a single series. 



Plate 12, fig. 3 a, outline view of cells; 3 b, transverse section of 

 corallum, natural size ; 3 c, vertical section of same. 



East Indies. Exp. Exp. 



This is a light cellular coral, distinguished by its angular and fre- 

 quent flexuous calicles, deep cells, narrow, entire, perpendicular ridges, 

 with the lamellae very even, minutely and beautifully denticulate. 

 The specimen in the collections is a convex mass five inches in dia- 

 meter. It appears to be the A. magnified, of Blainville. 



Astrcea (Favastrcea) magnified, Blainville, The Astrcea halicora of Ehrenberg may be 

 Man. 374, plate 54, fig. 3; without de- near this species, but the description is 

 scription. too concise to determine their identity. 



33. ASTR.EA FILICOSA. (Dana.} 



Corallum percettulosum, subrobustum; cellis profundioribus, 5-8'" latis, 

 suborbiculatis, perpendicularibus ; collibus lamellisque angustis : trans- 

 verse secto, stellis multiradiatis, lamellis robustis, cettulis decompositis ; 

 septis subcellulosis, cettulis oblongis interrupte uniseriatis. 



Corallum quite cellular, yet firm ; cells very deep, 5 to 8 lines broad, 

 suborbiculate, perpendicular; ridges and lamellse narrow: in a 

 transverse section, stars multiradiate, lamellae stout, cellules decom- 

 pound; septa somewhat cellular, cellules oblong, mostly in a single 

 interrupted series. 



Plate 12, fig. 4, cells of a worn corallum, natural size; 4 a, trans- 

 verse section of corallum, natural size ; 4 b, vertical section of same. 



