228 ZOOPHYTES. 



27. ASTR^EA FUSCO-VIRIDIS. (Quoy <Sf Gaymard.} 



A. convexa ; poly pis 5-7'" latis ; discis late virentibus, inter dum partim 

 brunneis. Corallum robustum, subcellulosum ; caliculis scepius ob- 

 longis ; ceUis 4-6'" latis, vix profundis, intus obsolete aut non coro- 

 natis; collibus rotundatis, integris; lamellis bene regularibus, confertis, 

 denticulatis : transverse secto, stellis multiradiatis cum cellulis decom- 

 positis ; septisfere solidis. 



Convex; polyps 5 to 7 lines broad, disks bright green, sometimes 

 partly brown. Corallum firm and subcellular; calicles usually 

 oblong ; cells 4 to 6 lines broad, rather deep, obsoletely or not at all 

 coronate within; ridges rounded, entire; lamellae even, crowded, 

 denticulate : in a transverse section, stars many-rayed, with the 

 cellules decompound ; septa nearly solid. 



Plate 11, fig. 7, animal unexpanded; la, another variety enlarged; 

 7 b, vertical section, natural size ; 7 c, profile of cell, and lamellae 

 enlarged. 



Tongatabu. Quoy and Gaymard. Feejee Islands. Exp. Exp. 



This common Pacific species resembles the last. The disks vary 

 from green throughout to a small green centre, with the rest brown ; 

 and it is possible that there may be other varieties in which they are 

 brown throughout. The live specimen examined expanded only so 

 far as to show the tips of the crowded tentacles. 



Astrcea fusco-viridis, Quoy and Gaymard, Voy. de 1'Ast. iv. pi. 17, figs. 8, 9. The 

 figure may be recognised by the size and green disk ; but the tentacles should be crowded 

 and not in a single series. 



28. ASTR^A VIRENS (Dana.) 



A. convexa, undique late virens, polypis i" latis. Corallum cellulosum, 

 vix robustum ; cellis subprofundis, angulatis et scepe oblongis (4-6'"), 

 intus vix coronatis ; collibus rotundatis integris, lamellis regularibus 

 confertis, denticulatis, apice spinoso-denticulatis : transverse secto, 

 stellis multiradiatis cum cellulis valde decompositis ; septis '" crassis, 

 fere solidis, cellulis minutis, sparsis. 



