534 



ZOOPHYTES. 



globosis, cum cettis parvulis, '" latis ; stelld inconspicud, columellaque 

 obsolescente. 



Neat hemispherical ; branches lamellar, \ an inch thick (sometimes |), 

 2 to 4 inches wide, evenly verrucose, apex broad and naked. Co- 

 rallum having the verrucae nearly globose, with the cells constituting 

 them small, \ of a line broad ; star indistinct, columella obsolescent. 



Plate 51, figure 2, outline sketch of part of corallum ; 2 a, portion 

 of a plate, natural size ; 2 b, verrucse, ditto ; 2 c, surface and cells, 

 enlarged. 



Feejee and Society Islands. Exp. Exp. 



The hemispherical clumps are neatly regular, and grow to a diameter 

 of eighteen inches. The broad plates or folia are somewhat sinuous 

 or meandering at summit, and very evenly distant. In a specimen 

 from the Feejees, the folia are three-fourths of an inch thick ; while, in 

 one from Tahiti, they are about half an inch. 



15. POCILLOPORA PLICATA. (Dana.} 



P. cespitosa, bene hemispherica, caulibus late laminatis, $" crassis et 

 1-5" latis, parce subdivisis, apice truncatis et nudis, lateribus remote 

 verrucosis interdum subnudis scepe plicatis aut verrucis in cristas 

 digestis. Cor alii cellis majusculis ; stelld columellaque conspicuis. 



Cespitose, neat hemispherical ; branches broad laminate, J of an inch 

 thick, and 1 to 5 inches broad, sparingly subdivided, truncate 

 and naked at summit, sides remotely verrucose, often distantly pli- 

 cate, or having the verrucse arranged in crests. Corallum having 

 the cells rather large ; star and columella distinct. 



Plate 50, figure 7, plate, natural size ; 7 a, oblique view of surface, 

 with cells enlarged ; 7 b, same in vertical view ; 7 c, vertical section, 

 enlarged ; 7 d, transverse section, ditto. 



Feejee Islands. Exp. Exp. Sandwich Islands. Rev. Mr. Baldwin. 



The plates or folia which constitute the clumps in this species, are 

 as broad as in the grandis, and much thinner, with few verrucse on 



