466 ZOOPHYTES. 



35. MADREPORA FLORIDA. (Dana.) 



M. arborescens, maxima, late remoteque ramosa, ramis \\" crassis, 

 sensim attenuatis, acervos polypiferos parvulos undique gerentibus. 

 Corallum acervis caliculatis J" latis, caliculis incequalibus, tubifor- 

 mibus valde brevibus, et incrassatis, striatis, aliis tubo-nariformibus, 

 cellis immersis interspersis ; stelld sex-radiata conspicua, duabus 

 lamellis non prominulioribus. 



Arborescent, very large, broad and remotely ramose, branches \\ 

 inches thick, gradually tapering, bearing over the surface small 

 .clusters of polyps. Corallum covered with calicular tubercles J of 

 an inch broad, calicles unequal, very short tubiform, rather stout, 

 striated; some tubo-nariform, with immersed cells interspersed; star 

 6-rayed, distinct, two of the lamellae not more prominent. 



Plate 37, fig. 1, corallum, natural size. 



Feejee Islands. Exp. Exp. 



The specimen obtained at the Feejees is a very stout branch, 

 eighteen inches high. The calicular tubercles or rosettes consist in 

 general of six to ten very short calicles ; arid as they cover regularly 

 the whole surface, they give a neat appearance to the corallum. Be- 

 tween these rosettes, the cells are mostly immersed. 



E. Arborescentes, aut fruticosce, ramis inequaliter vel baud proliferis. 



I. Caliculis fragilibus, labcttatis, orbiculato-nariformibus, aut tubiformibus. 



36. MADREPORA IMPLICATA. (Dana.) 



M. cespitoso-arborescens, stride ramosa, ramis confertis, curvatis et tor- 

 tuose implicatis, scepe coalitis, tenuiter attenuatis, cauKbus crassitudine 

 ", ramulis ". Corallum scabriculum, ports lineatis notatum, caliculo 

 apicali cylindrico, $"' crasso ; later alibus, infra obsoletis, prope apicem 

 brevibus et sparsis, orbiculato-nariformibus, fragilibus ; stelld obso- 

 kscente. 



Cespitoso-arborescent, closely ramose, branches crowded, curved, and 



