562 ZOOPHYTES. 



The above description is taken from a Feejee specimen, having a 

 nearly globular form with an uneven or monticulose surface, and 

 very shallow piano-conical cells, with acute interstices. There are 

 about nine cells to half an inch. 



The Poritcs conglomerata of Lamarck and others includes all the massive species of 

 this genus. The name is applied to the above on the ground of Esper's fig., tab. 59 A. 



The Porites conglomerata, of Ellis and Solander, tab. 41, fig. 4, which is usually re- 

 ferred to this species, has more resemblance to a dried Alcyonium, as was suggested by 

 Ehrenberg. 



The P. conglomerata of Quoy and Gaymard (Voy. de 1'Ast., iv. 249, pi. 18, fig. 6-8), 

 is some other species; but which, is not determinable from the indifferent figure and 

 description. 



The P. conglomerata of Ehrenberg, from the Red Sea, may be the above : " Semipe- 

 dalis, et subpedalis, glomerata, globosa, gibbosa, sublobata, cellis parvis (5'" latis) obso- 

 lete hexagonis, contiguis, arenoso-scabris." " Esperi Icon. tab. 59, A. congruit." 



The Madrepora solida of Forskal (Icon. p. 131), is one of the massive Porites. 



15. PORITES LOBATA. (Dana.} 



P. lobato-glamerata, crasso-lamellosa et gibbosa. Corallum robustum 

 cellis angulatis, paulum excavatis, plano-conids, majusculis (fere'%"}; 

 septis tenuissimis, acutis. 



Lobato-glomerate, very thick lamellar, and gibbous. Corallum having 

 the cells angular, piano-conical, rather large (nearly f of a line) ; 

 septa very thin and acute. 



Plate 55, fig. 1, corallum, natural size; 1 a, 1 b, cells, enlarged. 



Sandwich Islands. Exp. Exp. 



This species is very similar in its cells to the conglomerata, and 

 may prove to be only a variety of that species. It, however, grows 

 in deeply divided glomerate forms, not spheroidal, and sometimes 

 rising into broad lamellar lobes or plates, an inch or more thick, or 

 forming subcylindrical branchlets, half to one inch long. The mass 

 below often consists of broad, compressed, coalescing plates, one to 

 three inches thick. There are eight or nine neatly polygonal cells 

 to a half inch, separated by very thin septa. 



