TRIBE III. MADREPORACEA. 529 



from three-fourths to one inch in width at summit; occasionally they 

 are only a third of an inch, especially the outer branches of the 

 clump. The branches are less compressed, and the verrucas more 

 prominent at apex than in the verrucosa. 



Pocillopora favosa, Ehrenberg, G. Ixxv., sp. 5. 



7. POCJLLOPORA VERRUCOSA. (Lamarck.) 



P. hemispheric^ cespitosa, ramis crassis.fere rectis, subdivisis, apice scepe 

 dilatatis, sen compressis, ^ J" crassis et f-2" latis, undique usque ad 

 apicem bene verrucosis. verrucis brevibus simplidbus, apicalibus mi- 

 noribus. Corallum cellis majusculis, columella obsoleta. 



Hemispherically cespitose, branches stout, nearly straight, subdivided, 

 often dilated or compressed at apex, \ an inch thick, and 1 to 2 

 inches broad, every where neatly verrucose even over the summits, 

 verrucse short, simple, the apical a little smaller than the lateral. 

 Corallum with the cells rather large; columella obsolete. 



Plate 50, fig. 3, branch in outline, of specimen from the Sandwich 

 Islands ; 3 a, verruca3, natural size. 



East Indies and Pacific Ocean. Sooloo Sea and Sandwich Islands. 

 Exp. Exp. 



A stout species, forming even, hemispherical clumps, often eight 

 inches or more in diameter, consisting of compressed branches, sepa- 

 rated by regular intervals of about half an inch. The verruca?, 

 though distinct at apex, are often obsolescent. The branches are 

 thicker and more crovvdedly and coarsely verrucose than in the fol- 

 lowing species; and, moreover, the cells have no distinct columella. 



Mad. verrucosa, Ellis and Sol., 172, No. 78. sis, apice subpollicaribus, dilatatis sublo- 



PociUopora verrucosa, Lamk., ii. 443, No. 3. batisque breviler et apice verrucosis, ver- 



, Deslongchamps, Encyc., 631. rucis subglobosis, irregularibus, interdum 



, Blainville, Man., 398. in costas confiuentibus, stellulis ciliatis, 



Pocillopora Hcmpricldi (?), Ehrenb., G. semilinearibus." Red Sea. 



Ixxv., sp. 6. It is described as follows: The Pocillopora verrucosa of Ehrenberg 



"Semipedalis, sufTruticosa, hemispherica, (G. Ixxv., sp. 7), is another species, 

 diviso-ramosa, ramis compressis, " cras- 



133 



