TRIBE III. MADREPORACEA. 505 



Plate 47, fig. 4, corallum, natural size. 



Sandwich Islands, Hawaii, Hido Bay. Exp. Exp. 



The clumps are a foot or more high, and consist of large and stout 

 irregular branches much coalescing. At apex the branches are thick 

 and rounded, the papillse are less porous than the interstices. The 

 zoophyte is alive for two or three inches from the summit. 



21. MANOPORA NUDICEPS. Dana. 



We notice under this name the specfes from the Red Sea, elegantly figured by Sa- 

 vigny, in the large work on Egypt (Plate iv. fig. 4, of Zoophytes), which has many 

 of the characters of the above, yet is quite distinct in its more crowded and much smaller 

 branches (one-third of an inch thick), and their naked summits. This is the Madrepora 

 abrotanoides of Audouin. 



22. MANOPORA LIMA. (Lamarck.) Dana. 



M. late foliacea, subcucullata, extus 3" animata. Corallum vix fra- 

 gile, supra, confertim rugosum, rugis tenuibus (vix %'"}> interdum 

 reticulatis. 



Broad foliaceous, subcucullate, exterior alive for 3 inches or so. Co- 

 rallum scarcely fragile, above, crowdedly rugose, rugae thin (hardly 

 a line thick), sometimes reticulate. 



"Austral Seas." Peron 4- Lesueur. Sooloo Sea. Exp. Exp. 



The cucullate folia are about one-eighth of an inch thick, and form 

 clumps a foot or more in diameter. The thin prominent ridges of the 

 surface are very uneven, scarcely half a line thick, and the intervals 

 between, seldom broader. 



Corallium infundibuliforme, &c. (?), Seba, Agaricia lima, Lamarck, ii. 382, No. 6. 



iii. tab. HO, fig. 7. Montipora lima, Blainville, Man., 389. 



Madrepora foliosa (?), Esper, Fortsetz. i. 



tab. 58., A. 



127 



