512 



ZOOPHYTES. 



1. ALVEOPORA RETEPORA. (Ellis.) Blainville. 



A. glomerato-globosa. Corallum cellis angulatis, margine erecto, denti- 

 culisque scabro. 



Glomerato-globose. Corallum with the cells angular, and having an 

 erect margin, scabrous with minute teeth. 



The characters laid down for this species are insufficient to distin- 

 guish it from some of the following. According to Ellis's figure, 

 which is probably natural size, the cells are nearly a sixth of an inch 

 in diameter, and in this large size the species is peculiar. The loca- 

 lity is not given. 



Mad. retepora, Ellis and Solander, 166, Forties reticulata, Deslongchamps, Encyc., 



tab. 54, figs. 3, 4, 5. 651. 



Parties reticulata, Lamk., ii. 433, No. 1. Porites Peronii, Blainville, Diet, des Sci. 

 , Lamour., Exp. Meth., 60, pi. 54, figs. Nat., xliii. pi. 39, fig. 3 ; and Alveopora 



3, 4, 5. retepora, Man., 394, pi. 59, fig. 3. 



2. ALVEOPORA DEDALEA. (Forskal) Blainvitte. 



A. lobato-glomerata, 2-3" animata ; polypis expansis rufo-fuscis aut 

 cinerascentibus, tentaculis filiformibus ; contractis, ceruginoso-vires- 

 centibus. Corallum tenerc spongiosum, cellis linearibus, raro latiori- 

 bus, septis sursum spinulosis itaque super fide tola hispidd. 



Lobato-glomerate ; expanded polyps, brownish-umber, or ash-coloured, 

 tentacles filiform; when contracted, greenish-bronze. Corallum 

 spongy and tender; cells a line in diameter, rarely wider, septa 

 spinulous above, and the surface of the corallum, therefore, through- 

 out hispid. 



Red Sea. Forskal, Savigny, and Ehrenberg. 



According to Savigny's beautiful figures in the great work on 

 Egypt, the specimens are alive for about an inch and a half or two 

 inches at top, and the holes of the cribrate parietes are scarcely wider 

 than the intervals between them; and in both of these characters as 

 well as its rather firmer texture, the species differs from \hespongiosa. 



In the collections of the Expedition there are specimens apparently 



