514 ZOOPHYTES. 



Furcato-ramose, branchlets long, erect; polyps red, with short and 

 stout tentacles. Corallum with spinous cells, sex-dentate within. 



Port Carteret, New Ireland. Quay $ Gaymard. 



This species, according to Quoy and Gaymard, approaches the true 

 Madrepores, and also the Porites. The specimen examined by them 

 was two or three inches high, with dichotomous branchings, cylin- 

 drical or a little compressed, subacuminate, and covered with very 

 small irregular crenulate cells, separated by porous partitions, the 

 porosity of which is compared to "a confused crystallization." 



Alveopora rubra, Quoy and Gaymard, Voy. de 1'Ast., iv. 242, pi. 19, figs. 11-14. 



5. ALVEOPORA FENESTRATA. (Lamarck.) Dana. 



A. furcato-ramosa, ramis crassis, subgibbosis, obtusissimis. Corallum 

 cellis profundis, subangulatis, intus Jiliferis, parietibus fenestratis. 



Furcato-ramose; branches stout, subgibbous, very obtuse. Corallum 

 having the cells deep, subangular, filiferous within; parietes fenes- 

 trate. 



"Austral Seas." Peron $ Lesueur. 



This species, which is referred to the genus Pocillopora by La- 

 marck, has the cells of an Alveopora; they are described as enclosed 

 by cribrate parietes, with small calcareous threads within the cells, 

 which coalesce at the bottom of the same. 



Pocillopora fenestrata, Lamarck, ii. 443, No. 5. 



NOTE. The Alveopora mrirlis, of Quoy and Gaymard, as figured by them, has the 

 cells and general habit of a Sideropora. The A. rubra also approaches that genus. 



SUBFAMILY II. FAVOSITIN^. 



Favositidce cellis coralli ad summitates contiguis, angulatis ; lamellis in- 

 tegris, scepe angustissimis out obsoletis. 



