478 ZOOPHYTES. 



margine crassis, valde incequalibus, multis proliferis, multis sparsis 

 obsokscentibus, aliis 2'" longis, et !"' crassis, vix striatis ; apertura 

 oblonga, stella conspicua, duabus lamellis prominulioribus. 



Fruticose, spreading ramose, branches scarcely terete, to of an 

 inch thick, summit branchlets 3 to 4 lines thick, arcuate and pyra- 

 midato-attenuate, very proliferous, with short and unequal incipient 

 branchlets. Corallum nearly smooth ; apical calicle a line broad, 

 exsert; the lateral, crowded, compressed, tubiform or tubo-nariform, 

 with the margin stout, very unequal, many proliferous, many obso- 

 lescent; others 2 lines long and f of a line thick, scarcely striate ; 

 aperture oblong, star distinct, two of the lamellae most prominent. 



Plate 41, fig. 1, part of corallum, natural size; 1 a, extremity of 

 branch. 



Feejee Islands ? Exp. Exp. 



This species grows in clumps of much-branched stems, with the 

 branches quite uneven from the unequal calicles and short incipient 

 branchlets. The calicles are stout and have a nearly smooth exterior ; 

 though very unequal, none are wholly obsolete; the surface is scarcely 

 striated. The specimen in the collections is a broad clump ten inches 

 high. 



Mad. abrotanoides, Lamk., ii. 448, No. 7. The Madrepora abrotanoides, of Quoy and 



, Blainville, Man., 390. Gaymard (Voy. de 1'Ast., iv. 232, pi. 



The Heteropora abrotanoides of Ehrenberg, 19, figs. 1, 2), is probably a different 



(G. Ixix. sp. 19,) is another species. species. 



52. MADREPORA AUSTERA. (Dana.) 



M. fruticosa, late ramosa, et valde prolifera, r amis fere teretibus, et 

 supra attenuatis, ramulis incequalibus polypisque proliferis numerosis. 

 Corallum scabriculum, caliculo apicali crasso (1-1 i'"), exserto ; late- 

 ralibus ascendentibus, subconfertis, tulriformibus, out tubo-nariformi- 

 bus, l-2"' longis, aspere striatis; apertura orbiculata, stella profunda 

 conspicua, sex-radiatd, duabus lamellis prominulioribus. 



Fruticose, spreading ramose, and very proliferous, branches nearly 

 terete, and tapering above, with numerous unequal lateral branch- 



