480 ZOOPHYTES. 



Corattium album, porosum, maximum, mu- The Heteropora cervicornis, of Ehrenberg, 



ricatum, Sloane, Jam., i., tab. 18, fig. 3. (op. cit., sp. 10) is a Red Sea species, 



Corallium cornu cerwm'/<wz<J,Seba, Thes., and may be the M. robusta. 



tab. 114, fig. 1. Esper's Mad. muricata, tab. 49, referred 



Mad. muricata, in part, of early authors. here by Lamarck, is nearer the M. ar- 



Mad. cervicornis, Lamk., ii. 449, No. 8. buscula. 



, Blainville, Man., 390. 



54. MADREPORA PROLIFERA. (Lamarck.} 



M. arborescens, fruticosa, late ramosa, ramts longis, teretibus, paulum 

 arcuatis, J-|" crassis, (infra raro 1"), supra, prolifcris cum ramulis 

 oppositis in piano scepe instructis. Corallum scabriculum ; caliculo 

 apicali valde crasso (fere 2'") et exserto ; lateralibus subcequalibus 

 confertis, elongato-nariformibus, compressiusculis, scepius 1^'" longis, 

 bene striatis, aperturafere orbiculata. 



Arborescent, shrubby, spreading ramose, branches long, terete, a little 

 arcuate, J to | of an inch thick, (below rarely 1 inch), proliferous 

 above, and the branchlets often in a plane. Coralluin scabrous ; 

 apical calicle very stout (nearly 2 lines), and exsert ; the lateral 

 subequal, crowded, long-nariform, but little compressed, mostly 1J 

 lines long, neatly striated, aperture nearly circular. 



West Indies. 



The prolifera grows to a height and breadth of three or four feet, in 

 large spreading clumps of arborescently branched stems, which are 

 generally very proliferous above, and often have the side branchlets 

 near the summit, in the same plane. The outer lip of the lateral 

 calicles is often so prolonged that the aperture opens inward. 



Corallium album minus muricatum, The Heteropora prolifera, of Ehrenberg (op. 



Sloane's Jam. Hist., i., tab. 17, fig. 2 ; a cit., G. Ixix. sp. 17), is another species. 



young clump. The Madrepora prolifera, of Quoy and 

 Mad. muricata, Esper, Fortsetz., i. 53, Gaymard (Voy. de 1'Ast., iv. 235, pi. 19, 



tab. 50. fig. 4), is also another species, too imper- 

 Mad. prolifera, Lamk., ii. 449, No. 9. fectly figured and described to be deter- 

 , Blainville, Man. d'Act., 390. mined. 



