274 ZOOPHYTES. 



plicate, 1-3 inches broad, very much crispate, often crenato-lobate. 

 Corallum with the ridges a line high, sometimes obsolete, lamellse 

 minute and crowded. 



Plate 16, fig. 1, part of corallum, natural size. 



Feejee Islands. Exp. Exp. 



This is a very delicate species, growing in clusters a foot or more 

 across, with the leaves more rolled and crispate, and the ridges much 

 smaller and less separate than in the preceding species. The adjacent 

 folia are but little coalescent. 



4. MERULINA CRISPA. (Dana.} 



M. tenuissime explanata, foliis crispis et undique coalitis, parvulis, sub- 

 laciniatis, interioribus Ufrontibus. Corallum collibus lamellisque laxis, 

 incequalibus, valde aspens. 



Very thin explanate ; folia crispate and every where coalescing, small, 

 sublaciniate, the inner bifacial. Corallum with the ridges and 

 larnellse lax, uneven, arid very rough. 



Sooloo Sea, East Indies. Exp. Exp. 



This small species is distinct in its frequent coalescence, and the 

 bifacial character of the interior folia, arising from the union of two 

 by their back surfaces, or from a single folia folding back upon itself, 

 and the two approximated surfaces growing together. The lamellae 

 of the ridges are lax and uneven. Only a beach specimen was ob- 

 tained by the author. 



* 



5. MERULINA FOLIUM. (Lamarck.} Dana. 



M. tenui-ezplanata, paulo concava, late orbiculato-lobata. Corallum 

 subtus leviter radiato-striatum ; superne conulis in&qualibus, ad mar- 

 ginem extenuatis, et obsolescentibus. 



Thin explanate, somewhat concave, with broad rounded lobes. Co- 

 rallum below, faint radiato-striate ; above, the surface covered with 

 unequal cones, diminishing and obsolescent at the margin. 



