TRIBE I. AST R^ ACE A. 323 



Small (1J inches), foliaceous, hemispherical, fronds 4 lines broad, dis- 

 torted, rounded at apex. Corallum with crowded oririmes on the 

 under surface, scarcely a line broad. 



This species, described by Ehrenberg, is near the papyracea, but 

 is different in form and has smaller and more crowded oririmes. 



Agaricia crispa, EhrenS., G. Ixvi., sp. 2 ; locality not known. 



3. PAVONIA PAPYRACEA. (Dana.) 



P . pumila, foliacea, frondibus solitariis, erectis et valde crispis, tenuissi- 

 mis (viz "' crassis), multilobatis. Corallum papyraceum ; lamellis 

 subtilibus, juxta oririmas prominulis ; oririmis paucis et remotis, !"' 

 latis ; super -fide infernd obsolete striata, vix scabriuscula. 



Small, foliaceous, fronds solitary, erect, strongly crispate, very thin 

 (scarcely of a line thick), multilobate. Corallum papyraceous, 

 lamellae very delicate, a little prominent near the oririmes; oririmes 

 few and remote, 1 lines broad; under surface obsoletely striate, 

 very slightly scabrous. 



Plate 22, figure 3, corallum, natural size. 



The Sooloo Sea. Exp. Exp. 



This extremely delicate species grows in small fronds, much crisped 

 and lobed, and about one and a half inches high, and two broad. The 

 lamellte are very neat and minute, a little prominent around the ori- 

 rimes. The few distant oririmes, of rather large size, and the general 

 mode of growth, distinguish the species from the crispa. 



4. PAVONIA ELEPHANTOTUS. (Pallas.} Dana. 



P. foliacea, cespitosa, foliis tenuibus, amplis et ampliter crispis, inter- 

 dum laceris et proliferc productis. Corallum oririmis remotis, gran- 

 dibus ; lamellis subtilibus, non confertis, denticulatis ; superjicie infe- 

 riore striata. 



