TRIBE I. ASTR^ACEA. 163 



Plate 6, fig. 2, corallum, natural size ; a, profile of transverse 

 section. 



Cape Frio, entrance to the harbour of Rio de Janeiro. Exp. Exp. 



The spinulous exterior of this species is characteristic. The cell 

 has a linear bottom, and is about a fourth of an inch deep. 



NOTE. The Turbinolia amicorum, of Blainville, probably belongs near the above, 

 but no description of it has yet been published. It is from the Friendly Islands, Pacific 

 Ocean. (Man. d'Actin. 341.) 



2. Euphyllise segregato-gemmatse, non meandrinse. 



6. EUPHYLLIA GLABRESCENS. ( Chamisso an d Eysenhardt. ) 



E. furcate ramosa, 2" alta ; discis simplicibus, tentaculis plurimis, 1" 

 longis, clavatis, Jlavis. Corallum ramis " crassis, extus glabriusculis, 

 ca.lie.ulis angulosis, pollicaribus, centra profundissimo, margine integris 

 vel obsolete denticulatis. 



Segregato-gemmate, furcately ramose, 2 inches in height; colour 

 yellow ; tentacles many, an inch long, clavate. Corallum with the 

 branches \ an inch thick, exterior nearly smooth ; calicles angular, 

 an inch wide, very deep at centre, margin entire or obsoletely 

 denticulate. 



The Radack Archipelago, Pacific Ocean. Chamisso. 



Caryophylliaglabrescens,Cha.m\ssoandEy- Lobophyllia glabrescens, Blainville, Man. 



senhardt, Nov. Act. Nat. Curios., vol. x. d'Actin. 355. The reference by Blainville 



, Lamarck, 2d edit. ii. 356, No. 13 a. to plate liii. fig. 3, of his Atlas, is wrong; 



, Ehrenberg, op. cit. Gen. Iviii. sp. 4. the figure represents the L. angulosa. 



7. EUPHYLLIA GRACILIS. (Dana.} 



E. furcate ramosa, convexa, discis scepius simplicibus. Corallum caliculis 

 subturbinatis, vix 2'" remotis, extus kviter striatulis, cella scepius $" 

 latd, inter dum 1" ekngata ; hmellis latissimis, tenuissimis, paululum 

 exsertis. 



