160 ZOOPHYTES. 



or fan-shaped form suggested to Lesson his generic name Flabellum, 

 which was proposed for this species. The inferior edge is quite sharp, 

 and forms, according to Lesson's figures, a very low obtuse angle 

 (about 150) at the centre, where there is a small prominence, which 

 is the remains of the pedicel. In some of the specimens examined by 

 the author, the edge was often quite straight, and in others formed a 

 re-entering angle at centre. The sides are flat or a little concave, and 

 the exterior has a little the appearance of tortoise-shell. The lamellae 

 are regular, subdenticulate or finely plaited on each surface, and a 

 little undulate near the bottom of the cell, which is very narrow- 

 linear. 



The animal, as represented by Lesson, closely resembles in general 

 characters our E. rugosa, evincing the propriety of uniting his genus 

 Flabellurn with Euphyllia. An outline is given from Lesson's plate, 

 in order to show this resemblance. 



Flabellum pavoninum, Lesson, Illust. do Flabellum pavoninum, Lamarck, 2d ,ed., 

 Zool., plate 14. ii. 365. 



2. EUPHYLLIA ANTHOPHYLLUM. (Ehrenberg.) Dana. 



E. erecta, compressa, affixa ; 4^'" lata et alia. Corallum margine in- 

 tegrum ; aperturd oUongci ; Jamellis inclusis, denticulatis latere granu- 

 losis : extus obsolete striatum. 



Erect compressed, attached, 4 lines high and broad. Corallum with 

 the margin entire; aperture oblong ; lamellce included, denticulate, 

 with the lateral surface granulous : exterior obsoletely striate. 



This species is arranged by Ehrenberg in his genus Monomyces, a 

 notice of which is appended at the close of the Astrseacea. The de- 

 scription is brief, but appears sufficient to warrant our referring the 

 zoophyte to the genus Euphyllia, among the non-budding species. 

 The specimen described belonged to the Royal Museum at Berlin. 



Monomyces anlhophyllum, Ehrenberg, Gen. xlvii., sp. 2. 



3. EUPHYLLIA SPHENISCUS. (Dana.) 



E. simplicissima, libera, cuneiformis, inverso-deltoidea, superne arcwtta 

 basi truncata ; carnea et luteo-viridescens, ore valde elongato, disco 



