86 



Sideropora, but difFers from it in the rays of the stars not being 

 produced. By the latter character, and by the number of its rays, 

 it difFers from the genus Stylaster, Gray. From Stylopora, Schweigg., 

 it difFers by the centrai style of the cells not being exserted, and by 

 the coral being solid instead of porous. 



The form of the stars is best seen at the tips of the branches, their 

 mouths becoming in the older parts so contracted as to obscure the 

 centrai style. \Vhen the coral is \vorn, the style is distinctly visible. 



1. Anthopora cūcullata. Antli. corall'io solido, ramoso ; ramis 

 compressis, subpabnatis, ad apices dilatatis rotundatis compressis ; 

 cellularum margine superiore producto, cucullato. {Anivial viri- 

 descens, Ehr.) 



Millepora alcicornis, Forsk. 



Millepora digitata, Pall. 



Porites scabra, Lam. 



Pocillopora Andreogyni, Aud. 



Porites digitata, Ehr. 



Hab. 



The details of this species given by M. Savigny in the fourth 

 Plate of the Polypes, forming part of the great work on Egypt, leave 

 little to be desired for its elucidation. 



2. Anthopora elegans. Anth. coralUo solido, ramoso; ravns 

 suhcylindricis rarissim'^ suhcompressis, altenuatis, ad apices ro- 

 tundatis ; cellulantm margine circulari. 



Porites subseriata, Ehr. ? 



Mr. Owen read a " Note descriptive of a new species of Tape- 

 Tvorm" discovered in the small intestines of the Flamingo, Phoeni- 

 copterus ruber, Linn., and to vvhich be had given the name of Tcenia 

 lamelligera when he first brought it, in 1832, under the notice of 

 the Committee of Science and Correspondence of the Society (Pro- 

 ceedings, Part II. p. 143). His principai object in again adverting 

 to the subject vvas to lay before the Meeting a series of drawings 

 which he had prepared of this remarkable Intestinal TVorm, which 

 bears generally a superficial resemblance to the Annelidous Nereis 

 lamelligera, Pall. 



Mr. Bell read a paper entitled " Observations on the Genus Cancer 

 of Dr. Leach {Platycarcinos, Latr.), with Descriptions of three New 

 Species." 



He commences by remarking on the subdivisions which the in- 

 crease of our knowledge has rendered necessary in the genus Cancer 

 as established by Linnaeus, and by giving bis reasons for preferring 

 the appropriation of that name, proposed by Dr. Leach, to the smaller 

 group comprehending the large edible Crab of our coast, rather than 

 the assigning to it the appellation of Platycarcinos, suggested by La- 

 treille ; a name vvhich, in fact, is objectionable, independently of the 

 peculiar fitness of the other, on account of the sheUs of the animals 



