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 Stylasier, Gray. From Stylopora, Schweigg., 

 it differs by the central 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 

 central style. When the coral is worn, the style is distinctly visible. 



1. Anthopora cucuLLATA. Autli. coralUo soUdo, ramoso ; ramis 

 compressis, suhpalmatis, ad apices dilatatis rotundatis compressis ; 

 cellularum margine superiore producto, cucullato, {^Animal viri- 

 descens, Ehr.) 



Millepora alcicornis, Forsk. 



Millepora digitata, Pall. 



Porites scabra, Lam. 



Pocillopora Andreogyni, Aud. 



Porites digitata, Ehr. 



Hah. 



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. coraUio soUdo, ramoso; ramis 

 suhcylindricis rarissimi suhcompressis, attenuatis, ad apices ro- 

 tundatis ; cellularum margine circulari, 



Porites subseriata, Ehr. ? 



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

 worm" discovered in the small intestines of the Flamingo, Phceni- 

 copterus ruber, Linn., and to which he 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 principal object in again adverting 

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

 which he had prepared of this remarkable Intestinal Worm, 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 his 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 which, in fact, is objectionable, independently of the 

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



