FROM HALDON. 



29 



The exotheca is inclined and very strongly developed. 



Height of the corallum, 1^ to 1^ inch. Length of the calice, 2^ to 3-^t\\ inches. 

 Breadth of the calice, ^ths to 1 i^jth inch. 



LocaUti/. Haldon. In the Collection of William Vicary, Esq., F.G.S., Exeter. 



This fine species is strongly Placosmilian, and might be taken as the type of the 

 genus. 



Genus — Peplosmilia. 



Peplosmilia depressa, E. cle Fromentel. PI. X, figs. 8 — 10. 



The corallum is not very tall, and shows traces of epitheca. 

 The calice is shallow and round. 



The septa are well developed and thin. There are more than four cycles, and 

 probably a fifth exists in full-grown individuals. 

 The columella is very thin and narrow. 

 Height, \ inch. Breadth of calice, ^ths inch. 



Locality. Haldon. In the Collection of William Vicary, Esq., F.G.S., Exeter. 



M. de Fromentel, ' Pal. Fran?., Terr. Cret.,' pi. 46, fig. 1, 1863, and page 241, 

 states that his specimens came from the Upper Greensand of Mans. 



The specimen from Haldon is fragmentary, and its columella is defective, but it is 

 so like M. de Fromentel's dehneation oi Peplosmilia depressa that there is no doubt about 

 its being of that species. 



Division — AsTRiEACEiE. 



Genus — Astrgcosnia . 



Astroc(ENIa decaphylla, Ed. and 11. PI. XI, figs. 1 — 6. 



This species, described by MM. Milne-Edwards and Jules Haime ('Ann. des 

 Sci. nat.,' 3me serie, t. x, p. 298, 1849) was subsequently named Astrcea reticulata by 

 D'Orbigny (1850), and was noticed as Astrocoenia magnifica by Reuss in his great work 

 on the Corals of Gosau (' Denkschr, dcr Wien Akad. der AVissensch.,' t. vii, p. 94, pi. ^. 

 figs. 4—6, 1854). 



Reuss's admirable delineation of the species enables the British form to be recognised 



