HETEROPORA. 209 



4. Heteropora capilliformis (Michelin). 



SYNONYMY : 



Chcetetes capilliformis, Michelin, 1844, Icon. Zooph. p. 112, pi. xxvi. fig. 2. 

 Polytrema D'Orbigny, 1849, Prod. Pal. t. ii. p. 41. 



Reptomulticava ,, D'Orbigny, 1852, Pal. fran9. Terr. cret. t. v. p. 1033. 



,, ,, Pictet, 1857, Traite Pal. ed. 2, t. iv. p. 158. 



Heteropora ,, Haime, 1854, Bry. jurass. : Mem. Soc. geol. France, 



ser. 2, t. v. p. 212. 

 ,, ,, Etallon, 1862, Etud. Haut-Jura Cor.: Mem. Soc. Emul. 



Doubs. ser. 3, t. vi. p. 213. 



Chcetetes polyporus, Quenstedt, 1852, Handb. Petref. p. 643, pi. Ivi. fig. 55. 

 Heteropora capilliformis, Pillet and Fromentel, 1875, Geol. Lemenc. : Mem. 

 Acad. Sav. ser. 3, t. iv. p. 148. 



Diagnosis. Zoarium massive; generally in hemispherical or 

 ovoid masses. Fixed by a broad flat base, covered by epitheca. 

 Surface covered by raised, irregular, cerebriform ridges and valleys. 

 Zooecia very long, straight, and thin, so that broken surfaces 

 resemble Chcetetes. Mesopores numerous ; irregular in distribution. 



DISTRIBUTION. 



ENGLAND : 



Inferior Oolite : Gloucestershire. 

 FOREIGN : 



Corallian : Nievre ; Tonne ; Dep. de la Meuse. 



Diceratian: Valfin, Haute -Saone. 



Bathonian : Ranville. 



LIST OF SPECIMENS. 



D. 1846. Inferior Oolite. Gloucestershire. Holl Coll. 

 B. 4887. Loc.? Holl Coll. 



D. 2213. Bathonian. Ranville. Tesson Coll. 



5. Heteropora oviformis, Gregory, 1896. 



SYNONYMY : 



Heteropora oviformis, Gregory, Rev. pt. vi. : Ann. Mag. Nat. Hist. ser. 6, 

 vol. xvii. p. 295. 



Diagnosis. Zoarium small, free, ovate masses. Zooecia short. 

 Surface of zoarium covered with large, scattered pustules. 

 Mesopores few. 



p 



