AS* 





INVERTEBEATE PALEONTOLOGY. 



CRETACEOUS SPECIES. 



RADIATA. 



POLYPI. 



ACTINARIA. 



FUNGIIDiE. 



Genus MICRABACIA, Edwards and Haime. 



Synon—Cyclolites, Wm. Suiitli (181G), Strata identified by Org. Foss., 15 (not Lam.). 



Fungia (sp.), Goldf. (1826), Petref. Germ., I, 5— F. A. Roemer (1840), Die Verst. des Nord. Kreid., 



25 (not Lam.). 

 Micrahacia, E. &. H. (1849), Coinptes rendus. XXIX, 71 ; and (1653),Introd. Brit. Foss. Corals, xlvii. 



Etym. — /uicpoc, small ; «/iaf ?, a table, or counting-board. 

 Type. — Fungia coronula, Goldf. 



Corallum simple, lenticular or plano-convex ; septa not extremely numer- 

 ous ; walls not echinate, and perforated in a regular manner (E. & H.). 



This very small group of fungiod corals only includes two known species, 

 one of whicTi — the type of the genus — occurs in the Middle Cretaceous of 

 Europe, and the other in the Upper Cretaceous of America. 



nicrabacia Americana, m & h 



Plate 28, figs. 1, a, b, c, d. 



Micrahacia coronula. Meek and Hayden (Oct. 1860), Proceed. Acad. Nat. Sci. Pbilad., 430 (not 31. coronula, 



Edwards and Haime. 1850). 

 Micrabacia Americana, Meek (18G4), Smithsonian Cbeck-List N. Am. Cret. Fossils, 2. 



Corallum small, subplano-convex, or slightly concave below, and convex 

 with a rather deep central depression above. Intercostal foramina of the 

 1 H 



