8 PKOCEEDINGS OF THE GEOLOGICAL SOCIETY. [NoV. 9, 



2. Heliastr^a ExsctTLPTA, Eeuss. 



Localities : Mount Hindmost, Trout Hall, and Cupuis, Jamaica ; 

 Gosau and St. Wolfgang, Exu'ope. 



3. Heliaste^a cyathifoemis, spec, nov, PL I. fig, la, lb. 



The corallum is cyathiform, and flat on the upper surface. The 

 calices, which are small and often placed in regailar lines, cover all 

 the surface ; they are distant, have shallow fossae, and are shghtly 

 prominent. The septa are small, consisting of three cycles in six 

 systems ; the primary have a paliform tooth, and are larger than 

 the secondary, whilst the tertiary are very small. The columella is 

 small and papillary. The costse are subequal, frequently long, and 

 often touch those of other calices ; they are occasionally flexuous, and 

 generally granular in the intercalicular spaces. Intercalicular spaces 

 large, and covered by large granules. Diameter of calices from yig- 

 to -jljj-inch. 



Locality : Trout Hall, Jamaica. 



4. Cyathoseris Haidingeei, Eeuss. 



Localities : Upper Clarendon clistrict, Jamaica ; Gosau, Europe. 



5. PoRiTEs Reussiana, spec. nov. PL I. fig. 2. 



The corallum is in more or less cylindrical branches, which leave 

 the stem at an acute angle, and are often flattened and always rugged 

 and gibbous. The calices are large, irregular in size, and shallow. 

 The columella is small, and there are sometimes more than the six 

 distinct pali. The septa are from eight to twenty-four in number. 

 Diameter of calices often yL inch ; that of the branches from -^ to 

 i-| inch. 



Locality : Upper Clarendon district, Jamaica. 



6. Paracyathus, sp. 



The specimens are fragmentary, but appear to belong to P. ca- 

 ryopliyllus, Lamarck, sp., of Sheppey and Bracklesham. Yallahs 

 Valley Black Shale, Jamaica. 



7. Stylophora contorta, Leymerie, sp. 



A common coral in the Black Shale of Port Maria, Jamaica. It 

 also occurs at La Palarea and in Sinde. 



8. Stylophora contorta, var. 



A variety with thick septa is found at Port Maria, 



9. Stylocoenia emaeciata, I/amarck, sp. 



The specimen has a greater resemblance to those from Sinde than 

 from elsewhere. Localities : Bracklesham, Paris Basin, La Palarea, 

 Sinde, and Port Maria, Jamaica. 



10. Flabellum exarattjm, spec, nov, PL I. fig. 3, 



The coral is simple, flabelliform, shghtly curved in the plane of 



