1863.] DUNCAN WEST INDIAN CORALS. 433 



granular, the septa less equal, and the calices not quite so elevated 

 (little as they are) as in the form depicted by Michelin (Zooph. pi. 71. 

 fig. 3) and described by Edwards and Haime (Recherches, p. 304). 

 There is not, however, a specific difference between the San-Domingan 

 form and that from Martigues. It is with doubt that Edwards and 

 Haime call this a Pkyllocoenia, and certainly the San-Domingan form 

 has some very strong Eusmilian features, and one very indecisive 

 Astraean peculiarity. Diameter of the calices hardly ^ inch. Height 

 of the coral from \ to | inch. 



Erom the Nivaje shale. Coll. Geol. Soc. 



12. Phylloccenia limbata, spec. nov. 



Corallum in the shape of Stylina limbata, Edwards & Haime. 

 Stem large and cylindrical. Corallites numerous, irregularly placed. 

 Calices separated by much ccenenchyma, circular and but slightly 

 elevated. Costae covering much surface, slightly dentate where they 

 approach, and turning aside from those of other calices ; they are 

 not continuous, not very prominent, and slightly granular. Septa 

 not projecting far inwards, laminae granular ; their upper margin is 

 neither incised nor dentate ; in six systems of generally three cycles, 

 though occasionally of four. Primary septa largest. Columella rudi- 

 mentary. Endotheca abundant. Diameter of calice, with costae, 

 ■i- inch. 



The deficient columella is the only point in which this species 

 differs from Madrepora limbata, Goldfuss, which has been determined 

 by Milne-Edwards to be a Stylina. 



Erom the yellow shale of San Domingo. Coll. Geol. Soc. 



13. Montlivaltia pondekosa, Edwards &Haime. PI. XVI. figs. 6a, 6b. 



Thecophyllia ponderosa, Edwards & Haime. 

 Turbinolia Deucalionis, Duchassaing. 



Erom the shales of St. Domingo. Brit. Mus. Guadaloupe and Ja- 

 maica ; also Travancore in Southern India. Coll. Geol. Soc. 



The description of this great Coral, whose synonyms have arisen 

 from the description of defective specimens, is given with the Ja- 

 maican Corals, p. 441. It is to be noticed that the San-Domingan 

 specimens are young, but are better preserved than that drawn by 

 Milne-Edwards in the plates of the ' Hist. Nat. des Corall.' I have 

 also examined a specimen from Travancore. 



14. M^andrina filograna, Lamarck. 



A figure of this Coral was given by Michelin (Zooph. pi. 14. fig. 7), 

 and described as a Supracretaceous fossil. Milne-Edwards and 

 Haime add to the above notice that the specimen is not a fossil. The 

 species is East Indian ; and if the Madrepora filograna (Esper, 

 Pflanz. t. i. p. 139, pi. 22, 1791) be received as a Mceandrina, there 

 is proof of a West Indian habitat. 



From the San-Domingan shale (Coll. Geol. Soc.) ; recent in the 

 East Indian and American seas. 



