PLATE 76. 



Fig. 1. 334. L Favistella stellata. (Pag. 275.) 



1 «. A fragment ol this coral, showing a vertical section, with an oblique section of the extremities of the 



tubes. 

 1 i. A transverse section of the cells, showing the starlike extremities. 



1 c. An enlarged view of the extremities of several cells. 



Fig. 2. 101. 2. Ch^etetes lycoperdon. (Pag. 276.) 



2 a, b. The bases of two hemispherical forms, where the tubes have a barely perceptible extension. 

 2 c. A fragment of a ramose form, one of the largest occurring. in this group. 



2 d. A subhemispheric form, which commenced its growth upon the column of a crinoid. 



2 e. A fragment of stone, with several ramose forms associated with a crinoidal column, a small Murchuonia 



and Orthis testudinaria. 

 2/. Magnified section of a ramose form, showing the columns to be nearly parallel to the axis of the specimen. 



Fig. 3. 335. 1. DiscoPHYLLTJM peltatitm. (Pag. 277.) 



Fig. 4. 336. 1. {U7tdetermi7ied.) (Pag. 277.) 



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