246 



TRANSACTIONS OF THE 



State, which I heretofore considered as Turbinolia, into 

 the genus Cyathophyllum. I found nevertheless two spe- 

 cies which I consider as belonging to the genus Turbi- 

 nolia,the one approaching the T. mitrata^ and the other 

 the T. cuneata, Gold fuss. 



Turbinolia mitrata is inverted, conical, with a bent 

 base ; the lamellae are thin and externally grown together, 

 forming only shallow ribs ; these lamellse are covered with 

 projecting points, by which they are in contact with one 

 another. 



They are calcareous, and occur associated with the 

 above described Hamites, bivalve shells and spirifer, in 

 the same locality. 



Turbinolia cuneata, Goldfuss. 



It is compressed, and has an obtuse base. The lamel- 

 lse are thicker on the outside, and grown together, to 

 form a compact cover for the deep intermediate spaces 

 of the star. These lamellse become thinner in the inte- 

 rior, where two of them grow together, forming a single 

 one. They reach alternately a grate-shaped partition, 

 which runs longitudinally through the middle of the star. 



It is found in the same locality as the preceding, asso- 

 ciated with the same fossils ; also, in the lower stratum, 

 associated with encrenites. 



Cyathophyllum ceratites, Goldfuss. 



These organic remains form a single, free, inverted 

 conical, horn-shaped stem, curvated at the base. The 

 young are externally more or less smooth, or indistinctly 

 longitudinally striated ; but the old and larger ones ex- 

 hibit longitudinal striae, protuberant transversal rings, 

 and a loose border of prolifying cells. The cup-shaped 

 terminal cell has an extended border, and numerous uni- 

 form and more or less notched lamellae. 



The description given by Goldfuss is applicable to our 



