FREE INSTITUTE OF SCIENCE 



TERTIARY FAUNA OF FLORIDA 



1569 



the coquina or assisted in knitting it together. The visible part of this rock 

 is about three feet thick and the top is more or less covered with a recent jeolian 

 sand rock which is destitute of fossils or nearly so and is hard enough to ring 

 under the hammer. The specimens are mostly in very poor state, yet occa- 

 sionally one finds a tolerably perfect pseudomorph, and some of the species are 

 recognizable. The curious reproductions of the corallines, though often very 

 elegant, are not in a state to describe, so much of the original form having 

 been lost in the process. The most conspicuous fossils are the internal casts 

 of a large oyster, but Mr. Willcox and the writer succeeded in obtaining iden- 

 tifiable specimens or molds of the following species, many more species being 

 represented in a state which forbids complete identification. There are no 

 traces of any silicification in this rock, a fact which is notable on account of 

 the prevalence of such action in most of the Floridian limestones. 



LIST OF THE WHITE BEACH FOSSILS. 

 Those which are identified from other horizons are marked : C for Chipola, D for 

 St. Domingo, B for Bowden, S for the Tampa silex beds, etc. ; * recent. 



Conus demiurgus Dall, C. 



Ancilla Shepardi Dall, S. 



*Marginella limatula Conrad, S. 



Vasum haitense var. engonatum Dall, C, 



D. 

 Fasciolaria Sparrowi Emmons, C, also 



Miocene. 

 Mazzalina costata Dall, C. 

 Cypraea Willcoxi Dall, C. 

 Cyprsea pinguis Conrad, S, also Eocene. 

 Vermicularia sp. 

 Serpulorbis sp. 



Siliquaria vitis Conrad, S, also Eocene. 

 Modulus turbinatus Heilprin, S. 

 Natica (near plicatella Conrad). 



Leda sp. 



Glycimeris americana Def ranee?. 

 *Arca umbonata Lamarck, S, C. 

 *Scapharca auriculata Lamarck, B. 

 Scapharca hypomela Dall, C. 



Ostrea trigonalis Conrad, Jacksonian to 

 Pliocene. 



Ostrea trigonalis var. like procyon 

 Holmes. 



Pecten (near Burnsii Dall). 



Pecten (Nodipecten) condylomatus Dall, 

 C. 



*Pecten (Nodipecten) nodosus Linne, D. 



Pecten (Chlamys) near Kneiskerni Con- 

 rad, C. 



Pecten (Chlamys) sp. 



Spondylus bostrychites Guppy, S, D, B. 



Lima (near tampaensis Dall). 



Mytilus pandionis Dall. 



Crassatellites deformis Heilprin, S. 



Cyrena ? sp. 



Venericardia serricosta Heilprin, S. 



Phacoides, near dominguensis Dall. 



Cardium (Trachycardium) sp. 



Cardium (Trachycardium), near cestum 

 Dall. 



