49 



b. Fossil Plants from the Clay Marl at Cliffwood, N. J. 

 A collection representing the flora of the clay marl hori- 

 zon of the New Jersey Cretaceous. This is the first col- 

 lection of fossil plants of any extent made from this hori- 

 zon, and contains a number of new species, recently de- 

 scribed before the New York Academy of Sciences. 



c. Cretaceous Molluscs from Block Island and Montauk 

 Point. 



The existence of Cretaceous strata at these localities 

 was first positively proven by means of these fossils, col- 

 lected in 1896. 



16. Fossil Fishes from the Devonian Rocks of Ohio and 



Scotland. 



Exhibited by Prof. Bashford Dean, Columbia Univer- 

 sity, New York City. 



a. Dinichthys: Vertebral column of small species (Z>. 

 goiddi '?) showing fin bases and plates of ventral shield. 

 From the Devonian of Ohio. Collected by Dr. Wm. 

 Clark. 



This specimen is of interest as showing for the first 

 time traces of an internal skeleton in an American 

 Arthrodiran. The head of a large species of this genus 

 was exhibited at a former reception of the Academy. 



b. Coccosteus : Vertebral column. From the Devonian of 

 Scotland. 



The structures in a typical European Arthrodiran will 

 enable a comparison with those of Dinichthys. 



c. Dipterus: Vertebral column and bases of unpaired fins. 

 From the Devonian of Scotland. 



These structures as represented in a contemporary 

 Lung-fish may be interestingly compared with those of 

 Coccosteus and Dinichthys. 



17. Fossil Mammals from the Tertiary Beds of the 



Western States. 



Exhibited by the Department of Vertebrate Paleon- 

 tology, Amei"ican Museum of Natural History. 



