40 ANNUAL REPORT OF THE 



1896. Calvin Collection. A large assortment of fossil fish remains, 

 chiefly Dipnoan and Chimseroid, from the so-called State Quarry Bed 

 (presumably Upper Devonian) of Johnson County, Iowa. Presented by 

 Professor Samuel Calvin. Received December 24. 



1896. Clark Collection. Second instalment of fossil Fishes from the 

 Cleveland Shale of Northern Ohio, including a figured cranium of Dinich- 

 thys intermedins and good examples of Gladodus fyleri. Purchased of Dr. 

 William Clark, Berea, Ohio. Received December 26. 



1897. Several well preserved specimens of Semionotus and Catopterus 

 from the Trias of the Connecticut Valley ; also a small collection of Green 

 River Fishes. Exchange with Boston Society of Natural History. 

 Received January 1. 



1897. A set of plaster models from the Oxford Museum, presented 

 through E. R. Lankester, Linacre Professor of Zoology. Received 

 January 13. 



1897. Casts of Palaeozoic Fishes and Amphibians, presented by Pro- 

 fessor E. D. Cope. Received January 18. 



1897. Cavern bones from New South Wales, collected on the Austra- 

 lian Expedition of 1896. Received January 26. 



1897. Vertebrae and portions of jaw belonging to type-specimen of 

 Baptanodon natans Marsh. Exchange with Professor A. S. Packard. 

 Received February 1. 



1897. Specimen of Macropetalichthys sullivanti, showing interior of 

 cranium, etc., from the Corniferous Limestone of Ohio. Exchange with 

 Professor C. H. Hitchcock. Received March 22. 



Papers Published during the Year. 



Daniel Denison Slade [Biographical Sketch of]. New Eng. Hist, and 

 Gen. Register, Vol. LI. pp. 3-14, January. 



On the Characters of Macropetalichthys. Amer. Naturalist, Vol. 

 XXXI. pp. 493-499, June. 



On Ctenacanthus Spines from the Keokuk Limestone of Iowa. Amer. 

 Journ. Sci. [4], Vol. IV. pp. 10-13, July. 



Tamiobatis vetustus, a new Form of Fossil Skate. Amer. Journ. Sci., 

 [4], Vol. IV. pp. 85-90, August. 



On the Occurrence of Fossil Fishes in the Devonian of Iowa. Ann. 

 Rep. Iowa Geological Survey, Vol. VII. pp. 108-116. 



On the Relations of certain Plates in the Dinichthyids, with Descriptions 

 of new Species. Bull. Mus. Comp. Zool., Vol. XXXI. pp. 19-44. 



