Xn (A).-DEPARTMENT OF INVERTEBRATE FOSSILS, PALEOZOIC. 



By C. D. w.\i « oi i, Honorary Curator. 



ADDITIONS TO TIIE COLLECTIONS. 



The most important addition is that of Devonian and Carboniferous 

 fossils from the U. S. Geological Survey collections. Many of the speci- 

 mens are types of new species, and the collection is the original one 

 upon which the Paleontology of the Eureka District, Nevada, is based. 

 (Monog. VIII, U. S. Geol. Surv.) 



Another collection transferred from the Survey contains a valuable 

 and extensive series from the Hamilton group at Moravia, N. Y. 



Lists of the species in the above collections will be found in the ap- 

 pendix. 



The smaller accessions are: 



One block of Lower Carboniferous limestone with two beautiful speci- 

 mens of Scaphiocrinus sp. ? from Capt. George M. Wheeler, U. S. A. 



From the Hamilton group at Widder, Ontario : Actinozoa, 16 species; 

 Brachiopoda, 4 species; Gasteropoda, 1 species; Pteropoda, 1 species; 

 Annelida, 1 species ; received from Mr. C. D. Walcott. 



By exchange with the Sayre Female Institute, of Lexington, Ky., the 

 following species of fossils from the Hudson River group of Ohio and 

 Kentucky were received : 



Trematospira quadriplicata. 

 Zygospira modesta. 

 lihynchonella capax. 

 Cyclora minuta. 

 Murchisonia Bowdeni. 



Buthotrephis gracilis. 

 Olimacograptus bicornis. 

 Crania scabiosa. 

 Orthis insculpta. 

 Strophomena alternata. 

 Strophodonta planumbona. 



A return exchange was prepared of 14 species of Devonian and 15 

 species of Carboniferous fossils. 



From Mr. L. A. Cox, of Keokuk, Iowa, a beautiful specimen of Donj- 

 crinus M%$8%8S%ppiensis was received, and also casts of the following 

 species of Crinoids from the Keokuk limestone : 

 Agaricocrinus Amerieanus. Dorycrinus Mississippiensis. 



Agaricocrinus Wortheni. Onychocrinus exculptus. 



1 ta rycrinus Hercules. 

 Barycrinus spurius. 

 P>a rycrinus tumidus. 

 Batocrinus biturbinatus. 



Synbathocrinus Swallovi. 

 Taxocrinus Wortheni. 

 Zeacrinus Coxanus. 



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