XII (^) -DEPARTMENT OF INVERTEBRATE lOSSILS, PALEOZOIC. 



IJy C D. Wai.cott, Honorary Curator. 



ADDITIONS TO THE 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 

 u])on 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 Ibund in the ap- 

 pendix. 



The smaller accessions are: 



One block of Lower Carboniferous limestone with two beautiful sped' 

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



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

 Brachiopoda, 4 species; Gasteropoda, 1 s[)ecics; 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. 

 Khynchonella capax. 

 Cyclora minuta. 

 Murchisonia Bowdeni. 



Buthotrephis gracilis. 

 Climacograptus bicornis. 

 Crania scabiosa. 

 Orthis insculpta. 

 Strophomena alternata. 

 Strophodonta planumboua. 



A return exchange was prepare<l of 14 species of Devonian and 15 

 species of Carboniferous fossils. 



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

 crinus Mississippicnsis was received, and also casts of the following 

 species of Criiioids from the Keokuk limestone: 



Agaricocrinus Americanus. 

 Agaricocrinus Wortheni. 

 Barycrinus Hercules. 

 Barycrinus spurius. 

 Barj^crinus tumidus. 

 Batocrinus ])iturbiuatus. 



Dorycrinus Mississippicnsis. 

 Onychocrinus exculptus. 

 Synbathocrinus Swallovi. 

 Taxocrinus Wortheni. 

 Zeacrinus Coxanus. 



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