198 Twenty-fourth Report on the State Museum. 



Cyathocrinus (Yasocrinus) valens Lyon. 



Cyathocrinus (Yasocrinus) n. sp. 



Rhodocrinus Hallii Lyon. 



Platycriniis Leai Lyon. 

 > Codaster alternatus Lyon. 

 >( Xiicleocriniis augularis Lyon. 

 )C Niicleocriniis Yerneuilii Troost. 

 ^ Nucleocrinus elegans ? (n. sp. ?) 



Elentherocrinus Gassed ay i Yandall <& Shuinard. 

 y. Anchyrocrinus spinosus Hall. 



Brachiopoda. 



/ Lingula siibspatulata M. <& W. 



y Orthis livia Billings. Orthi^ o-ana\2mi,}{an 



/ Orthis- sp? joropin^jicL^ 



y Strophomena rhomboidalis Wahl. 



y Strophodonta inequistriata Conrad. 



y Strophodonta demissa Conrad. . 



X Strophodonta hemispherica LLall. 



y Strophodonta perplana Conrad. . , T . i .2^^^ 



X ChoLtes acuMata Hall. ^ Sh^fr^h^^^kv. .^rf..?ora«?- 



y Chonetes Yandellana Llall. 



Pro<kietella stibaculeata * Murchison. 

 >Productella subaculeata var. cataracta. 

 % Spirifera acuminata Conrad. 

 y Spirifera arctisegmenta Llall. 

 X Spirifera duodenaria ? LLall. 



X Spirifera euruteines Owen. g . 



X Spirifera fimbi-iata Cmsad. Ot^^ -^'^ dt^^^^ ^» ^ TiruJAJA 

 X Spirifera gregaria Clajyp. ; 

 < Spirifera medialis LLall. ^ 



X Spirifera Oweni LLall. 



X. Spirifera raricosta Conrad ^= 8. undulata Yanuxem. 

 X Spirifera segmenta LLall. 

 y Spirifera varicosa Conrad. 

 X Cyrtina cra&sa Hall. 

 XCyrtina Hamiltonise LLall. 



* There may be some doubt regarding the identity of this form with P. gubaculeata, and the 

 varietal name P. cataracta is, therefore, proposed. See Pal. N. Y., vol. FV, pp. 154, 155, etc., for 

 diBCusBJon of the relatione of this and allied forme. 



