BIBLIOGRAPHY OF PALAEOZOIC CRUSTACEA. 251 



Worthen (A. H.) Description of two new species of 

 Crustacea, fifty-one species of mollusca, and three species 

 of Crinoids from the Carboniferous formation of Illinois 

 and adjacent States. 



In Bull. No. 2, state Mus. Nat. Hist. Illinois, 1884. 

 Colpocaris chesierensis n. sp. Solenocnris st. ludovki n. sp. 

 See also Meek (F. B.) and Worthen (A. H.) 



Geology and Palaeontology of Illinois, vol. 7, 



Springfield, 1890, pp. 728. Appendix of 152 pp., 78 pis. 



SoIeHocaris Kt. ludovki Worthen. Colpocaris chesterends Worthen. 



Wyatt-Edgell (H. G.) On the genera of Trilobites 

 Asaphus and Ogygia, and the subgenus Ptychopyge. 



In Geol. Mag., vol. 4, 1867, p. 14. 



The author illustrates the foUowins; species: Asaphus ( Ptychopyije) 

 corndensis Murch. Oyygia scutatrlx Salt. Asaphus tyrannus Murch. 

 0(/ytjia peltata Salt. 



The English species of these genera are arranged as follows: 



Asaphus (Basilkus) tyrannus Mnrch., A. (B.) peltastes ^alt., A. (B.) 

 powisii Murch., A. (B.) marstoni Salt., A. ( B . ) latkostatus TslcGoy , A. (B.) 

 radiatus Salt. 



Asaphus (Ptychopyge) corndensis Murch. 



Asaphus ( Isotelus) (figas Dekay, A. (I.) ajfinls McCoy, A. (I.) homfrayi 

 Salt. 



Asaphus ( Brachaspis) recti/rons Salt. 



Asaphus (Cryptonymus) scutalis Salt. 



Ogygia buchii Bi'ong., 0. var. convexa, O. var. angustissima, 0. scutatrlx 

 Salt., 0. peltata Salt., 0. selwynii Salt., O.? hydrida Salt. 



Young (J.) Descriptive notes of several new and 

 rare forms of Entomostraca. 



In Trans. Geol. Soc. Glasgow, vol. 5, pt. 2, 1877. 



On new forms of Crustacea from the Silurian 



rocks at Girvan. 



In Proc. Nat. Hist. Soc. Glasgow, vol. 1, pt. 1, 1868, p. 169; also in 

 Proc. Royal Phys. Soc. Edinburgh, vol. 4, 1878, p. 167, pi. 1. 

 Solcnocaris n. g. (not Solenocaris Meek), S. solenoides n. sp. 



Zenker (J. C.) Beitrage zur Naturgeschichte der 

 Urwelt. Organische Reste (Petrefacten) aus der Alten- 

 burger Braunkohlen-Formation, dem Blankenburger 



