400 TWENTIETH REPORT ON THE STATE CABINET. 



Cyrtoceras hercules, W. and M. sp., = Lituites her exiles, "W. and M., Mem. 

 Bost. Soc. Nat. Hist., Vol. i, pa. 102, pi. 3,f. 9. 



C. laterale. Hall 357 



C. lucillum, Hall 349 



C. orcas (Oncoceras), Hall, Geol. Rep. Wisconsin, p. 42. 1861 350 



C. pusillum, Hall 357 



C. risidum, Hall 358 



Oncoceras orcas, == Cyrtoceras 350 



Gyroceras bannisteri, W. and M., Mem. Bost. Soc. Nat. Hist., Vol. i, p. 102. 



= Trochoceras bannisteri. 301 



Phragmoceras nestor, Hall 347 & 363 



Gomphoceras marcyae, W. and M., Mem. Bost. Soc. Nat, Hist., Vol. i, pa. 101, 



pi. 3, f. 8, = G. scriniurn. Hall. 



G. scrinium. Hall, = G. marcyce 350 



G. septoris, Hall 350 



Trochoceras bannisteri, W. and M. sp., = Gyroceras bannisteri, Idem., Mem. 



Bost. Soc. Nat. Hist., Vol. i, p. 102. 361 



T. desplainense, M'C, New Pal. Fossils, pa. 68, pi. 8, f. 1. 1860 359 



T. costatum, Hall '. . 360 



T. notura, Hall 360 



Lituites cancellatum, M'C, New Pal. Fossils, pp. 67 & 96, pi. 7, f. 8. 1860. 



= Nautilus occidentalis. 

 L. capax. Hall, Geol. Rep. Wisconsin, p. 3. 1860. 



= Nautilus capax. 



L. giganteum, M'C, = Lituites cancellatum, Ibid., pp. 67, 76 & 96. 



L. hercules, W. and M., Mem. Bost. Soc. Nat. Hist., Vol. i, p. 102. 



= Cyrtoceras. 

 L. marshii. Hall 362 



L. occidentalis, Hall, Geol. Rep. Wisconsin, p. 31. 1860. 



= Nautilus occidentalis. 

 Nautilus occidentalis, Hall sp., loc. cit 863 



= Nautilus (Lituites) occidentalis, Hall, Geol. Rep. Wiscon- 

 sin, 1862, p. 441 (not Lituites undatus, var. occidentalis). 



Nautilus capax. Hall (Lituites capax, loc. cit.) 363 



CRUSTACEA. 



Acidaspis danai, Hall, = ^. ida, W. and M 333 



A. ida, W. and M., Mem. Bost. Soc. Nat. Hist., Vol. i, pa. 106, pi. 3, 



f. 13, = .^. danai. Hall. 



Bronteus acamas. Hall -. 332 



B. occasus, W. and M., Mem. Bost. Soc. Nat. Hist,, Vol. i, pa. 104, 



pi. 3, f, 12, = B. acamus. 



Calymene niagarensis. Hall, G^ol. Rep. 4tli Dist. N. T., 1843, pa. 102 and 



p. 101,'f. 3 334 



Ceraurus insignis. Hall, (= C. niagarensis) 335 



C. niagarensis, Hall 376 



Dalmania vigilans. Hall 335 & 375 



Encrinurus nereus. Hall 334 & 375 



llaenus armatus, Hall 330 



barriensis = (ioxus. Hall) 332 



cuniculus, Hall 377 



imperator. Hall 332 



insignis. Hall 331 



ioxus. Hall 378 



worthenanus, W. and M., Mem. Bost. Soc. Nat. Hist.. Vol. i, p. 105, 

 pi. 3, f. 13. = I. insignis ? and I. armatus. 



