BRACHIOPODA. 231 



Genus CONCHIDIUM, Linne. 1753. 



PLATES LXIV, LXV, LXVI, LXVn. 



1753. Ccmchidium, LinniJ. Museum Tessinianum, p. 90, pi. v, figs. 8, a, b. 



1766. Helmintholitws, Linne. Systema Naturae, ed. xii, vol. iv, p. 163. 



1793. Anomites, Hisi.voer. Minerograph. Anmerkning. ofver Goltland ; Vet. Akad. Handling, p. 285. 



1813. Pentamerus, Sowerby. Mineral Conchology, vol. i, p. 73, pis. xxviii, xxix. 



1828. Qypidia, Dalman. Kongl. Vetenskaps Akad. Handlingar, pp. 93, 100. 



1839. Pentamerus, Sowerby. Murchison's Silurian System, p. 615, pi. vi, figs. 8a-e. 



1841. Pe7jto;ner(M, HisiNGER. Lethsea Suecica, p. 74, pi. xxi, figs. 10 a-e. 



1843. Pentamerus, A. Roemer. Die Versteinerungen des Hai-zgebirges, pi. iv, fig. 16. 



1845. Pentaiiwrus, de Verneuil. G6o1. de la Russie et des Mont, de I'Oural, vol. ii, jip. 113-118, 



))1. vii, figs. 1-3. 



1850. Peittamerus, A. Roemer. Beitr. zur geolog. Kenntn. der nordwest. Harzgeb., p. 59. 



1852. Pentamerus, Hall. Palaeontology of New York, vol. ii, p. 341, pi. Ixxix, figs. 1, 2. 



1854. Pentamei-us, Davidson. Introd. British Foss. Brach., p. 97, pi. vii, fig. 116. 



1854. Pentamerus, Grdbnbwaldt. Memoirea Sav. fitrang. Acad. Imp. Sci. St. Peterabourg, vol. vii, 



p. 26, pi. iv, fig. 15. 



1855. Pentamerus, Conrad. Proc. Acad. Nat. Sci. Philadelphia, vol. vii, p. 441. 

 18C0. Pentamerus, Lind.str6m. Gotland's Brachiopoden, p. 3')5. 



1860. Pentamerus, Emmons. Manual of Geology, p. 107, figure. 



1861. PentameTTis, BihUSOB. Canadian Journal, vol. vi, p. 269. 

 1863. Pentamerus, Billings. Geology of Canada, p. 337, fig. 341. 



1867. Pentamerus, Hall. Twentieth Ann. Rept. N. Y. State Cab. Nat Hist., p. 373, pi. xiii, figs. 22-24. 

 1867. Pentamerus, Hall. Palaeontology of New York, vol. iv, pp. 369-374. 



1867. Pentamerus, Davidson, British Silurian Brachiopoda, p. 142, pi. xvi, figs. 1-3 ; pi. xvii, 

 figs. 1-10 ; pi. xix, fig. 3. 



1871. Antirliynchonella, Pentamerus, <imTiSTKWi. Petrefactenkunde Deutschlands ; Brachiopoden, i).231, 



pi. xliii, figs. 36-39. 



1872. Pentamerus, Hall and Whitfield. Twenty-fourth Ann. Rept. N. Y. State Mus. Nat. Hist., 



pp. 184-186. 

 1875. Pentamerus, Hall and Whitkield. Twenty-seventh Ann. Rept. N. Y. State Mus. Nat. Hist., 



1)1. X, figs. 1-12. 

 1879. Pentamerus, Emerson. Geol. Frobisher Bay ; Hall's Arctic Exped., App. Ill, p. 578. 



1879. Pentamerus, Barrandb. SyatSme Silurien du Centre de la Boheme, vol. v, pi. xx, figs. 9-14 ; 



pi. xxi, figs. 10-13 ; pi. xxiv, fig. 8 ; pi. Ixxix, figs. 1-3. 



1880. Pentamerus, Anoelin and Lindstr6m. Fi-agmenta Silurica, p. 24, pi. xx, figs. 1-29. 



1881. Zdimir, Barrandb. Systfeme Silurien, vol. vi, p. 171, pi. ccxcii, figs. 17-20. 



1882. Pentameriui, Whitfield. Geology of Wisconsin, vol. iv, p. 314, pi. xxiii, figs. 1, 2. 



1886. ffypidia, Ulrich. Contributions to American Palaeontology, vol. i, p. 28, pi. iii, fig. 2. 



1887. Conchidium, CEhlert. Fischer's Manuel de Conchyliologie, p. 1311, fig. 1097. 



1888. Pentamerus, Novak. Zeitschr. der deutsch. geolog. Gesellsch., vol. xl, p. 588. 



1889. Pentamerus, Nbttblroth. Kentucky Fossil Shells, pp. 53, 55, 57, 60, pi. xxvii, figs. 14-16 ; 



pi. xxviii, figs. 1-8 ; pi. xxix, figs. 1, 2, 17. 



1890. Pentamerus, Gaoel. Brach. der camb. und silur. Geschiebe im Diluv. der Provinz. Ost- und 



Westpreusaen, pp. 53, 54, pi. iv, figs. 2-4. 



1891. Pentamerus, Whiteavbs. Canadian Record of Science, p. 295, pi. iii, figs. 3, 4. 



1892. Pentamerus, R. Etheridqb, Jr. Pentameridae of New South Wales, ; Records Geol. Survey 



N. S. W., vol. viii, pt. ii, p. 49, pi. x, figs. 1-8 ; pi. xi, figs. 1-4, 10-12. 

 1892. Pentamerus, Millbb. Seventeenth Ann. Rept. State Geologist Indiana, p. 687, pi. xiii, figs. 5, 6. 



