BRACHIOPODA. 195 



Genera (l)WILSONIA (Quenstedt), Kayser, 1871;(2)UNCINULUS, 

 Bayle, 1878; (3) U N C I N U L IN A, Bayle, 1878 ; (4)HYP0THy' 

 RIS (McCoy), King, 1850. 



PLATES LVIII, LX. 



Terebratula, J. Sowbrbt. Mineral Concholog-y, vol. ii, p. 38, pi. cxviii, fig. 2. 



Ancnnileg, Wahlb.nbeeq. Nova Acta Reg-. See. Upsal, p. 67. 



Terebratula, Dalman. Kongl. Vetenskapa. Akad. Handling., p. 139, pi. iv, fiy. 1. 



Terebratula, von Boch. Ueber Terebrateln, p. 47. 



Terebratula, von Buch. Deber Terebrateln, p. 68, pi. xi, figs. 29, a, h. 



Terebratula, J. db C. Sowerby. Silurian System, p. 615, pi. v, fig. 21 ; pi. vi, fig. 7. 



Alrypa, J. db C. Sowbbby. Trans. Geol. Soc. London, 2nd ser., vol. v, pi. Ivi, fig. 24 ; 



pi. Ivii, figs. 5, 6. 

 Atrypa, Phillips. Pateoz. Foss. Coniwall, Devon and West Somerset, p. 84, pi. xxxiv, 



fig. 150. 

 Atrypa, Vandxem. Geology of N. Y. ; Rept. Third Dist., p. 163, fig. 1. 

 Atrypa, Hall. Geology of N. Y. ; Rept. Fourth Dist., p. 215, fig. 1. 

 Terebratula, F. Robmeb. Veratein. rhein. Uebergangsgeb., p. 65. 



Terebratula, db Vbr.vedil. Geol. de la Russ. et des Mont, de I'Oural, p. 87, pi. x, fig. 8. 

 Hypothyris, King. Annals and Magazine of Natural Histoi-y, vol. xviii, p. 28. 

 Atrypa, McCoy. Synopsis Siluiian Fossils of Ireland, p. 42. 



Hypothyrli, Phillips and Salter. Mem. Geol. Surv. Great Britain, vol. ii, pt. 1, p. 282. 

 Hemithyris, d'Obbmjiy. Prodrome de Paleontologie, p. 92. 

 Hypothyris, Ki»o. Permian Fossils of England, p. 111. 



Rhynchonella, Davidson. Annals and Magazine of Natural History, 2nd ser., vol. ix, pi. xiii. 



Rhynchondla, The Sandbbrgers. Verstein. des rhein. Schicht. Syst. Nassau, p. 43, pi. xxxiii, 



fig. 12. 



1853. Rhynchonella, Schndb. Beschr. der Eifel. Brach., p. 185, pi. xxv, fig. 5; p. 187, pi. xxvi, 



fig. 3 ; p. 239, pi. xlv, tig. 4. 



RhynchoTuila, Hall. Tenth Ann. Rept. N. Y. State Cab. Nat. Hist., p. 66, figs. 1-7 ; p. 68, 



figs. 1-3. 

 Jthynchonella, F. Schmidt. Archiv (lir Naturk. Liv., Esth., und Kurlands, vol. ii. p. 210. 

 Rhynchondla, Hall. Palseontology of New York, vol. iii, pp. 25-28, 30, pi. xxix, fig. 4 ; 



pi. XXX, figs. 1, 2 ; pi. xxxi, figs. 1-3 ; pi. xxxiii, figs. la-p. 

 Rhynchonella, F. Roembr. Silur. Fauna des Westl. Tennessee, p. 72, pi. v, fig. 14. 

 Rhynchtmella, Hall. Canadian Naturalist and Geologist, vol. v, No. 2, p. 146. 

 Rhynchonella, Davidson. Bril. Silurian Brachiopoda, pp. 167-173, pi. xxiii, figs. 1-14. 

 Rhynchonella, Hall. Paljeontology of New York, vol. iv, p. 346, pi. liva, figs. 24-43. 

 Rhynchonella, Davidson. Brit. Silurian Brachiopoda, p. 166, pi. xxi, figs. 1-6, 28. 

 Rhynchonella, de Vebneuil. TchihatchefTs Asie Mineure, Paleontologie, pp. 9, 468. 

 Terebratula, (Juenstedt. Petrefactenk. Deutsch.; Brachiopoden, p. 193, pi. xlii, figs. 19-48. 

 Terebratula, Quenstedt. Petrefactenk. Deutsch.; Brachiopoden, pi. xlii, figs. 15-18. 

 Rhynchonella, Kayser. Zeitschr. der deutsch. geolog. Gesellsch., vol. xxiii, p. 502, 

 Rhynchonella, Kayser. Zeitschr. der deutsch. geolog. Gesellsch., vol. xxiii, pp. 507-515, 

 pi. ix, figs. 3, 4. 

 (4) 1877. Rhynchonella, Hall and Whitfield. Geolog. Expl. Fortieth Parallel, vol. iv, p. 247, pi. iii, 

 figs. 4-8. 



•The citations are numbered to correspond witli tlie generic titles. 



