BRACHIOPODA. 281 



Genus 11 A F I N E S Q U I N A, gen. nov. 

 LfiPiMiNA ;uid Strophomena of most authors. 



PLATE VIII, FIGS. 1-U ; PI-.ATE IXa, FIGS. 1, i, 4; AM) PLATE XVa, FIGS. '(7, .M, ffl(?|. 



1838. Leptcena, Conkad. Second Ann. Rept. N. Y. Geolog-ical Survey, p. 1 ir>. 



1839. Strophomena, Conrad. Third Ann. Rept. N. Y. Geoloffical Survey, pp. 03, 61. 



1840. Sti-oplurinena, Conkad. Fourth Ann. Rept. N. Y. Geological Survey, p. 201. 



1841. Stropkmntna, Conrad. Fifth Ann. Rept. N. Y. Geological Survey, p. 37. 



1842. Strop}i(»nena, Conrad. Jour. Acad. Nat. Sci. Phil., vol. vnii. p. 254, pi. xiv, fig-. ."> ; pp. 2,")9, 260. 

 1842. Stroplwiiitna, Va.noxkm. Geological Rdpt. Third Dist. N. Y., p. 46, tig. 2. 



1842. strophomena, Emmons. Geol. Rept. Second Di.st. N.Y., p. 3S9, fig. 2 ; p. 395. fig. 3 ; p. 403, tig. 3. 



1843. Orthiii, de Ca.stelnau. Essai sur le Systerae Silurien <le rAnicriciue .^eptontrionale, jjp. 37, 38, 



pi. xiv, figs. 1, 6. 



1844. Strophomena, Owen. Geol. Expl. Iowa, Wiscon.sin. and Illinoi.s, pi. xvi, fig. 8 ; pi. xvii, fig. 6. 

 1847. Leptmna, Hall. Paleontology of N. Y., vol. i, p. 19, pi. iv (bi.s), fig. 2 ; p. 20, pi. iv (bis), tig. 3 ; 



p. 102, pi. xxxi, fig. 1, pi. xxxiA, tig. 1; pp. 106, 107, pi. xxxiA, figs. 2, 3; 



p. 109, pi. xxxi B, fig. 1 ; p. 115, pi xxxi n, fig. 8 ; p. 286, pi. Ixxix, fig. 2. 

 1852. Lept^nn, Hall. Paleontology of N. Y., vol. ii, p. 62, pi. xxi. tig. 6. 

 1856. Strophomena, Billings. Canadian Nat. and Geol., vol. i, p. 214, tig.^. 3, 4. 

 IS.oS. Stroph'imena, Rooers. Geology of Pennsylvania, vol. ii, p. 817, fig. 591 ; p 818, tig. BOO. 

 1859. Strophomena, Hall. Twelfth Rept. N. Y. State Cab. Nat. Hist., p. 70. 



1859. Stro2)homena, Billings. Canadian Nat. and Geol., vol. iv, p. 443. 



1860. Strophomena, Billings. Canadian Nat ami Geo!., vol. v, pp. 51-54, tig. 1. 



1862. Strophomena, Billi.vgs. Paleozoic Fossils, vol. i, pp. 117, 118, fig. 97; pp. 119, 128, fig. 106. 



1863. Strophomena, Billings. Canadian Geology, Repoi-t of Progress, p. 163, fig. 140; pp. 141, 209. 



fig. 208. 



1865. Strophomena, Shaler. Bulletin Mns. Comp. Zoology, No. 4, p. 82. 



1868. Strophomeiia, Meek and Worthen. Geological Survey of Illinois, vol. iii, p. 335, pi. iv, fig. 11. 



1871. Strophomena, Davidson. British Silurian Brachiojioda, p. 285, pi. xlii, figs. 20, 21 ; p. 292, pi. xlii, 



figs. 1-5 ; pi. xxxix, figs. 22-24 ; p. 296, pi. xxxvli, figs. 23-26 ; pi. xlii, 

 figs. 6-8 ; p. 383, pi. xfii, figs. IS, 19 ; i>l. xlvii, figs. 1-4 ; pp. 310. 311, 

 ■pi. xlii, fig. 11 ; pi. xliii, fig. 15; p. 312, jil. xiv, tigs. 1-10. 



1873. Strophomena, Meek. Paleontology of Ohio, vol. i, pp. 88-91, \>\. vii. 



1874. Strophomena, Miller. Cincinnati Quart. Jour. Sci., vol. i, p. 13. 



1874. Strophomena, James. Cincinnati Quart. Jour. Sci., vol i, p. 335. 



1875. Strophomena, Miller. Cincinnati Quart. Jour. Sci., vol. ii, pp. 51-54. 



1881. Strophmneiui, N. H. Winchell. Ninth Annual Rept. .State Geologist of Minnesota, p. 120. 



1881. Strophomena, White. Tenth Ann. Rept. Indiana State Geol., p. 113, {)I. i, figs. 6, 7. 



1882. Strophomena, Whitfield. Geology of Wisconsin, vol. iv, p. 261, pi. xii, figs. 15, 16 ; p. 262, 



pi. xii, fig. 14. 



1883. Strophomena, D.vvidson. British Silurian Br.achiopoda, Suppl., p. 193, pi. xvi, figs. 6, 7. 

 1883. Strophomena, Uxht.. Report N. Y. State Geologist for 1882, pi. xxxviii, figs. 1-11. 

 1887. Strophomena, Shaler. Memoii-s Kentucky Geol. Survey, p. 4, pis. ii, iii. 



Diagnosis. Shells normally concavo-convex. Surface ornamented by radi- 

 ating striae, of alternating size, cros.sed and crenulated by finer concentric 

 striae. Cardinal margins without denticulations. Interior of the pedicle-valve 



