scHucHEET.] INDEX AND BIBLIOGRAPHY. 425 



Stropheodonta navalis Swallow — Contiuued. 



of Brachiopoda has taken ou as many Tariations as has S. demissa in the 

 vicinity of Fulton, Missouri. Mr. D. K. Greger has furnished the writer over 

 one hundred examples of this species and no two are exactly alike. Swal- 

 low's ten species are here reduced to three and one variety: S. navalis and 

 var. booneusis, S. kemperi, and S. callawayensis. 



Keyes (Geol. Survey Missouri, V, 1895) regards S. navalis, callawayensis, 

 quadrata, and iBquicostata as synonyms for S. demissa, while S. cymhi- 

 formis, suhcymbiformis, kemperi, inllexa, and boonensis are regarded by him 

 as but one species, S. cymbiformis. S. altidorsata is regarded as "insuffi- 

 ciently described." 



Stropheodonta navalis boonensis Swallow. Hamiltou (Dev.). 



Strophodonta booensis and inflexa Swallow Trans. St. Louis Acad. Sci., 1, 1860, 



pp. 637, 638. 

 Loc. Callaway County, Missouri. 



Stropheodonta nearpassi Barrett. Coralline limestone (Sil.). 



Leptiinia Hall, Pal. New York, II, 1852, pi. 74, tig. 3. 



Strophodonta nearpassi Barrett, American Jour. Sci., 3d ser., XV, 1878, p. 372. 

 Loc. Near Port Jervis, New York. 



Stropheodonta parva Owen. namilton (Dev.). 



Strophodonta parva Owen, Geol. Survey Wisconsin, Iowa, and Minnesota, 1852, 



p. 584, pi. 3A, fig. 9. 

 Loc. New Buffalo, Iowa. 

 Ohs. This maj"^ prove to be young S. demissa. 



Stropheodonta parva Hall. Upper Helderbexg (Dev.). 



strophodonta parva Hall, Sixteenth Eep. N. Y. State Cab. Nat. Hist., 1863, p. 



37;— Pal. New York, IV, 1867, p. 85, pi. 11, figs. 5, 11. 

 Loc. Albany and Schoharie counties. New York. 



Stropheodonta patersoni Hall. Oriskany to Oorniferous (Dev.). 



Strophomena (Strophodonta) patersoni Hall, Tenth Rep. N. Y. State Cab. Nat. 



Hist. ,.18.57, p. 114, figs. 1-5. 

 Strophomena ? petersoui Billings, Canadian Jour. Sci. Arts, 2d ser., VI, 1861, 



p. 340, fig. 115. 

 Strophomena patersoni Billings, Geol. Canada, 1863, p. 367, fig. 374. — Nicholson, 



Pal. Prov. Ontario, 1873, p. 67. 

 Strophodonta patersoni Hall, Pal. New York, IV, 1867, p. 89, pi. 12, figs. 9-11 ; 



pi. 13, figs. 1-5;— Second Ann. Rep. N. Y. State Geol., 1883, pi. 45, fig. 15.— 



Walcott, Mon. U. S. Geol. Survey, VIII, 1884, p. 119. 

 Stropheodonta patersoni Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pi. 14, 



fig. 15. 

 Loc. Schoharie, Statiord, Williamsville, etc.. New York; Columbus, Ohio; Bake- 



oven, Illinois; Eureka district, Nevada; county of Haldimand, Ontario, 



Canada. 



Stropheodonta perplana (Conrad). Upper Helderberg-Chemuug (Dev.). 



Strophomena perplana Conrad, Jour. Acad. Nat. Sci. Philadelphia,VIII,1842, p. 

 257, pi. 14, fig. 11.— Rogers, Geol. Pennsylvania, II, Pt. II, 1858, p. 827, fig. 665.— 

 Billings, Canadian Jour. Sci. Arts, 2d ser., VI, 1861, p.343;— Proc. Portland 

 Soc. Nat. Hist., 1863, p. 109.— Nicholson, Pal. Prov. Ontario, 1873, p. 64. 



Strophomena delthyris Conrad, Jour. Acad. Nat. Sci. Philadelphia, VIII, 1842 

 p. 258, pi. 14, fig. 19. 



Strophomena pluristriata Conrad, Ibidem, 1842, p. 259. 



Strophomena crenistria Hall, Geol. N. Y. ; Rep. Fourth Dist., 1843, p. 171, fig. 4. 



