352 SYNOPSIS OF AMERICAN FOSSIL BRACHIOPODA. [bull. 87. 



Rhipidomella solitaria Hall. Hamilton (Dev.). 



Ortbis solitaria Hall, Thirteenth Rep. New York StMe Cab. Nat. Hist., 1860, p. 



80;— Pal. New York, IV, 18(57, p. 45, pi. 7, fig. 1. 

 Rbipidomella solitaria Hall and Clarke, Pal. New York, YIII, Pt. I, 1892, p. 225, 

 Loc. York, New York. 



Rhipidomella subcirculus (Simpson). Clinton (Sil.). 



Ortbis siibcircula Simpson, Trans. American Pbilosopbical Soc., n. ser., XVI, 



1889, p. 437, tig. 2. 

 Loc. Mifflin and Huntington coonties, Pennsylvania. 



Rhipidomella subelliptica (White and Whitlleld). Kinderhook (L.Carb.). 

 < »rthis sul)elliptica Wbite and Wbitiield, Proc. Boston Soc. Nat. Hist., VIII, 



18()2, p. 292. 

 Rhipidomella subelliptica Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 



p. 225. 

 Loc. Burlington, Iowa. 



Rhipidomella suborbicularis Hall. Hamilton (Dev.). 



Ortbis suborbicularis Hall, Geol. Survey Iowa, I, Pt. II, 1858, p. 486, pi. 2, fig. 1. 

 Rhipidomella suborbicularis Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 



p. 225. 

 Loc. Rock Island, Illinois. 



Rhipidomella thiemei (White). Chemung (Dev.) and Kinderhook (L. 



Carb.). 



Ortbis thiemii. White, Jour. Boston Soc. Nat. Hist., VII, 1860, p. 231;— Twelfth 

 Rep. Hayden's U. S. Geol. Survey Terr., 1883, p. 164, pi. 41, fig. 4. 



Orthis thiemii? Hall, Pal. New York, IV, 1867, p. 63, pi. 8, fig. 2. 



Rhipidomella thiemii Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 225, 

 pi. 6A, figs. 14, 15. 



Loc. Burlington, Iowa ; In the Chemung group at Leon, Napoli, and New Albion, 

 New York. 



Rhipidomella tubulistriata Hall. Lower Helderberg (Dev.). 



Ortbis tuliulostriata Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 42;— 



Pal. ^ew York, III, 1859, p. 166, pi. 11, figs. 1-6. 

 Rhipidomella tubulostriata Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 



pp. 210, 225. 

 Loc. Albany County, New York. 



Rhipidomella uberis (Billings). Anticosti (Sil.). 



Orthis a'quivalx is Sbaler (non Hall, 1847), Bull. Mus. Comp. Zool., 4, 1865, p. 66. 

 Ortbis uberis Billings, Catalogue Sil. I'oss. Anticosti, 1866, p. 42. 

 Rhipidomella uberis Hall and Clarke, I'al. New York, VIII, Pt. I, 1892, p. 224. 

 Loc. Anticosti. 

 Ohs. See Rhipidomella rhynchonelliformis (Sbaler). 



Rhipidomella vanuxemi Hall. Corniferons-Hamilton (Dev.). 



orthis vanuxemi Hall, Tenth Rep. N. Y. State Cab. Nat. Hist., 1857, p. 1.35, figs. 

 1-7;— (;eol. Survey Iowa, I, Pt. 11,1858, p. 487, pi. 2, figs. 2, 3.— Billings, 

 Canadian Jour., V, 1860, p. 269.— A. Winchdl, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1862, p. 409.— Billings, Geol. Cau.ada, 1863, p. 384, fig. 417..— Hall, 

 Pal. New York, IV, 1867, pp. 40, 47, pi. 5, fig. 6; pi. 6, fig. 3;— Second Ann. 

 Rep. N. Y. State Geol., 1883, pi. 36, figs. 14, 15.— Nettelroth, Kentucky Fos- 

 sil Shells, Mem. Kentucky Geol. Survey, 1889, p. 45, pi. 16, figs. 4-6, 12-14.— 

 Herrick, Geol. Ohio, VII, 1895, pi. 20, "fig. 10. 



