220 SYNorsis of ami;i;ican forstl hrachiopoda. ihvllst. 



Eatonia medialis ( Vannxoiii). Lower Ilelderberg (Dev.). 



Atryi)ii medialis Vauuxem, (ieol. New York; Rep. Third Dist., 1S42, p. 120, lig. 4. 

 Eatoni;i medialis Hall, Tenth I^ep. New York State Cab. Nat. Hist., 1857, ]>. 90, 



tigs. 1-7;— Pal. New York, IIT, 18.59, ]). 241, pi. :57, i\'^. 1.— Billings, I'roc. 



Portland .Soc. Nat. Hist., 18B3, p. Ill, i)l. 3, lig. 7.— Hall and Clarke, Pal. New 



Y'ork, VIII, Pt. II, 1893, p. 20G,.pl. 61, Hgs. 29-35. 

 r.oc. Schoharie, Carlisle, Catskill, etc., New York; Square Lake, Maine. 



Eatonia peculiaris (Conrad). Ijower Ilelderberg and Oriskany (Dev.). 



Atrypa peculiaris Conrad, Fifth Aun. Rep. Geol. Survey New York, 1841, p. 56. — 

 Vanuxem, Geol. New York; Rep. Third Dist., 1842, p. 123, tig. 3.— Hall, 

 Ibidem, Rep. Fourth Dist, 1843, ]>. 148, llg. 3. — Rogers, (ieol. Penusylvania, 

 II, Pt. II, 1858, p. 825, fig. 640. 



Atrypa? luiatella Castelnau, Essai Syst. Sil. I'Amerique Septentrionale, 1843, p. 

 39, pi. 14, tig. 3. 



Eatonia jx'cnliaris Hall, Twelfth Rep. New York State Cab. Nat. Hist., 1859, p. 

 37, figs. 1-7;— Pal. New York, III, 1859, p. 244, pi. 38, figs. 21-26; pi. 51, fig. 

 2; p. 436, pi. 101, fig. 2; pi. lOlA, fig. 1;— Fifteenth Rep. New York State 

 Cab. Nat. Hist., 1862, pi. 11.— Billings, Geol. Canada, 1863, p. 957, fig. 4,5U.— 

 Meek and Worthen, Geol. Survey Illinois, III, 1868, p. 395, pi. 8, fig. 2. — 

 Billings, Pal. Fossils, II, 1874, p. 40, pi. 3A, fig. 2.— Hall and Clarke, Pal. 

 New York, ^'III, Pt. 11, 1893, ]>. 206, pi. 61, figs. 17-26. 



Eatonia i)eculiaris? Keyes, Geol. Survey Missouri, V, 1895, p. 104. 



Lor. Schoharie, etc., New Y'ork ; Pennsylvania; Cumberland, Maryland; Jack- 

 son and Perry counties, Missouri; Gaspe. 



Eatonia pumila Hall. Ori.skaTiy (Dev^). 



Katonia pumila Hall, Pal. New York, III. 1859, p. 437, pi. 101, fig. 1.— Hall and 



Clarke, I'al. New York, Vlll, Pt. II, 1893, p. 206. 

 Loc. Albany County, New York. 



Eatonia singularis (Vamtx(iiii). Lower Helderberg (Dev.). 



Atrypa singularis Vanuxom, Geol. New Y'ork ; Rep. Third Dist., 1842, p. 120, fig 3. 

 Eatonia singularis Hall, Pal. New York, III, 1859, p. 242, pi. 38, figs. 14-20.— 



Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 206, pi. 61, figs. 13-16. 

 Lor. Schoharie, etc., New York. 



Eatonia sinuata Hall. Oriskany (Dev.). 



Eatouia sinuata Hall, T<mth Rep. New Y'ork State Cab. Nat. Hist., 1857, j). 91 ;— 

 Pal. New Y'ork, III, 1S59, p. 438, pi. lOlA, figs. 3-6.— Hall and Clarke, Ibidem, 

 VIII, Pt. II, 1893, p. 206, pi. 61, figs. 36-38. 



Loc. Cumberland, Maryland. 



Eatonia(?) variabilis Whiteaves. Hamilton (Dev.). 



Eatonia variabilis Whiteavcs, Cont. to Canadian Pal., I, 1891, p. 233, pi. 29, 



figs. 6-9. 

 l.or. Hay River, Canada. 



Eatonia whitfieldi ITall. Oriskany (Dev.). 



Eatonia whitfieldi Hall, Pal. New York, III, 18.59, p. 437, pi. lOlA, tig. 2.— Hall 



and Clarke, Ibidem, VIII, Pt. 11, 1893. i>. 20ti, ])1. 61, figs. 27, 28. 

 J.oc. Cumberland, Maryland. 



EICHWALDIA Billings. Genotype Eichwaldia subtrigonalis Billings. 



Eichwaldia Billings, Geol. Survey Canada; Rep. Progress lor 1857, 1858, p. 190; — 

 Canadian Nat. Geol., Ill, 18.58, p. 442. 



Eicliwaldia of other authors = Dictyouella. 



