scHtTCHERT.] INDEX AND BIBLIOGRAPHY. 227 



Gypidula nucleus (Hall and Whitfield) — Continued. 



Sieberella nucleus Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 247, 



pi. 72, tigs. 1-3. 

 Loc. Louisville, Kentucky. 



Gypidula occiidentalis Hall = G. comis. 



Gypidula pseudogaleata (Hall). Lower Helderberg (Dev.). 



Pentamerus pseuclogaleatns Hall, Tenth Rep. New York State Cab. Nat. Hist., 



18:.7, p. 106, figs. 1-6;— Pal. New York, III, 1859, p. 259, pi. 46, fig. 2. 

 Sieberella pseudogaleata Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 



242, pi. 72, fig. 14. 

 Loc. Schoharie and Carlisle, New York. 



Gypidula roemeri (Hall and Clarke). Silurian. 



Pentamerus galeatus Roenier (not Dalman), Sil. Fauna west. Tennessee, 1860, p. 



73, pi. 5, fig. 14. 

 Sieberella roemeri Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 247, pL 



72, fig. 6. 

 Loc. Decatur County, Tennessee. 



Gypidula romingeri Hall and Clarke. Hamilton (Dev.). 



Gypidula romingeri Hall and Clark:e, Pal. New York, VIII, Pt. II, 1893, p. 248, 



pi. 72, figs. 27-33. 

 Loc. Alpena, Michigan. 



Gypidula subglobosa (Meek and Worthen). .Hamilton (Dev.). 



Pentamerus subgiobosus Meek and Wortheu, Geol. Survey Illinois, III, 1868, p. 



429, pi. 13, fig. 5. 

 Gypidula subglobosa Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 248. 

 Loc. Rock Island, Illinois. 



Gypidula uniplicata (Nettelrotb). Niagara (Sil.). 



Pentamerus uniplicatus Nettelroth, Kentucky Fossil Shells, Mem. Kentucky 



Geol. Survey, 1889, p. 63, pi. 33, figs. 25, 26. 

 Sieberella uniplicata Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 247. 

 Loc. Louisville, Kentucky. 



HARTTINA Hall and Clarke. Genotype Centronella anna Hartt. 



Harttina Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 292;— Thirteenth 

 Ann. Rep. New York State Geologist, 1895, p. 862. 



Harttina coutinhoana (Derby). Upper Carboniferous. 



Waldheimia coutinhoana Derby, Bull. Cornell Univ., I, 1874, p. 3, pi. 3, fig. 22; 



pi. 8, fig. 6; pi. 9, figs. 1,2. 

 Harttina coutinhoana Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 292. 

 Loc. Bomjardim, Brazil. 



Harttina anna (Hartt). Upper Carboniferous. 



Centronella anna Hartt, Dawson's Acadian Geol., 3d ed., 1878, p. 3C0, fig. 99. 

 Harttina anna Hall and Clarke, Pal. New York, VIII, Ft. II, 1893, p. 292, figs. 



211,212; pi. 79, figs. 37-39. 

 Loc. Windsor, Nova Scotia. 



Hallina Winchell and Schuchert=Zygospira. 



HEBERTELLA Hall and Clarke. Genotype Orthis sinuata Hall. 



Group of Orthis occidentalis Hall, Bull. Geol. Soc. America, I, 18S9, p. 20. 



Hebertella Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 198,222.— 

 Winchell and Schuchert, Minnesota Geol. Survey, III, 1893, p. 432.— Hall 

 and Clarke, Eleventh Ann. Rep. New York State Geologist, 1894, p. 266. 



