scnuriiEKT] INDEX AND BIBLIOGRAPHY. 171 



Centronella glansfagea Hall. Oriskany-Coriiiferous (Dev.). 



Rhyiichonellii <ilansfaji»ii Ilall, Tenth Rep. New York State Cab. Nat. Hist., 



1!S57, p. 125, ligs. l-fi. 

 Centronella glaiisfagea Billings, Canadian Nat. Geol., IV, 1859, p. 132, figs. 



1-5;— Canadian .lonr., VI, 1861, p. 271, fig. 97;— Geol. Canaila, 18(13, p. 374, 



lig. 105.- Hall, Sixteenth Rep. New York State Cab. Nat. Hist., 18t;3, pp. 



•15-47;— Pal. New York, IV, 1867, p. 399, pi. 61A, fig.s. 1-21, 25, 26.— N.-.ttelroth, 



Kentucky Fossil Shells, Mem. Kentucky Geol. Survey, 1889. ]>. 1.53, pi. 31, ligs. 



14-17.— Hall and Clarke, Pal. New York, VIII, I't. II, 1893, p. 268, fig. 180; 



180; pi. 79, figs. 1-14,17,21. 

 Loc. Albany and Schoharie counties. New York; Cayuga, Ontario; Falls of 



Ohio; Michigan. 

 Ohn. In the Anitnican Museum of Natural History this species is labeled Atrypa 



naviculoides Coui.ad. The writer has not been able to lind this <lescrii>tion. 



It may be one of Conrad's manuscript names. 



Centronella glaucia Hall. Hamilton (Dev.), 



Centronella glaucia Hall, Pal. New York, IV, 1867, p. 403, pi. 61A, ligs. .39, 40.— 



Hall and Clarke, Ibidem, VIII, Pt. II, 1893, p. 269. 

 Loc. Schoharie, New Y'ork. 



Centronella hecate BilliugvS=C. alveata. 



Centronella impressa Hall. Hamilton (Dev.). 



(Jentrouella iniiiressa Hall, Fourteenth Rep. New York State Cab. Nat. Hist., (July 

 or August) 1861, p. 102 ;— Fifteenth Rep., Ibidem, 1862, pi. 3, figs. 1-5.— Bil- 

 lings, Canadian Nat. Geol., VII, 1862, p. 392.— Hall, Pal. New York, IV, 1867, 

 p. 402, pi. 61A, figs. 30-38.— Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, 

 p. 269, pl. 79, figs. 16, 18-20. 



Loc. Bellona, York, Pavilion, and Hamburg, New Y'ork. 



Ohs. Billings says this species is the same as C. hecate (^C. alveata). 



Centronella Julia A. Winchell=Romingerina Julia. 

 Centronella margarida Derby =Trigeria margarida. 



Centronella (?) navicella Hall. Chemnng (Dev.). 



Terebratula navicella Hall, Pal. New York, IV, 1867, p. 391, pl. 60, ligs. 38-44. 

 Centrouella ( f ) navicella Hall and Clarke, Ibidem, VIII, Pt. II, 1895, i>l. 79, figs. 



40-42. 

 Loc, Rockford, Iowa. 



Centronella ovata Hall. Uppei" Helderberg (Dev.). 



Centronella ovata H:ill, Pal. New York, IV, 1867, p. 419, pl. 61A, figs. 47-49. 

 Loc. Cayuga, Ontario. 



Centronella(?) silvetii A. Ulrich. Devonian. 



Centronella silvetii A. Ulrich, N. Jahrb. f. Mineral., Beilageband, VIII, 1892, 



p. 51, pl. 4, figs.l.5a-15d. 

 Loc. Chahnarani, Bolivia. 



Centronella tumida Billings. Oriskany and Corniferous (Dev.). 



Centronella tumida Billings, Canadian Jour., VI, 1861, p. 272, fig. 98;— Geol. 



Canada, 1863, p. 374, fig. 404. 

 I^oc. Cayuga and Port Colbourne, Ontario. 



CHARIONELLA Billings. Genotype Atrypa scitula Hall. 



Charionella Billings, Canadian Jour,, VI, 1861, pp. 148, 274, figs. 101, 102,— Hall, 

 Sixteenth Rep. New York State Cab. Nat Hist., 1863, p. 40; — American Jour. 

 Sci., n. Ber., XXXV, 1863, p. 39i;.— Hall and Clarke, Pal. New York, \III, 

 Pt. II, 1893, p. 78 ;— Thirteenth Rep New York State Geologist, 1895, p. 775. 



