SCHUCHERT.] 



INDEX AND BIBLIOGRAPHY. 157 



Atrypina imbricata Hall. Lower Helderberg (Dev.). 



Leptocalia imbricata Hall, Tenth Rep. New York State Cab. Nat. Hist., 1857, 



p. 108;— Pal. New York, III, 1859, p. 246, pi. 38, figs. 8-13.— Billings, Geol. 



Canada, 1863, p. 957, fig. 452. 

 Trematospira imbricata Hall, Sisteeuth Rep. New York State Cab. Nat. Hist., 



1863, p. 60;— Trans. Albany Institute, IV, 1863, p. 146.— Keyes, Geol. Survey 



Missouri, V, 1895, p. 96. 

 Trematospira ? imbricata Meek and Worthen, Geol. Survey Illinois, III, 1868, p. 



381, pi. 7, fig. 2. 

 Atrypina imbricata Hall and Clarke, Pal. New York, yill, Pt. II, 1895, pi. 53, 



figs. 5, 6, 8-10. 

 Loc. Albany and Schoharie counties, New York; Perry County, Missouri. 



Atrypina intermedia (Hall). Arisaig (Sil.). 



Leptocadia intermedia Hall, Canadian Nat. Geol.,V, 1860, p. 147, fig. 5. — Daw- 

 son, Acadian Geology, 3d ed., 1878, p. 598, fig. 202. 

 Loc. Arisaig, Nova Scotia. 



Avicula desquamata Hall=Obolella crassa. 



AULACORHYNCHUS Dittmar. Genotype A. pacliti Dittmar. 



Aulacorhynchus Dittmar, Verhand. Kais. Mineral. Gessel. St. Petersburg, 2d 

 8er.,VII, 1871, p. 1, pi. 1, figs. 1-13.— Hall and Clarke, Pal. New York, Vlll, 

 Pt. II, 1893, p. 311;— Thirteenth Ann. Rep. New York State Geologist, 1895, 

 p. 904. 



Isogramma Meek and Worthen, Geol. Survey Illinois, V, 1873, p. 568. 



Aulacorhynclius millipunctatum (Meek and Worthen). Up. Coal Meas. 

 Chonetes? fmillipuuctata Meek and Worthen, Proc. Acad. Nat. Sci. Philadelphia, 



1870, p. 35;— Geol. Survey Illinois, V, 1873, p. 566, pi. 25, fig. 3. 

 Isogramma millipunctata Meek and Worthen, Ibidem, 1873, p. 568. 

 Aulacorhynchus millipunctatus Hall and Clarke, Pal. New York, VIII, Pt. II, 



1893, p. 312, pi. 83, figs. 14, 15. 

 Chonetes millipunctatus Keyes, Geol. Survey Missouri, V, p. 54. 

 Loc. Marion County, Illinois; Kansas City, Missouri. 

 Aulosteges gaadalupensis Shumard = Strophalosia guadalupensis. 

 Anlosteges spondyliformis White and St. John = Strophalosia spondy- 



liforniis. 

 Barrandella Hall and Clarke =01orinda. 



BAREOISELLA Hall and Clarke. Genotype Lingula snbspatulata 



Meek and Wortheu (non Hall and Meek). 

 Barroisella Hall and Clarke, Pal. New York, Extract, VIII, Pt. I, 1890, p. 62;— 

 Pal. New York, VIII, Pt. I, 1892, pp. 62, 64;— Eleventh Ann. Rep. New York 

 State Geologist, 1894, p. 230. 



Barroisella subspatulata (Meek and Worthen). Black Slate (Dev.). 



Lingula subspatulata Meek and Worthen (non Hall and Meek), Geol. Survey 



Illinois, III, 1868, p. 437, pi. 13, fig. 1. 

 Lingula subspatulata? A. Winchell, Proc. American Phil. Soc, XII, 1870, p. 248. 

 Barroisella subspatulata Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, 



p. 63, pi. 2, figs. 14-16 and p. 164. 

 Loc. Jonesboro, Illinois ; Louisville and Lebanon, Kentucky ; Rockford, Indiana. 



BEACHIA Hall and Clarke. Genotype Meganteris suessana Hall. 



Beachia Hall and Clarke, Pal. New York, VIII, Pt. II, 1893, p. 260;— Thirteenth 

 Ann. Rep. New York State Geologist, 1895, p. 850. 



