176 AMERICAN FOSSIL BRYOZOA. [bull. 173. 



Atactoporella ramosa Ulrich. 



1893. Atactoporella ramosa. Ulrich, Geol. Minnesota, III, p. 226, pi. xx, 22-27. 

 Trenton (Black River): Cannon Falls, Minnesota. 



Atactoporella schucherti Ulrich. 



1883. Atactoporella schucherti. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VI, 

 p. 251, pi. xii, 5-56. 



1895. Atactoporella schucherti. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 

 XVIII, p. 80. 

 Cincinnati (Richmond): Oxford, Waynesville, and Oregonia, Ohio; Rich- 

 mond and Versailles, Indiana. 



Atactoporella tenella (Ulrich). 



1879. Atactopora tenella. Ulrich, Jour. Cincinnati Soc. Nat. Hist., II, p. 123, 



pi. xii, 5, 5a. 

 1883. Atactoporella tenella. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VI, p. 246. 

 1895. Atactoporella tenella. J. F. James, Jour. Cincinnati Soc. Nat. Hist,, 

 XVIII, p. 80. 

 Cincinnati (Lorraine): Cincinnati, Ohio, and vicinity. 



Atactoporella typicalis Ulrich. 



1883. Atactoporella typicalis. Ulrich, Jour. Cincinnati Soc. Nat. Hist., VI, 

 p. 248, pi. xii, 3-3fZ. 



1895. Atactoporella typicalis. J. F. James, Jour. Cincinnati Soc. Nat. Hist., 



XVIII, p. 80. 



1896. Atactoporella typicalis. Ulrich, Zittel's Textb. Pal. (Engl, ed.), fig. 450, 



(p. 272). 



1897. Atactoporella typicalis. Simpson, Fourteenth Ann. Rep. State Geologist 



New York for the year 1894, tigs. 165-167 (p. 585). 

 Cincinnati (Utica): Covington and Newport, Kentucky ; Cincinnati, Ohio. 



Atactoporella typicalis-prsecipta Ulrich. 



1893. Atactoporella typicalis var. prsecipta. Ulrich, Geol. Minnesota, III, p. 223, 

 pi. XV, 16, 17, pi. xviii, 1-4. 

 Trenton (Black River) : Minneapolis, St. Paul, and Fountain, Minnesota. 



Aulopora Goldfuss. Considered at present a genus of corals. 

 Aulopora arachnoidea Hall. See Stomatopora arachnoidea (Hall). 

 Aulopora ? Canadensis Nicholson. See Hederella canadensis (Nich- 

 olson). 

 Aulopora filiformis Billings. See Hederella filiformis (Billings). 

 Aulopora frondosa James. See Proboscina frondosa (Nicholson). 

 BACTROPORA Hall and Simpson. Genotype: Trematopora ? grani- 



striata Hall. 



1887. Bactropora. Hall and Simpson, Pal. New York, VI, p. xv. 



1889. Bactropora. Miller, North American Geol. Pal., p. 294. 



1890. Bactropora. Ulrich, Geol. Surv. Illinois, VIII, pp. 402, 662. 



1896. Bactropora. Ulrich, Zittel's Texb. Pal., (Engl. ed. ), p. 281. 



1897. Bactropora. Simpson, Fourteenth Ann. Rep. State Geologist New York 



for the year 1894, p. 553. 



Bactropora curvata Hall and Simpson. 



1887. Bactropora curvata. Hall and Simpson, Pal. New York, VI, p. 194, pi. xvi, 



14-16. 

 1897. Bactropora curvata. Simpson, Fourteenth Ann. Rep. State Geologist New 

 York for the year 1894, pi. xvi, 13, 14. 

 Hamilton: Canandaigua Lake, New York. 



