NicKLESANDBAssi.EK.] CATALOGUE OF GENERA AND SPECIJ:S. 315 



Monotrypa iiicerta. Ami. Not recognizal)lp. 



1892. Monotrypa incerta. Ami, Canadian Record of Science, V, \<. 101. 

 Trenton: Quebec City, Quebec. 



Monotrypa intabulata Ulrich. 



189o. Monotrypa intabulata. T'lrich, Geol. Minnesota, III, ]>. 305, fi^. 20. 

 Trenton: Goodhue and Filhnore counties, Minnesota. 



Monotrypa irreo'ularis Ulrich. See Leptotrypa ? irregularis (Ulrich). 



Monotrypa magna Ulrich. 



1893. Monotrypa magna. Ulricli, Geol. Minnesota, III, pi. 304, p. xxvii, 28, 29. 

 Trenton (Stones River): Dixon, Illinois; Mineral Point and Beloit, Wis- 

 consin. 



Monotrypa monticulata (Hall). 



1879. Chgetetes monticulatus. Hall, Thirty-second Ann. Rep. New York State 

 Museum, p. 148 (reprint, 1880, p. 10). 



1882. Monotrypa monticulata. Ulrich, Jotir. Cincinnati Soc. Nat. Hist., V, p. 



256. 



1883. Chsetetes monticulatus. Hall, Rep. State Geologist New York for the year 



1882, pi. viii, 5-7. 

 1887. Chfctetes monticulatus. Hall and Simpson, Pal. New York, YI, ji. 12, 

 pi. viii, 5-7. 

 Lower Helderberg: Schoharie, New York. 



Monotrypa nodosa Ulrich. 



1882. Monticulipora ? Ortoni (not of Nicholson). Whitfield, Geol. Sur. Wis- 



consin, IV, p. 251, pi. xi, 7, 8. 

 1893. Monotrypa nodosa. Ulrich, Geol. Minnesota, III, p. .306. 



Cincinnati (Richmond): Iron Ridge and Delatield, Wisconsin; Savannah, 

 Illinois. 



Monotrypa petasiforrais Ulrich. See Amplexopora petasiforniis 

 (Nicholson). 



Monotrypa ? proxima (Hall). 



1879. Favosites proximus. Hall, Thirty-second Ann. Rep. New York State 

 Museum, p. 147 (reprint, 1880, p. 9). 



1883. Favosites proximus. Hall, Rep. State Geologist New York for the year 



1882, pi. vii, 13-15. 

 1887. Favosites proximus. Hall and Simj)son, Pal. New York, VI, p. 10, i)l. 

 vii, 13-15. 

 Lower Helderberg: Schoharie, New York. 



Monotrypa rectimuralis Ulrich. 



1890. Monotrypa rectimuralis. ITlrich, Geol. Sur. Illinois, VIII, p. 462, fig. 3a 

 (p. 308), fig. 4d (p. 309), pi. xxxviii, 1-1/^ 



1896. Monotrypa rectimuralis. J. F. James, Jour. Cincinnati Sot;. Nat. Hist., 



XVIII, p. 124. 



1897. Monotrypa rectimuralis. Simpson, Fourteenth Ann. Rej). State Geologist 



New York for the year 1894, figs. 151-153 (].. .581). 

 Trenton: Alexander County, Illinois. 



Monotrypa sphaerica (Hall). 



1874. Chsetetes spherica. Hall, Twenty-sixth Ann. Rep. New York State 



Museum, p. 111. 

 1883. Favosites sphericus. Hall, Rep. State (ieologi.st New York for tiie year 



1882, pi. vii, 1-12. 



