296 AMERICAN FOSSIL BRYOZOA. [bull. 173. 



Intrapora undulata (Ulrich). 



1890. Stictoporella ? undulata. Ulrich, Geol. Sur. Illinois, VIII, p. 533, pi. Ixix, 

 6-66. 

 Chester: Litchtield, Kentucky. 



Intricaria Defrance. Not a Paleozoic genus. 



Intricaria olathrata Miller and Dyer. See Phylloporina dathrata 



(Miller and Dyer). 

 Intricaria ? reticulata Hall. See Phylloporina reticulata (Hall.) 



ISOTRYPA Hall. Genotype: Fenestella (Isotrypa) conjunctiva Hall. 

 1885. Isotrypa. Hall, Rep. State Geologist New York for the year 1884, p. 37. 

 1887. Isotrypa. Hall and Simpson, Pal. New York, VI, p. xxiii. 



1889. Isotrypa. Miller, North American Geol. Pal., p. 310. 



1890. Isotrypa (emend. ). Ulrich, Geol. Sur. Illinois, VIII, p. 395. 



1895. Isotrypa. Simpson, Thirteenth Ann. Rep. State Geologist New York for 



the year 1893, pp. 689, 714, 726; Forty-seventh Ann. Rep. New York State 



Museum, pp. 883, 908, 920. 

 1895. 'Isotrypa. Whidborne, Devon. Fauna England, (Pal. Soc. Publ.), II, Part 



4, p. 180. 

 1897. Isotrypa. Simpson, Fourteenth Ann. Rep. State Geologist New York for 



the year 1894, pp. 510, 520. 

 1895. Tectuliporella. Simpson, Thirteenth Ann. Rep. State Geologist New York 



for the year 1893, pp. 715, 726; Forty-seventh Ann. Rep. New York State 



Museum, pp. 909, 920. 

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



for the year 1894, pp. 510, 520. 

 Obs. Specimens of the type species of Tectuliporella show that the pore 



on the reverse side is frequently wanting and generally not uniformly 



developed. Hence there is no ground for Tectuliporella. 



Isotrypa ambigua Ulrich. See Loculipora ambigua (Hall). 



Isotrypa bifaria Hall. See Isotrypa conjunctiva (Hall). 



Isotrypa conjunctiva (Hall). 



1883. Fenestella (Hemitrypa) conjvmctiva. Hall, Trans. Albany Institute, X, 



p. 178 (abstract, 1881, p. 36). 

 1887. Fenestella (Isotrypa) conjunctiva. Hall and Simpson, Pal. New York, 



VI, p. 143, pi. liv, 10-21. 

 1889. Isotrypa conjunctiva. Miller, North American Geol. Pal., fig. 490 (p. 310). 

 1897. Isotrypa conjunctiva. Simpson, Fourteenth Ann. Rep. State Geologist 



New York for the year 1894, fig. 59 (p. 310), pi. vi, 7-12. 

 1885. Isotrypa bifaria (in error). Hall, Rep. State Geologist New York for the 



year 1884, pi. ii, 13, 16. 

 Upper Helderberg: Walpole, Ontario. 



Isotrypa consimilis Hall. 



1885. Isotrypa consimilis. Hall, Rep. State Geologist New York for the year 

 1884, pi. ii, 14. 



1887. Fenestella (Unitrypa?) consimilis. Hall and Simpson, Pal. New York, 

 VI, p. 142, pi. liv, 7-9. 



1897. Tectuliporella consimilis. Simpson, Fourteenth Ann. Rep. State Geolo- 

 gist New York for the year 1894, pi. vi, 13-15. 

 Upper Helderberg: Walpole, Ontario. 



Leioclema. See Lioclema. 



