NicKLES am; basslkk.] CATALOGUE OF GENERA AND SPECIES. 439 



Unitrypa pernodosa (TTall) — Continued. 



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

 VI, p. 189, pi. liii, 1-11. 

 Upper Helderberw: Walpole, Ontario. 



Unitrypa praecursor (Hall). 



1874. Fenestella praecursor. Hall, Twenty-sixtli Ann. Rep. New York State 



Museum, p. 94. 

 1879. Fenestella pnecursor. Hall, Thirty-second Ann. Rep. New York State 



Museum, p. 171 (reprint, 1880, p. 33). 

 1883. Fenestella preecursor. Hall, Rep. State Geologist New York for the year 



1882, pi. xxi, 14-18. 



1885. Fenestella (Unitrypa) praecursor. Hall, Rep. State Geologist New York 



for the year 1884, pi. ii, 10. 

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

 VI, p. 54, pi. xxi, 14-18. 

 Lower Helderberg: Catskill and Clarksville, New York. 



Unitrypa quadrula (Hall). 



1879. Fenestella quadrula. Hall, Thirty-second Ann. Rep. New York State 

 Museum, p. 172 (reprint, 1880, p. 34). 



1883. Fenestella quadrula. Hall, Rep. State Geologist New York for the year 



1882, pi. xxi, 19-22. 

 1887. Fenestella quadrula. Hall and Simpson, Pal. New York, VI, p. 53, pi. 



xxi, 19-22. 

 1890. Unitrypa quadrula. Ulrich, Geol. Sur. Illinois, VIII, p. 534. 

 Lower Helderberg: Glarksville, New York. 



Unitrypa retrorsa Ulrich. See Unitrypa tegulata (Hall). 



Unitrypa scalaris (Hall). 



1884. Fenestella scalaris. Hall, Thirty-sixth Ann. Rep. New York State Museum, 



p. 66. 



1887. Fenestella (Unitrypa) scalaris. Hall, Sixth Ann. Rep. State Geologist 



New York for the year 1886, p. 60. 



1888. Fenestella (Unitrypa) scalaris. Hall, Seventh Ann. Rep. State Geologist 



New York for the year 1887, pi. xi, 1-11 ; Forty-first Ann. Rep. New York 

 State Museum, pi. xi, 1-11. 

 1899. Unitrypa scalaris. Grabau, Bull. Buffalo Soc. Nat. Sci. , VI, p. 162, fig. 51. 

 Hamilton: Bellong, and other localities in New York; \yest Williams, 

 Ontario. 



Unitrypa spatiosa Hall. See Unitrypa lata (Hall). 



Unitrypa substriata (Hall). 



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

 177 (abstract, 1881, p. 35) . 

 Upper Helderberg: Falkirk, New York. 



Unitrypa tegulata (Hall). 



1883. Fenestella (Hemitrypa) tegulata. Hall, Trans. Albany Institute, X, p. 176 

 (abstract, 1881, p. 34). 



1886. Fenestella (Unitrypa) tegulata. Hall, Fifth Ann. Rep. State Geologist 



New York for the year 1885, pi. 11, 15-23. 



1887. Fenestella (Unitrypa) tegulata. Hall and Simpson, Pal. New York, VI, 



p. 135, pi. 11,15-23. 

 1883. Fenestella (Hemitrypa) stipata. Hall, Trans. Albany Institute, X, p. 175 

 (abstract, 1881, p. 34). 



