252 AMERICAN FOSSIL BRYOZOA. [bull. 173. 



Fenestella exigua Ulrich. 



1890. Fenestella exigua. Ulrich, Geol. Surv. Illinois, VIII, p. 545, pi. li, 1, la 

 Warsaw: Monroe County, Illinois. 



Fenestella eximia Winchell. 



1866. Fenestella eximia. Winchell, Rep. Lower Penin. Michigan, p. 92. 

 Hamilton: Petoskey, Michigan. 



Fenestella exornata Hall. See Semicoscinium exornatum (Hall). 

 Fenestella (Heraitrypa) fastigata Hall. See Unitrypa fastigata (Hall). 

 Fenestella (Unitrypa) fastigata Hall and Simpson. See Unitrypa 



fastigata (Hall). 

 Fenestella (Hemitrypa) favosa Hall. See Hemitrypa favosa (Hall). 

 Fenestella (Unitrypa) ficticius Hall and Simpson. See Unitrypa fieticia 



(Hall and Simpson). 

 Fenestella filiformis Nicholson. Not recognizable. 



1874. Fenestella filiformis. Nicholson, Geol. Mag., new ser., I, p. 199, pi. ix, 24. 

 1874. Fenestella filiformis. Nicholson, Pal. Province Ontario, p. 107, fig. 45. 

 Upper Helderberg: Wainfleet, Ontario. 



Obs. This form was founded upon the outer covering of some species of 

 Unitrypa, which has probably since been described under another 

 name. 



Fenestella filistriata Ulrich. 



1890. Fenestella filistriata. Ulrich, Geol. Surv. Illinois, VIII, p. 535, pi. xlix, 



2, 2a. 

 1894. Fenestella filistriata. Keyes, Missouri Geol. Surv., V, p. 22. 



Burlington: Burlington, Iowa; Montezuma, Pike County, Illinois. 



Fenestella filitexta Winchell. 



1866. Fenestella filitexta. Winchell, Rep. Lower Penin. Michigan, p. 92. 

 Hamilton: Petoskey, Michigan. 



Fenestella fistiilata Hall. See Polypora fistulata (Hall). 

 Fenestella (Polypora) fistulata Hall. See Polypora fistulata (Hall). 

 Fenestella flabelliformis Hall. See Polypora flabelliformis (Hall). 

 Fenestella (Polypora) flabelliformis Hall. Set Polypora flabelliformis 



(Hall). 

 Fenestella flexuosa Ulrich. See Reteporina flexuosa (Ulrich). 



Fenestella foliata Ulrich. 



1888. Fenestella foliata. Ulrich, Bull. Denison Univ., IV, p. 67, pi. xiii, 4-4c. 

 Waverly : Cuyahoga Valley, Ohio. 



Fenestella ? frequens Hall. 



1888. Fenestella frequens. Hall, Seventh Ann. Rep. State Geologist New York 

 for the year 1887, pi. ix, 12-15 ; Forty-first Ann. Rep. New York State 

 Mus.,pl. ix, 12-15. 

 Lower Helderberg: Clarksville, New York. 



Fenestella funicula Ulrich. 



1890. Fenestella funicula. Ulrich, Geol. Surv. Illinois, VIII, p. 542. pi. li, 6. 

 1894. Fenestella funicula. Keyes, Missouri Geol. Surv., V, p. 23. 

 Keokuk: Keokuk, Iowa. 



Fenestella granifera Hall. See Semicoscinium graniferum (Hall). 



