302 



MOLLUSCO1DA. 



[FEN. 



FENESTELLA, Lonsdale, 1839, Murch, Sil. 

 Syst. [Ety. fenestella, little window.] 

 Zoarium, flattened or infundibuliform, 

 composed of rays radiating from a base 

 and uniting laterally by dissepiments, 

 so as to form a net-work, the meshes 

 of which are usually oblong; inner 

 surface of rays rounded and striated, 

 and without cells; cells on the outer 

 side of the rays in two rows, one on 

 eacli side of a median ridge; dissepi- 

 ments witli out cells. Type F. antiqua. 



acaulis, see Unitrypa acaulis. 



acmea, Hall, 1876, 28th Rep. N. Y. Mus. 

 Nat. Hist., p. 124, Niagara Gr. 



aculeata, see Polypora aculeata. 



acuticosta, Roemer, 1860, Sil. Fauna West. 

 Tenn., p. 30, Niagara Gr. 



adnata, see Polypora adnata. 



adornata, Hall. 1887, Pal. N. Y., vol. vi, 

 p. 66, Low. Held. Gr, 



adraste, Hall, 1883, Rep. St. Geol., pi. 20, 

 fig. 20-22, Low. Held. Gr. 



.-i-ijualis, Hall, 1881, Bryozoans of the 

 Up. Held. Gr., p. 31, and Pal. N. Y., 

 vol. 6, p. 112, Up. Held. Gr. 



aesyle, Hall, 1883, Rep. St. Geol., pi. 19, 

 fig. 11-13, and Pal. N. Y., vol. 6, p. 46, 

 Low. Held. Gr. 



albida, Hall, 1887, 6th Ann. Rep. Geo. 

 N. Y., p. 48, Waverly Gr. 



albida var. ricbfieldensis, Ulrich, 1888, 

 Bull. Denison Univ., p. 66, Wa- 

 verly Gr. 



althfea, Hall, 1883, Rep. St. Geol., pi. 19, 

 fig. 17-19, and Pal. N. Y., vol. 6, p. 48, 

 Low. Held. Gr. 



ambigua, see Loculipora ambigua. 



angulata, Hall, 1881, Bryozoans of the Up. 

 Held. Gr., p. 28, Up." Held. Gr. 



angustata, Hall, 1884, 36th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 60, Ham. Gr. 



anonyma, Hall, 1881, Bryozoans of the 

 Up. Held. Gr., p. 34, Up. Held. Gr. 



aperta, Hall, 1887, 6th Ann. Rep. St. 

 Geol. N. Y., p. 58, Waverly Gr. 



arctica, Salter, 1855, Belcher's Last Arctic 

 Voyage, vol. 2, p. 385, Carboniferous. 



arta, see Polypora arta. 



aspectans, Hall, 1884, 36th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 59, Ham. Gr. 



assita, Hall, 1884, 36th Rep. N. Y. St. 

 Mus. Nat. Hist., p. 64, Ham. Gr. 



banyana, Prout, 1859, Trans. St. Louis 

 Acad. Sci., vol. 1, p. 450, Warsaw Gr. 



bellistriata, Hall, 1879, Desc. New Spec. 

 Foss., p. 7, and llth Rep. Ind. Geo. 

 and Nat. Hist., p. 252, Niagara Gr. 



bicornis, Spencer, 1884, Bull. No. 1, Mus. 

 Univ. St. Mo., p. 55, Clinton Gr. 



bifurca, Ulrich, 1886, Cont. to Am. Pal., 

 p. 6, Up. Held, Gr. 



bifurcata, Prout, 1866, Trans. St. Louis 

 Acad. Sci., vol. 2, p. 411, Ham. Gr. 



bigeneris, Ulrich, 1886, Cont. to Am. Pal., 

 p. 11, Up. Held. Gr. 



biimbricata, Hall, 1881, Bryozoans of the 

 Up. Held. Gr., p. 31, and Pal. N. Y., 

 vol. 6, p. 122, Up. Held. Gr. 



biserialis, see Hemitrypa biserialis. 

 biseriata, Hall, 1881, Brvozoans of the Up. 



Held. Gr., p. 25, and Pal. N. Y., vol. 6, 



p. 113, Up. Held. Gr. 

 biserrulata, Hall, 1881, Bryozoans of the 



Up. Held. Gr., p. 30, and Pal. N. Y., 



vol. 6, p. 128, Up. Held. Gr. 

 brevilinea, Hall, 1884, 36th Rep. N. Y. 



St. Mus. Nat. Hist., p. 70, Ham. Gr. 

 brevisulcata, see Polypora brevisulcata. 

 burlingtonensis, Ulrich, (in press,) 



Geo. Sur. 111., vol. 8, pi. 49, Burling- 

 ton Gr. 

 cavernosa, Ulrich, 1888, Bull. Denison 



Univ., p. 69, Waverly Gr. 

 celsipora, see Polypora celsipora. 

 celsipora var. minima, see Polypora celsi- 

 pora var. minima. 

 celsipora var. minor, see Polypora celsipora 



var. minor, 

 cestriensis, Ulrich, (in press,) Geo. Sur. 



111., vol. 8, pi. 51, Kaskaskia Gr. 

 cinctuta, Hall, 1884, 36th Rep. N. Y. St. 



Mus. Nat. Hist., p. 62, Ham. Gr. 

 cingulata, Ulrich, (in press,) Geo. Sur. 



111., vol. 8, pi. 52, Keokuk Gr. 

 clathrata, Hall, 1887, Pal. N. Y., vol. 6, 



p. 117, Up. Held. Gr. 

 cleia, Hall, 1883, Rep. St. Geol., pi. 20, 



fig. 14-15, Low. Held. Gr. 

 compacta, see Polypora compacta. 

 compressa, Ulrich, (in press,) Geo. Sur. 



111., vol. 8, pi. 50, Keokuk Gr. 

 compressa, var. nododorsalis, Ulrich, (in 



press,) Geo. Sur. 111., vol. 8, pi. 50, Ke- 

 okuk Gr. 



compressa, see Polypora compressa. 

 conferta, Hall, 1879, Desc. New Spec. 



Foss., p. 7, and llth Rep. Ind. Geo., 



and Nat. Hist., p. 252, Niagara Gr. 

 confertipora, Hall, 1887, Pal. N. Y., vol. 



6, p. 108, Up. Held. Gr. 

 conjunctiva, see Isotrypa conjunctiva, 

 coronis, Hall, 1883, Rep. St. Geol., pi. 21, 



fig. 10-13, Low. Held. Gr. 

 corticata, Prout, 1858, Trans. St. Louis 



Acad. Sci., vol. 1, p. 231, Coal 



Meas. 

 crebripora, Hall, 1874, 26th Rep. N. Y. 



St. Mus. Nat. Hist., p. 25, Low. 



Held. Gr. 

 cribrosa, Hall, 1852, Pal. N. Y., vol. 2, p. 



166, Niagara Gr. 



cribrosa, see Hemitrypa cribrosa. 

 cultellata, see Polypora cultellata. 

 cultrata, Hall, 1881, Bryozoans of the Up. 



Held. Gr., p. 29, and Pal. N. Y., vol. 6, 



p. 119, Up. Held. Gr. 

 curvata, Hall, 1884, 36th Rep. N. Y. St. 



Mus. Nat. Hist., p. 69, Ham. Gr. 

 curvijunctura, Hall, 1881, Brvozoans of 



the Up. Held. Gr., p. 29, and* Pal. N. Y., 



vol. 6, p. 107, Up. Held. Gr. 

 cylindracea, Hall, 1881, Bryo/oans of 



the Up. Held. Gr., p. 24, Up. 



Held. Gr. 

 davidsoni, Nicholson, 1875, Geo. Mag., 



vol. 2, n. s., p.36, Ham. Gr. 



