FEN. KIS.] 



MOLLUSCOIDA. 



305 



tenella, Hall, 1887, Pal. N. Y., vol. 6, p. 



105, Up. Held. Gr. 

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



165, Niagara Gr. 

 tenuis, Hall, 1852, Pal. N. Y., vol. 2, p. 51, 



Clinton Gr. 

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



fig. 1-5, Low. Held. Gr. 

 torta, Hall, 1881, Bryozoans of the Up. 



Held. Gr., p. 30, Up. Held. Gr. 

 trituberculata, Prout, 1858, Trans. St. 



Louis Acad. Sci., vol. 1, p. 228, Coal 



Meas. 

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



p. 116, Up. Held. Gr. 

 variabilis, Prout, 1858, Trans. St. Louis 



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

 variopora, Hall, 1881, Bryozoans of the 



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

 vera, Ulrich, (in press,) Geo. Sur. 111., vol. 



8, pi. 44, Ham. Gr. 

 verrucosa, Hall, 1883, Rep. St. Geol., pi. 



33, fig. 11, and Pal. N. Y., vol. 6, p. 110, 



Up. Held. Gr. 

 virgosa, Eichwald, 1860, Lethaea Rossica, 



p. 358, Up. Coal Meas. Probably not 



American, 

 wortheni, Ulrich, (in press,) Geo. Sur. 111., 



vol. 8, pi. 52, Low. Coal Meas. 

 FENESTRALIA, Prout, 1858, Trans. St. Louis 



Acad. Sci., vol. 1, p. 235. [Ety. from 



genus Fenestella.~\ Zoarium like Fenes- 



tella, from which it is distinguished by 



having two rows of cells on each side 



of the median ridge. Type F. stlu- 



dovici. 

 stludovici, Prout, 1858, Trans. St. 



Louis Acad. Sci., vol. 1, p. 235, St. 



Louis Gr. 

 stludovici var. compacta, Ulrich, (in 



press,) Geo. Sur. 111., vol. 8, pi. 59, St. 



Louis Gr. 

 FENESTRAPORA, Hall, 1885, Rep. St. Geol., p. 



36. [Ety. fenestra, opening ; poros, pore.] 



Forms of Fenestellidse having the 



branches connected by dissepiments, 

 two ranges of 

 cell apertures, 

 separated by a 

 carina bearing 



Sores ; noncel- 

 iliferous side 

 with conspicu- 

 ous pores. Type 

 F. biperforata. 

 biperforata, Hall, 

 1885, Rep. St. 

 nffi Geol pi. 2 fig. 

 17, Up. Held. 

 Gr. 

 infraporosa, Ulrich, 1886, Cont. to Amer. 



Pal., p. 14, Up. Held Gr. 

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



111., vol. 8, pi. 44 and 54, Ham. Gr. 

 FISTULIPORA, McCoy, 1849, Ann. and Mag. 

 Nat. Hist., 2d ser., vol. 3, p. 130. [Ety. 

 fistula, pipe ; poros, pore.] Incrusting 

 or massive; corallites long, cylindrical, 

 thick-walled, not in contact; tabulse 



FIG. 475. Fenestra 

 biperforata. Magn 

 nonporiferous side. 



>, Proc. Acad. 



o 



numerous ; cells circular, smooth-edged ; 



intervals between corallites filled with 



vesicular plates, tabulated. Type F. 



minor, 

 acervulosa, Rominger, 1866, Proc. Acad. 



Nat. Sci., p. 7, Ham. Gr. 

 astricta, Ulrich, (in press,) 



Geo. Sur. 111., vol. 8, pi. 



47 and 48, Ham. Gr. 

 canadensis, see Favosites 



canadensis. 

 carbonaria, Ulrich, 1884, 



Jour. Cin. Soc. Nat. Hist., 



vol. 7, p. 45, Up. Coal FIG 476.-Fistu- 



Meas. lipora astricta. 



clausa, see Meekopora ^tioif ^how* 



dausa. ing lunaiium" 



collina, Ulrich, (in press,) 



Geo. Sur. 111., vol. 8, pi. 47 and 48, 



Ham. Gr. 

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



111., vol. 8, pi. 47 and 48, Ham. Gr. 

 compressa, Rominger, 1866, Proc. Acad. 



Nat. Sci., p. 10, Keokuk Gr. 

 confertipora, Hall, 1881, (Thallostigma 



confertipora,) Trans. Alb. Inst., vol. 10, 



6184, and Pal. N. Y., vol. 6, p. 211, 

 am. Gr. 



constricta, Hall, 1881, (Lichenalia con- 



stricta,) Trans. Alb. Inst., vol. 10, p 



183, and Pal. N. Y., vol. 6, p. 227, 



Ham. Gr. 



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



111., vol. 8, pi. 47 and 48, Ham. Gr. 

 crassa, Rominger, 1866, Proc. Acad. Nat. 



Sci., p. 8, Ham. Gr. 



decipiens, Hall, 1881, (Thallostigma de- 

 cipiens,) Trans. Alb. Inst., vol. 10, p 

 187, and Pal. N. Y., vol. 6, p. 232 

 Ham. Gr. 



densa, Hall, 1881, (Thallostigma densa,) 

 Trans. Alb. Inst., vol. 10, p. 186, and 

 Pal. N. Y., vol. 6, p. 231, Ham. Gr. 

 digitata, Hall, 1881, (Thallostigma digitata,) 

 Trans. Alb. Inst., vol. 10, p. 185, and 

 Pal. N. Y., vol. 6, p. 229, Ham. Gr! 

 ekgans, see Pinacotrypa elegans. 

 eriensis, Rominger 1866, Proc. Acad. Nat. 



Sci., p. 8, Ham. Gr. 



excellens, Ulrich, 1884, Jour. Cin. Soc. 

 Nat. Hist., vol. 7, p. 46, Kaskaskia Gr. 

 flabellata, see Chiloporella flabellata. 

 flabellum, see Dichotrypa flabellum. 



foordi, Ulrich, (in 

 press,) Geo. Sur. 111., 

 vol. 8, pi. 47 and 48, 

 Ham. Gr. 



halli, Rominger, 1866, 

 Proc. Acad. Nat. Sci., 



'p. 6, Niagara Gr. 

 eli 



helios, Rominger, 1866, 

 Proc. Acad. Nat. Sci., 

 p. 7, Corniferous Gr. 

 hemispherica, Hall, 

 1881, (Callopora 

 hemispherica,) Trans. Alb. Inst., vol. 

 10, p. 183, and Pal. N. Y., vol. 6, p. 226, 

 Ham. Gr. 



FiG.477. Fistulipora 

 foordi. Opercular 

 cover x 50. 



