316 



MOLIMSCOIDA. 



!•()!. 



Fig. )00. -Polypora 

 biscriaUi. Aper- 

 ture litiving the 

 central perfora- 

 tion of the cover 

 closed, x .yd. 



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

 III., vol. 8, pi. 61, Kaskaskia Gr. 



arkonensis, S. A. Miller, 1883, 2d ed. Am. 

 Pal. Foss., p. 292, Ham. Gr. Proposed 

 instead of P. tuberculata, Nicholson, in 

 < reo. Mag. for April, 1874, and Rep. Pal. 

 Prov. Out., p. 100, tigs. 37, a, b, c. 

 Found at Arkona, township of Hosa li- 

 quet, Canada. 



arta, Hall, 1879, (Fenestella arte,) 32d 

 Rep. N. Y. St. Mus. Nat. Hist., p. 163, 

 Low. Held. Gr. 



biarmica, Keyserling, 1846, Geognost. 

 Beobacht, p. 191. Geinitz referred a 

 form from the Coal Meas., and Prout 

 referred one from the Kaskaskia ( i r. to 

 it. Probably not an American species, 

 biseriate, Ulrich, (in 

 press,) Geo. Sur. 111., 

 vol. 8, pi. 60, Warsaw 

 and St. Louis (Jr. 

 blandida, I'lru-h, 1886, 

 Contri. to Amer. Pal., 

 p. 18, Up. Held. (.r. 

 brevisulcata, Hall, 1881, 

 (Fenestella brevisul- 

 cataJTrans. Alb. Inst., 

 vol. 10, p. 26, and Pal. 

 N. Y., vol. 6, p. 168, Up. Held. Cr. 



burlingtonensis, Ulrich, (in press,) Geo. 

 Sur. III., vol. 8, pi. 69, Burlington Gr. 



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

 153, Up. Held. Gr. 



celsipora, Hall, 1881, (Fenestella celsi- 

 pora,) Trans. Alb. Inst., vol. 10, p. 24, 

 and Pal. N. Y., vol. 6, p. 150, Up. 

 Held Gr. 



celsipora var. minima, Hall. 1881, (Fen- 

 estella celsipora var. minima,) Trans. 

 Alb., Inst, vol. 10, p. 24, and Pal. N. 

 Y., vol. 6, p. 151, Up. Held. (ir. 



celsipora var. minor, Hall, 1881, (Fenes- 

 tella, celsipora var. minor,) Trans. Alb. 

 Inst, vol. 10, p. 24, and Pal. N. Y., vol. 

 6, p. 151, Up. Held. <ir. 



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

 111., vol. 8, pi. 60, Kaskaskia < ir. 



compacte, Hall, 1879, (Fenestella com- 

 pacte,) 32d Rep. N. Y. St. Mus. Nat. 

 Hist., p. 163, Low. Held. Gr. 



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

 111., vol. 8, pi. 60, Kaskaskia (ir. 



compressa, Hall, 1879, (Fenestella Com- 

 pressa,) 32d Rep. N. Y. St. Mus. Nat. 

 Hist., p. 164, Low. Held. Gr. 



corticosa, Ulrich, (in press,) (ieo. Sur. 111., 

 vol. 8, pi. 61, Kaskaskia Gr. 



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

 p. 170, Up. Held. Gr. 



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

 vol. 8, pi. 61, Up. Coal Meas. 



cultellata, Hall, 1881, (Fenestella cultel- 

 late,) Trans. Alb. Inst., vol. 10, p. 21, and 

 Pal. N. Y., vol. 6, p. 160, Up. Held. Gr. 



distans, Hall, 1881, (Fenestella distans,) 

 Trans. Alb. Inst., vol. 10, p. 24, and Pal. 

 N. Y., vol. 6. p. 161, Up. Held. Gr. 



elegans, Hall, 1874, 26th Rep. N. Y. St. 

 Mus. Nat. Hist, p. 97, Low. Held. Gr. 



elongate, Hall, 1882, Rep. St. Geol- 

 and Pal. N. Y., vol. 6, p. 153, Up- 

 Held. Gr. 



eudora, Hall, 1887, Pal. N. Y., vol. t>, p. 



58, Low. Held. Gr. 



fistulata, Hall, 1884, (Fenestella fistulata,) 

 36th Rep. N. Y. St. Mus. Nat, Hist., p. 



59, Ham. Gr. 



flabelliformis, Hall, 1881, (Fenestella fla- 



belliformis.) Trans. All). Inst., vol. 10, 



p. 28, and Pal. N. Y., vol. 6, p. 1(51, Up. 



Held. Gr. 

 gracilis, Prout, 1860, Trans. St. Looia 



Acad. Sci., p. 580, Warsaw Gr. 

 grandia, Toula, 1875, N. Jahrbuch, p. 880, 



Carboniferous, 

 granilinea, Hall, 1881, (Fenestella grani- 



linea,) Trans. Alb. Inst., vol. 10, p. 27, 



and Pal. N. Y., vol. »i, p. 154, Up. 



Held. Gr. 

 hallana, Prout, 1860, Trans. St. Louil 



Acad. Sci., vol. 1, p. 580, Warsaw < ir. 

 hamiltonensis, Prout, 1866, Geo. Sur. 111. 



vol. 2. p. 423. Ham. Gr. 

 hexagonalis, Hail, 1881, (Fenestella hex 



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



27, and Pal. N. Y., vol. ti, p. 164, Dp 



Held. Gr. 

 hexagonalis var. foraminnloM, Hall, 1881 



(Fenestella hexagonalis var. foramina 



losa,) Trans. Alb. Inst., vol. 10, p. 27 



and Pal. N. Y., vol. <>, p. 165, I > 



Held. <ir. 

 idothea, Hall, 1879, (Fenestella idothea,) 



82d Rep. N. Y. St. Mus. Nat. Hist, p. 97, 



Low. Held. ( ir. 

 imbricate, Prout, 18<i<>, Trans. St. Ixmis 



Acad. Sci., vol. 2, p. 412, Devonian, 

 impressa, Ulrich, 1888, Bull. Denison Univ., 



vol. 4, p. 72, Cuyahoga Shale, 

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



I(i7, Niagara (ir. 

 intermedia, Prout, 1868, Trans. St. Louis 



Acad. Sci., vol. 1, p. 272, Up. Held Gr. 

 lsevinodate, Hall, 1881, (Fenestella laevi- 



nodata,) Trans. Alb. Inst., vol. 10, p. 28, 



and Pal. N. Y., vol. 6, p. 169, Up. 



Held. (ir. 

 I.tvistriate, Hall, 1883, Rep. St. ( ieol. and 



Pal. N. Y., vol. 6, p. 159, Dp. Held. (ir. 

 largissima, Hall, 1881, (Fenestella largis- 



sima), Trans. Alb. Inst., vol. 10, p. 22, 



and Pal. N. Y., vol. 0, p. 166, Up. 



Held. (ir. 

 lilaa, Hall, 1874,26th Rep. N. Y. St. Mus. 



Nat. Hist,, p. 62, Low. Held. (ir. 

 maccoyana, Ulrich, (in press,) (ieo. Sur. 



111., vol. 8, pi. 59. Keokuk (ir. 

 megastoma, DeKoninck, 1863, Quar. Jour. 



(Ieo. Soc, vol. 19, p. 5, Carboniferous, 

 mexicana, Prout, 1858, Trans. St. Louis 



Acad. Sci., vol. 1, p. 270, Permian (ir. 

 mutabilis, Hall, 1881, (Fenestella muta- 



bilis,) Trans. Alb. Inst., vol. 10, p. 25, 



and Pal. N. Y., vol. 6, p. 166, Up. 



Held. (ir. 

 nexa, Hall, 1881, (Fenestella nexa,) Trans. 



Alb. Inst., vol. 10, p. 25. and Pal. N. Y., 



vol. 6, p. 165, Up. Held. <ir. 



