BRYOZOA. 



101 



Semicoscinium, Prout, 1859, Trans. St. Louis 



Acad. Sci. [Sig. somewhat like fossils 



of the genus Cosdmum.] 



eriense, Prout, 1860, Trans. St. Louis 



"K Acad. Sci., Devonian. [Ety. proper 



name.] 

 V rhomboideum, Prout, 1859, Trans. St. 

 Louis Acad. Sci., Up. Held. Gr. [Sig. 

 rhomboidal.] 

 V tuberculatum, Prout, 1860, Trans. St. 

 Louis Acad. Sci., Up. Held. Gr. [Sig. 

 tuberculated.] 

 Septopoea, Prout, 1859, Trans. St. Louis 

 Acad. Sci. [Ety. septum, partition or 

 division ; pora, a pore.] 

 cestriensis, Prout, 1850, Trans. St. Louis 

 Acad. Sci., Chester Gr. [Ety. proper 

 name.] 

 Stictopoha, Hall, 1847, Pal. N. Y., vol. 1. 

 [Ety. gtidos, spotted or punctured ; 

 poros, a pore.] 

 acuta, Hall, 1847, Pal. N. Y., vol. 1, Tren- 

 ton Gr. [Sig. sharp.] 

 carbonaria, JVteek, 1871, Proc. Acad. Nat. 

 Sci. Phil., Coal Meas. [Sig. from the 

 Coal Measures.] 

 crassa, Hall, 1852, Pal. N. Y., vol. 2, Clin- 

 ton Gr, [Sig. thick.] 

 elegantula. Hall, 1847, Pal. N. Y., vol. 1, 



Trenton Gr. [Sig. quite elegant.] 

 fenestrata. Hall, 1847, Pal. N. Y., vol 

 1, Chazy Gr. [Sig. open, having 

 , windows.] 



V gilberti. Meek, 1871, Proc. Acad. Nat. Sci. 

 Phil., Corniferous Gr. [Ety. proper 

 name.] 

 glomerata, Hall, 1847, Pal. N. Y., vol. 1, 

 Chazy Gr. [Sig. confused, out of 

 order.] 

 labyrinthica. Hall, 1847, Pal. N. Y., vol. 

 1, Birdseye Gr. [Sig. intricate.] 

 j^ lichenoides. Meek, 1873, Pal. Ohio, vol. 

 " 1, Corniferous Gr. [Sig. resemblmg 



magna. Hail & Whitfield, 1875, Pal. Ohio, 

 vol. 2, Clinton Gr. [Sig. great, large.] 



punctipora. Hall, 1852, Pal. N. Y., vol. 2, 

 Niagara Gr. [Sig. punctus, a puncture ; 

 pora, a pore.] 



ramosa. Hall, 1847, Pal. N. Y., vol. 1, 

 Birdseye Gr. [Sig. branching.] 



raripora, Hall, 1852, Pal. N. Y., vol, 2, 

 Clinton Gr. [Sig. cells distant.] 



serrata. Meek, 1875, Pal. Ohio, vol. 2, 

 Coal Meas. [Sig. serrated.] 



shafferi. Meek, 1872, Proc. Acad. Nat. Sci. 

 Phil., Cin'ti Gr. [Ety. proper name.] 



similis. Hall, 1876, 28th Reg. Rep., Niag- 

 ara Gr. [Sig. similar.] 

 A- sulcata, Winchell, 1866, Rep. Low. Penin. 

 Mich., Ham. Gr. [Sig. furrowed.] 



variabilis, Prout, 1866, Trans. St. Louis 

 Acad. Sci., Up. Sll. [Sig. variable, 

 not always the same.] 

 Synocladia, King, 1849, Trans. Geol. Soc. 

 Lond., 2d Ser., vol. 3. [Ety. syn. to- 

 gether; Uados, a young branch.] 



biserialis. Swallow, 1858, Trans. St. Louis 

 Acad. Sci., Up. Coal Meas. [Sig. in 

 allusion to the two rows of cellules.] 

 T^niopora, Nicholson, 1874, Geo. Mag. 

 Lond., n. s., vol. 1. [Ety. iahiia, a rib- 

 bon; poros, a pore.] 



exigua, Nicholson, 1874, Geo. Mag. Lond., ^_ 

 n. s., vol. 1, Ham. Gr. [Sig. little, f 

 small.] 



penniformis, Nicholson, 1874, Geo. Mag. =^ 

 Lond. n. s., vol. 1, Hani. Gr. [Sig. i 

 resembling a feather.] 

 Thamniscus, King, 1849, Perm. Foss. [Ety. 

 thamniskos, a little shrub.] 



niagarensis. Hall, 1876, 28th Reg. Rep., 

 Niagara Gr. [Ety. proper name.] 

 Trematopoka, Hall, 1852, Pal. N. Y., vol. 2. 

 [Ety. trema, a hole; poros, a pore.] 



aspera. Hall, 1852, Pal. N. Y., vol. 2, Ni- 

 agara Gr. [Sig. rough.] 



coalescens. Hall, 1852, Pal. N. Y., vol. 2, 

 Niagara Gr. [Sig. uniting together.] 



constricta, Hall, 1874, 26th Rog Rep., 

 Low. Held. Gr. [Sig. constricted.] 



corticosa, Hall, 1874, 26th Reg. Rep., 

 Low. Held. Gr. [Sig. like thick bark.] 



densa. Hall, 1874. 26th Reg. Rep., Low. 

 Held. Gr. [Sig. thick, close.] 



dichotoma, Hall, 1852, (Diamesopora 

 dichotoma) Pal. N. Y., vol. 2, Niagara 

 Gr. [Sig. dividing into two.] 



echinata. Hall, 1876, 28th Reg. Rep., Ni- 

 agara Gr. [Sig. set with spines.] 



fragilis, Winchell, 1863, Proc. Acad. Nat. 

 Sci., Chemung Gr. [Sig. frail.] 



granulifera, Hall, 1852, Pal. N. Y., vol. 

 2, Niagara Gr. [Sig. bearing granules.] 

 The same species is marked "n. sp. 

 in 28th Reg. Rep., probably by mis- 

 take. 



infrequens. Hall, 1876, 28th Reg. Rep., 

 Niagara Gr. [Sig. not frequent.] 



maculosa. Hall, 1874, 26th Reg. Rep., 

 Low. Held. Gr. [Sig. spotted.] 



minuta. Hall, 1876, 28th Reg. Rep., Ni- 

 agara Gr. [Sig. very small.] 



osculum. Hall, 1876, 28th Reg. Rep., Ni- 

 agara Gr. [Sig. pretty mouth.] 



ostiolata, Hall, 1852, Pal. N. Y., vol. 2, 

 Niagara Gr. [Sig. having small open- 

 ings.] 



ponderosa, Hall, 1874, 26th Reg. Rep., 

 Low. Held. Gr. [Sig. heavy.] 



punctata. Hall, 1852, Pal. N. Y., vol. 2, 

 Niagara Gr. [Sig. dotted.] 



regularis. Hall. 1874, 26th Reg. Rep., 

 Low. Held. Gr. [Sig. in allusion to 

 the regular arrangement o£ the cells.] 



rhombifera. Hall, 1874, 26th Reg. Rep., 

 Low. Held. Gr. [Sig. rhomb-bearing.] 



signatus. Hall, 1874, 26th Reg. Rep., 

 Low. Held. Gr. [Sig. marked.] 



solida. Hall, 1852, Pal. N. Y., vol. 2, Ni- 

 agara Gr. [Sig. solid.] 



sparsa, Hall, 1852, Pal. N. Y., vol. 2, Ni- 

 agara Gr. [Sig. scattered.] 



spinulosa. Hall, 1852, Pal. N. Y., vol. 2, 

 Niagara Gr. [Sig. full of little spines.] 



