BRYOZOA. 



99 



Heterodictya, Nicholson, 1875, Geo. Mag., 



vol. 2, n. 8. [Ety. heteros, irregular; 



dictyon, a net.] The correct ortho- 

 graphy is Heterodictyon. 

 gigantea, Nicholson, 1875, Geo. Mag., vol. 



2, Low. Carb. [Sig. large, gigantic] 

 Hippothoa, Lamouroux, 1821, Expos, method. 



inflata, see Alecto inflata. 

 HoBNERA, Lamouroux, 1821, Expos, method. 



des genres de I'Ordre des Pol. [Ety. 



proper name.] 

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



Niagara Gr. [Sig. divided into two; 



forked.] 

 IcHTHVORACHis, McCoy, 1844, Carb. Foss. 



Ireland. [Ety. ichthys, a fish ; rachis, 



a backbone.] 

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



Held. Gr. [Ety. mythological name.] 

 Intricahia, Defrance, 1823, Dictionnaire des 



Sciences Naturelles. [Ety. intrico, to 



entangle.] 

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



Trenton & Cin'ti Gr. [Sig. net- 

 worked.] 

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



[Sig. from resemblance to a marine 



lichen.] 

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



Niagara Gr. [Sig. concentrically 



wrinkled.] 

 concentrica rar. parvula. Hall, 1876, 28th 



Reg. Rep. N.Y., Niag. Gr: [Sig. small.] 

 LvBOPOKA, Hall, 1857, Proc. Am. Assoc. Ad. 



Sci., vol. 10. [Ety. lyra, a lute ; pora, 



a pore.] 

 lyra, Hall, 1857, Proc. Am. Ass. Ad. Sci., 



vol. 10, Kaskaskia Gr. [Sig. a lute.] 

 quincuncialis, Hall, 1857, Proc. Am. Ass. 



Ad. Sci., vol. 10, Kaskaskia Gr. [Sig. 



in the form of a quincunx ; an oblique 



arrangement.] 

 retrorsa, Meek & Worthen, 1868, Geo.Sur. 



111., vol. 3, Burlington Gr. [Sig. 



turned back.] 

 subquadrans, Hall, 1857, Proc. Am. Ass. 



Ad. Sci., vol. 10, Kaskaskia Gr. [Sig. 



somewhat square.] 

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



[Sig. ancient Eschara.l 

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

 agara Gr. [Sig. rough.] 

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



Held. Gr. [Sig. two-leaved.] 

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



Low. Held. Gr. [Sig. incrusting other 



objects.] 

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

 agara Gr. [Sig. spotted.] 

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

 ara Gr. [Sig. a small piece.] 

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



Niagara Gr. [Sig. a little ball.] 

 Ph^.nopoba, flail, 1852, Pal. N. Y., vol. 2. 



[Ety. phaino, to open or make a 



window; poros, a pore.] 

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



Clinton Gr. [Sig. starred.] 



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



Clinton Gr. [Ety. like a sword.] 

 expansa. Hall & Whitfield, 1875, Ohio 



Pal., vol. 2, Clinton Gr. [Sig. spread 



out.] 

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



Clinton Gr. [Sig. spread out.] 

 multipora, Hall, 1851, Geo. Lake Sup. 



Land. Dist.. vo.l. 2, Trenton Gr. [Sig. 



having many pores.] 

 Phyi.lopoka, King, 1849, Ann. Nat. Hist., 



2d ser., vol. 3. [Ety. phyllon, a leaf ; 



poros, a pore.] 

 ehrenbergi, Geinitz, 184 6, (Gorgonia 



ehrenbergi) Grundriss, Permian Gr. 



[Ety. proper name.] 

 PoLYPOEA, McCoy, 1845, Carb. Foss. Ireland. 



[Ety. polys, many; poros, a pore.] 

 biarmica, (?) Keyserling, 1846, Russia 



and the Ural Mts., Geinitz referred a 



form from the Coal Meas. to this 



species, and Prout referred a form 



from the Chester Gr. to it. [Sig. 



strong-jointed.] 

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



Held. Gr. [Sig. elegant.] 

 gracilis, Prout, 1860, Trans. St. Louis 



Acad. Sci., Keokuk Gr. [Sig. slender.] 

 halliana. Prout, 1860, Trans. St. Louis 



Acad. Sci., St. Louis Gr. [Ety. proper 



name.] 

 liamiltonensis, Prout, 1806, Geo. Sur. 111., 



vol. 2, Ham. Gr. [Ety. proper name.] 



imbricata, Prout, 1866, Trans. St. Louis 

 Acad. Sci., Devonian. [Sig. imbri- 

 cated.] 



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

 Niagara Gr. [Sig. incipient.] 



intermedia, Prout, 1858, Trans. St. Louis 

 Acad. Sci., Up. Held. Gr. [Sig. inter- 

 mediate.] 



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

 Held. Gr. [Ety. proper name.] 



mexicana, Prout, 1858, Trans. St. Louis 

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

 name.] 



(?) psyche, Billings, 1874, Pal. Foss., 

 vol. 2, Devonian. [Ety. mythological 

 name.] 



pulchella, Nicholson, 1874, Geo. Mag. 

 Loud., n. s., vol. 1, Corniferous Gr. 

 [Sig. beautiful.] 



rigida, Prout, 1866, Trans. St. Louis Acad. 

 Sci., Ham. Gr. [Sig. rigid.] 



shumardi, Prout, 1858, Trans. St. Louis 

 Acad. Sci., Up. Held. Gr. [Ety. proper 

 name.] . 



stragula, "White, 1874, Rep. Invert. Foss., 

 Carb. [Sig. outward covering or gar- 

 ment.] 



submarginata, Meek, 1872, Pal. E. Neb., 

 Coal Meas. [Sig. somewhat like P. 

 marginata.] This species was referred 

 by Geinitz to P. marginata of McCoy. 



tenella, Nicholson, 1874, Geo. Mag. Lond. 

 n. s., vol. 1, Corniferous .Gr. [Sig. 

 delicate.] 



