44 



PROTISTA. 



elegantulus, Billings, 1865, Pal. Foss., vol, 



1, Calcif. Gr. [Sig. elegant.] 



formosus, Meek & Worthen, 1870, Proc. 



Acad. Nat. Sci., Niagara Gr. [Sig. 



beautiful.] 

 fungosus, Hall, 1861, Geo. Rep. Wfs., 



Galena Gr. [Sig. spongy.] 

 globularis, Hall, 1861, Supp. Geo. Rep. 



Wis., Galena Gr. [Sig. globular.] 

 hemisphericus. Hall, 1861, Geo. Rep. Wis. 



Niagara Gr. [Sig. hemispherical.] 

 infundibulus, Hall, 1861, Geo. Rep. Wis., 



Niagara Gr. [Sig. a funnel.] 

 insularis, Billings, 1866, Catal. Sil. Foss. 



Antic, Anticosti Gr. [Sig. upon an 

 ' island.] 

 iowensis, Owen, 1852, (Selenoides iowen- 



sis) Geo. Rep. Wis., Iowa and Minn. 



[Ety. proper name.] 

 jonesi, Billings, 1865, Pal. Foss., vol. 1, 



Low. Held. Gr. [Ety. proper name.] 

 neptuni, De France, 1827, Diet, des Sci. 



Nat., vol. 45, Trenton Gr. [Ety. 



proper name.] 

 occidentalis, Salter, 1859, Can. Org. Rem. 



Decade 1, Trenton Gr. [Sig. Western.] 

 ohioensis. Hall & Whitfield, 1875, Ohio 



Pal., vol. 2, Niagara Gr. [Ety proper 



name.] 

 oweni. Hall, 1861, Geo. Rep. Wis., Galena 



Gr. [Ety. proper name.] 

 reticulatus, Owen, 1840, (Orbituloides 



reticulata) Rep. on Min. lands, Niagara 



Gr. [Sig. reticulated.] 

 subturbinatus. Hall, 1863, Trans. Alb. 



Inst., vol. 4, Niagara Gr. [Sig. some- 

 what top-shaped.] 

 sulcatus, Owen, 1844. This name was pre- 

 occupied and the species is now named 



R. oweni. 

 Rhabdakia, Billings, 1865, Pal. Foss., vol. 1. 



[Ety. rhabdos, a rod.] 

 fragilis, Billings, 1865, Pal. Foss., vol. 1, 



Calcif. Gr. [Sig. frail, brittle.] 

 furcata, Billings, 1865, Pal. Foss., vol. 1, 



Calcif. Gr. [Sig. forked.] 



RiBEiRiA, Sharpe, 1853, Jour. Geo. Soc, vol. 

 9. [Ety. proper name (?).] 

 (?) calcifera, Billings, 1865, Pal. Foss., 

 vol. 1, Calcif. Gr. [Ety. from the Cal- 

 cif erous Group.] 

 (?) longiuscula, Billings, 1865, Pal. Foss., 

 vol. 1, Calcif. Gr. [Sig. somewhat the 

 longest.] 

 RoTALiA, Lamarck, 1804, Ann. Mus. [Ety. 

 rota, a wheel.] 

 baileyi. Hall, 1858, Trans. Alb. Inst., vol. 

 4, Warsaw Gr. [Ety. proper name.] 

 Scyphia, Oken, 1815, Lehrb. Naturg. 

 digitata, see Brachiospongia digitata. 

 steUata, Troost, 1840. Not clearly defined. 

 Selenoides, Owen, 1852. Syn. for Receptacu- 

 lites. 

 iowensis, Owen, 1852, see ReceptacuHtes 

 iowensis. 

 SipJionia, Parkinson, 1820, Organ. Rem. 

 cratera, see Palseomanon cratera. 

 imbricato-articulata, see Astylospongia im- 



bricato-articulata. 

 prssmorsa, see Astylospongia praemorsa. 

 Sphenopoterium, Meek & Worthen, 1866. A 

 Syn. for Palseacis. 

 compressum, see Palseacis compressus. 

 cuneatum, see Palaeacis cuneatus. 

 enorme, see Palseacis enormis. 

 enorvfie var. depressum, see Palasacis enormis 



var. depressus. 

 obtusum, see Palseacis obtusus. 

 Spongia, Linnseus, 1789, Systema Naturae. 



inciso-lobata, see Astylospongia inciso- 

 lobata. 

 Htellatim-sulcata, see Astjjlospongia stel- 

 latim-sulcata. 

 Traciiyum, BilHngs, 1865, Pal. Foss., vol. 1. 

 [Ety. trachm, rough, rugged.] 

 cyathiforme, Billings, 1865, Pal. Foss., 

 vol. 1, Quebec Gr. [Sig. cup-shaped.] 

 rugosum, Billings, 1865, Pal. Foss., vol. 1, 

 Quebec Gr. [Sig. wrinkled.] 

 Trichospongia, Billings, 1865, Pal. Foss., 

 vol. 1. [Ety. trichias, to show hairs ; 

 spongia, a sponge.] 

 sericea, BiUings, 1865, Pal. Foss., vol. 1, 

 Calciferous Gr. [Sig. silky.] 



