ANIMAL KINGDOM 



SUB-KINGDOM PROTISTA. 



CLASS RHIZOPODA.— [Ety. rhiza, a root ; podes, feet.] 

 CLASS PORIFERA.— [Ety. ponn^, a pore ; few, to bear.] 



CLASS RHIZOPODA. — Dentalina, Eozoon, Fiisulina, Nullipora, Receptaculites, Rotalia. 



CLASS PORIFERA.— Archeocyathus, Astrseospoiigia, Astylospon^ia, Aulocopina, Brachi- 

 ospongia, Calathium, Cnemidium, Conopterium, Eospongia, Palreacis, Palaeomanon, 

 Rhabdaria, Trachyum, Triehospoiigia. 



INCERTiE SEDIS.— Pasceolus, Ribeiria. The latter genus is placed by Woodward in 

 the class Lamellibranchiata. Salter referred it to the Crustacea. It is very doubt- 

 ful whether it is American. 



Archeocyathus, Billings, 1861, Pal. Foss., 

 vol. 1, Potsdam Gr. [Ety. arche, be- 

 ginning ; cyathns, a cup.] 



atlanticus, Billings, 1861, Pal. Foss., vol. 

 1, Potsdam Gr. [Ety. mythological 

 name. ] 



minganensis, Billings, 1859, (Petraia min- 

 ganensis) Can. Nat. & Geol., vol. 4, 

 Calcif. Gr. [Ety. proper name.] 



profundus, Billings, 1861, Pal. Foss., vol. 

 1, Potsdam Gr. [Sig. deep.] 



rensselsericus, Ford, 1873, Am. Jour. Sci. 

 & Arts, 3rd ser., vol. 5, Low. Potsdam 

 Gr. [Ety. proper name.] 

 AsTRiROSPONGiA, Rocmer, 1860, Sil. Fauna, 

 des West Tenn. [Ety. astrsea, from 

 aster, a star; spongr/a, sponge.] 



hamiltonensis, Meek & Wortlien, 1866, 

 Proc. Chi. Acad. Sci. , vol. 1 , Ham. Gr. 

 [Ety. proi)er name.] 



meniscus, Roemer, 1848, (Blumenbach- 

 ium miniscus) Leonh. & Bronn's 

 Jahrb., Niagara Gr. [Ety. meniskos, 

 a little moon.] 

 AsTYLOSPONGiA, Rocmer, 1860, Sil. Fauna, 

 des West Tenn. [Ety. as^tos, without 

 a pillar or prop; tipongia, sponge.] 



Christiana, Meek & Worthen, 1868, Geo. 

 Sur. 111., vol. 3, Niagara Gr. [Ety. 

 proper name.] 



imbricato-articulata, Roemer, 1848, (Si- 

 phonia imbricato-articulata) Leonh. & 

 Bronn's Jahrb., Niagara Gr. [Ety. 

 imhricatus, imbricated ; articiilatus, ar- 

 ticulated.] 



inciso-lobata, Roemer, 1848, (Spongia 



inciso-lobata) Leonh. & Bronn's 



Jahrb., Up. Sil. [Sig. cut into lobes.] 

 bursa, Hall, 1876, 28th Reg. Rep., Niagara 



Gr. [Sig. a purse.] 

 parvula, Billings, 1861, Pal. Foss., vol. 1, 



Trenton Gr. [Sig. small.] 

 perry i, Billings, 1861, Geol. Vermont, 



Black Riv. Gr. [Ety. proper name.] 

 prsemorsa, Goldfuss, 1826, (Siphonia prae- 



morsa) Petref. Germ., Niagara Gr. 



[Sig. jagged as if bitten off.] 

 stellatim-sulcata, Roemer, 1848, (Spongia 



stellatim-sulcata) Leonh. & Bronn's 



Jahrb., Up. Sil. [Sig. star-furrowed; 



in allusion to the star-like depressions 



on the outer surface.] 

 AuLocopiNA, Billings, 1875, Can. Nat. & Geol. 



[Ety. aulokopeo, cut into pipes.] 

 granti, Billings, 1875, Can. Nat. & Geol., 



Niagara Gr. [Ety. proper name.] 

 Blumenhackium, Konig, 1820, Icones, fossiles, 



sectiles, 

 meniscus, see Astrseospongia meniscus. 

 Brachiospongia, Marsh, 1867, Am. Jour. 



Sci. & Arts, 2nd series, vol. 44. [Ety. 



brachium, an arm; spongia, sponge.] 

 digitata, Owen, 1857, (Scvphia digitata) 



Geo. of Ky., vol. 2, Cin'ti Gr. [Sig. 



having fingers or toes.] 

 roemerana, Marsh, 1867, Am. Jour. Sci. 



and Arts, 2nd series, vol. 44, Cin'ti Gr. 



[Ety. proj^er name.] 

 lyoni, Marsh, 1867, Am. Jour. Sci. & Arts, 



2nd series, vol. 44, Cin'ti Gr. 

 proper name.] 



•[Ety. 



