AIsTIMAL KIISTGDOM. 



SUB-KINGDOM PROTISTA. 



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

 CLASS PORIFERA.— [Ety. poms, a pore; feiv, to bear.] 



CLASS RHIZOPODA. — Dentalina, Eozoon, Fusulina, Xullipora, Receptaculites, Rotalia. 



CI^ASS PORIFERA. — Archeoc yiithu&, Astniicspongia, A.stylospon^ia, Aulooopina, Brachi- 

 ospongia, Calathium,Cneiiiidiiiin, Conopteriuin, Eospongia, Palfeacis, Palseomanon, 

 RhaV)daria, Trachyum, Trichospoiigia. 



INCERT^ 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. 



Arl'heocyatiiits, BiUings, 1861, Pal. Fobs., 

 vol. 1, Potsdam (xr. [Ety. arcjie, ])e- 

 ginning ; fi/nlhiin, a I'up.] 



atlanticuB, Billings, 1861, Pal. Foss., vol. 

 1, Potsdam Or. [Ety. mythological 

 name.] 



minganensis, Billings, l.S.)9, (Petraiamin- 

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

 Calcif. Gr. [Ety. proper name.] 



profundus, Billings, 1861, Pal. Fo.ss., vol. 

 1, Potsdam Gr. [Si,n'. <li'ei).] 



rensseliericus. Ford, LS7:!, Am. Jour. Sci. 

 & Arts, 3rd ser., vol. 5, I>ow. Potsdam 

 Gr. [Ety. proper name.] 

 AstrjHospongi.\, Roemer, 1860, Sil. Fauna, 

 des West Tenn. [Ety. astrxa, from 

 aster, a star; spoagia, sponge.] 



hamiltonensis, ]\Ieek li Worthen, 1866, 

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

 [Ety. proper name.] 



meniscus, Roemer, 1848, (Blumenbach- 

 ium miniscus) Leonh. A Bronn's 

 Jahrb., Niagara Gr. [Ety. ifimiskos, 

 a little moon.] 

 AsTYLOSPONGiA, Roemer, 1860, Sil. Fauna, 

 des West Tenn. [Ety. itslyhs, without 

 a pillar or prop; xpuugia, sponge.] 



Christiana, Meek & Wortlien, 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. 

 imbricatus, imbricated ; articulatm, 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.] 

 perryi, Billings, 1861, Geol. Vermont, 



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

 prwmorsu, Goldfuss, 1826, (Siphonia pra?- 



mor.sa) 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 depression.s 



on the outer surface.] 

 Aui.ocoi'iN.\, Billings, 1875, Can. Nat. & Geol. 



[Ety. aiihkopeo, cut into pipes.] 

 sj;ranti, Billings, 187.5, Can. Nat. & Geol., 



Niagara Gr. [Ety. proper name.] 

 Blinnenbachlnm, Konig, 1820, Icones, fossiles, 



sectiles, 

 ineiiixcmt, see Astrreospongia meniscus. 

 Brachiospongia, Marsh, 1867, Am. Jour. 



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



br<ic]tluni, an arm; spongia, sponge.]" 

 digitata, Owen, 1857, (Scyphia digitata) 



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



having fingers or toes.] 

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



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



[Ety. proper name.] 

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



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



proper name.] 



