Polypi. 



Protarea, Edwards & Haime, 1849, Pol. 



Foss. des Terr. Palseoz. [Ety. protos, 



first, formerly ; araios, porous, spongy.] 

 vetusta, Hall, 1847, (Porites vetusta) Pal. 



N. Y,, vol. 1, Trenton & Hud. Riv. Gr. 



[Sig. ancient.] 

 verneuili, Edwards & Haime, 1851, Pol. 



Foss. des Ter. Palaeoz., Silurian. (?) 



[Ety. proper name.] 

 Ptilograptus, Hall, 1865, Can. Org. Rem., 



Decade 2. [Ety. ptilon, a feather; 



grapko, to write.] 

 geinitzianus, Hall, 1865, Can. Org. Rem., 



Decade 2, Quebec Gr. [Ety. proper 



name.] 

 plumosus, Hall, 1865, Can. Org. Rem., 



Decade 2, Quebec Gr. [Sig. plume- 

 like.] 

 Ptychophyllum, Lonsdale, 1839, Sil. Syst. 



[Ety. ptyche, a ridge or wrinkle ; phyl- 



lon, a plant.] 

 canadense, Billings, 1862, Pal. Foss., vol. 



1, Mid. Sil. [Ety. proper name.] 

 stokesi, Edwards & Haime, 1851, Mon. 



Pol. Foss. des Terr. Palseoz., Niagara 



Gr. [Ety. proper name.] 

 Quenstedtia, Rominger, 1876, Foss. Corals. 



[Ety. proper name.] 

 cornuta, Billings, 1859,(Aulopora cornuta) 



Can. Jour., vol. 4, Corniferous Gr. 



[Sig. horned.] 

 niagarensis, Rominger, 1876, Foss. Corals, 



Niagara Gr. [Ety. proper name.] 

 umbellifera, Billings, 1859, (Aulopora 



umbellifera) Can. Jour., vol. 4, Cor- 

 niferous Gr. [Sig. umbrella-bearing.] 

 Rastrites, Barrande, 1850, Graptolites de 



Boheme. [Sig. a rake.] 

 barrandi, Hall, 1859, Pal. N. Y., vol. 3, 



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



This may be only part of Graptolithus 



gracilis. 

 Retiograptus, Suess, 1851, Ueber Bomischen 



Graptolithen. [Ety. rete, a net ; grapho, 



to write.] 

 barrandi, Hall, 1860, 13th Reg. Rep., Hud. 



Riv. Gr. [Ety. proper name.] 

 eucharis, Hall, 1865, Can. Org. Rem., 



Decade 2, Utica slate. [Sig. very 



graceful.] 

 geinitzianus, Hall, 1859, Pal. N. Y., vol. 



3, Hud. Riv. Gr. [Ety. proper name.] 

 tentaculatus, Hall, 1858, (Graptolithus 



tentaculatus) Rep. of Progr. Can. Sur., 



Quebec Gr. [Sig. having feelers.] 

 Retiolites, Barrande, 1850, Graptolites de 



Boheme. [Ety. rete, a net; lithos, 



stone.] 

 ensiformis, Hall, 1858, (Graptolithus en- 



siformis) Rep. of Progr. Can. Sur., 



Quebec Gr. [Sig. sword-shaped.] 

 venosus, Hall, 1852, (Graptolithus ven- 



osus) Pal. N. Y., vol. 2, Clinton Gr. 



[Sig. reticulated or venose.] 

 Rhombopora, Meek, 1872, Pal. Eastern Ne- 

 braska. [Ety. rhombus, a rhomb 



pora, a pore.] 



lepidodendroidea, Meek, 1872, Pal. East- 

 ern Nebraska, Upper Coal Meas. [Sig. 

 like the Lepidodendron.~] 

 Sarcinula, Lamarck, 1816, Hist, des Anim. 

 sans. Vert. [Ety. sarcinula, a little 

 bundle.] 



glabra, Owen, 1840, Rep. on Mineral 

 lands, Devonian. [Sig. smooth.] 



(?) obsoleta, Hall, 1857, Geo. Lake Sup. 

 Land Dist., vol. 2, Hud. Riv. Gr. [Sig. 

 obsolete.] 



ramosa, Eaton, 1832, Geo. Text Book, (?) 

 Gr. [Sig. full of branches.] 

 Smithia, Edwards & Haime, 1851, Pol. Foss. 

 des Terr. Palseoz. [Ety. proper 

 name.] This name was preoccupied 

 for a genus in Botanv. 



Johanna, Hall, 1873, 23d Reg. Rep., Che- 

 mung Gr. [Ety. proper name.] 



multiradiata, Hall, 1873, 23d Reg. Rep., 

 Chemung Gr. [Sig. many-rayed.] 



woodmani, see Pachyphvllum woodmani. 



verrilli, Meek, 1868, Trans. Chi. Acad. 



Sci., Devonian. [Ety. proper name.] 



Sph^erolites, Hinde, 1875, Proc. Geo. Soc. 



Lond. [Ety. from forming a sphseroid- 



al body.] 



nicholsoni, Hinde, 1875, Proc. Geo. Soc. 

 Lond., Low. Held. Gr. [Ety. proper 

 name.] 

 Staurograptus, Emmons, 1856, (Staurograp- 

 sus) Am. Geol., pt. 2. The termina- 

 tion graptus, is used because grapsus is 

 in use in the nomenclature of Crus- 

 tacea, [Ety. stauros, a cross ; grapho, 

 to write.] 



dichotomus, Emmons, 1856, Am. Geol., 



Quebec Gr. [Sig. divided in two parts.] 

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

 [Ety. Stella, a star; pora, pore.] 



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

 1, Trenton & Hud. Riv. Gr. [Sig. like 

 a coral of the genus Anthelia. ] 

 Stenopora, Lonsdale, 1845, Geol. Russ. & 

 Ural. Mts., vol. 1. [Ety. stenos, narrow; 

 ])oros, a pore.] Most of the species 

 placed in this genus belong to Monti- 

 culipora. 



bulbosa, Billings, 1865, Can. Nat. & Geo., 

 2d series, vol. 2, Mid. Sil. [Sig. bul- 

 bous.] 



adherens, Billings, 1859, Can. Nat. & Geo., 

 vol. 4, Chazy Gr. [Sig. adhering.] 



columnaris, Geinitz, 1866,Carb. und Dyas. 

 in Neb., Coal Meas. [Sig. columnar.] 



crassa, Lonsdale, 1845, Geo. Rus., vol. 1, 

 Coal Meas. [Sig. thick.] 



fibrosa, see Monticulipora fibrosa. 



exilis, Dawson, 1868, Acad. Geol., Low. 

 Carb. [Sig. slender.] 



huronensis, Billings, 1865, Pal. Foss., vol. 

 1, Hudson River Gr. [Ety. proper 

 name.] 



libana, Safford, 1869, Geo. of Tenn. Not 

 defined. 



patula, Billings, 1859, Can. Nat. & Geo., 

 vol. 4, Chazy Gr. [Sig. broad.] 



