54 



POLYPI. 



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



Held. Gr. [Sig. smallest.] 

 niagarensis, Hall, 1852, Pal. X. Y., vol. 2, 



Niagara Gr. [Ety. proper name.] 

 niagarensis, var. spinigerus, Hall, 1870, 



28th Reg. Rep., Niagara Gr. [Sig. 



spiny.] 

 nitellus, Winchell, 1866, Rep. Low. Pen. 



Mich., Ham. Gr. [Sig. delicate, 



smooth.] 

 obliquus, Rominger, 1876, Foss. Corals, 



Niagara Gr. [Sig. oblique.] 

 parasiticus, Hall, 1852, (Astrocerium par- 



asiticum) Pal. N. Y., vol. 2, Niagara 



Gr. [Sig. parasitic] This name was 



preoccupied by Phillips in his Geol. 



of Yorkshire, 

 placenta, Rominger, 1876, Foss. Corals, 



Ham. Gr. [Sig. a cake.] 

 pleurodictyloides, Nicholson, 1875, Ohio 



Pal., vol. 2, Corniferous Gr. [Sig. 



resembling Pleurodictyum.~\ 

 polymorphs, Goldfuss, 1826, Germ. 



Petrel, Corniferous Gr. [Sig. having 



many-forms.] 

 prolificus, Billings, 1865, Can. Nat, & 



Geol., 2d series, vol. 2, Mid. Sil. [Sig. 



abundant.] 

 pyriformis, Hall, 1852, (Astrocerium pyri- 



forme) Pal. N. Y., vol. 2, Niagara Gr. 



[Sig. pear-shaped.] 

 radiatus, Rominger, 1876, Foss. Corals, 



Ham. Gr. [Sig. radiated.] 

 radiciformis, Rominger, 1876, Foss. Corals, 



Devonian. [Sig. root-like.] 

 reticulatus, DeBlainville, 1830, (Alveolites 



reticulata) Diet., vol. 60, Niagara Gr. 



[Sig. reticulated.] 

 spongilla, Rominger, 1876, Foss. Corals, 



Niagara Gr. [Sig. a little sponge.] 

 striatus, Say, 1818, Am. Jour. Sci., vol. 1, 



Niagara Gr. [Sig. striated.] 

 tuberosus, Rominger, 1876, Foss. Corals, 



Corniferous Gr. [Sig. composed of 



tubes.] 

 turbinates, Billings, 1859, Can. Jour., vol. 



4, Corniferous Gr. [Sig. top-shaped.] 

 venustus, Hall, 1852, (Astrocerium venus- 



tum) Pal. N. Y., vol. 2, Niagara Gr. 



[Sig. elegant,] 

 whitfieldi, White, 1874, Rep. Invert. Foss., 



Low. Carb. [Ety. proper name.] 

 winchelli, Rominger, 1862, (Calamopora 



winchelli) Am. Jour. Sci., vol. 34, 2d 



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

 Filicifes gracilis, Shumard, see Plumalina 



gracilis. 

 Fistuupora, McCoy, 1849, Ann. & Mag. 



Nat. Hist,, 2d ser., vol. 3. [Ety. fistula, 



a pipe ; pora, a pore.] 

 acervulosa, Rominger, 1866, Proc. Acad. 



Nat. Sci., Ham. Gr. [Sig. many clus- 

 tered together.] 

 canadensis, Billings, 1859, Can. Nat. & 



Geo., vol. 4, Devonian. [Ety. proper 



name.] 



compressa, Rominger, 1866, Proc. Acad. 

 Nat. Sci., Keokuk Gr. [Sig. com- 

 pressed.] 



crnssa, Rominger, 1866, Proc. Acad. Nat. 

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



elegans, Rominger, 1866, Proc. Acad. Nat. 

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



eriensis, Rominger, 18(56, Proc. Acad. Nat. 

 Sci., Ham. Gr. [Ety. proper name.] 



flabellum, Rominger, 1866, Proc. Acad. 

 Nat. Sci., Warsaw Gr. [Sig. fan-like.] 



halli, Rominger, 1866, Proc. Acad. Nat. 

 Sci., Niagara Gr. [Ety. proper name.] 



helios, Rominger, 1866, Proc. Acad. Nat. 

 Sci., Corniferous Gr. [Sig. the sun.] 



labiosa, Winchell, 1866, Rep. Low. Pen. 

 Mich., Ham. Gr. [Sig. full-lipped.] 



lunata, Rominger, 1860, Proc. Acad. Nat. 

 Sci., Up. Held. Gr. [Sig. crescent- 

 shaped.] 



minuta, Rominger, 1866, Proc. Acad. Nat. 

 Sci., Ham. Gr. [Sig. very small.] 



neglecta, Rominger, 1866, Proc. Acad. Nat. 

 Sci., Niagara Gr. [Sig. overlooked.] 



nodulifera, Meek, 1872, Pal. E. Neb., Coal 

 Meas. [Sig. bearing knots.] 



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

 mung Gr. [Sig. western.] 



peculiaris, Rominger, 1866, Proc. Acad. 

 Nat. Sci., Keokuk Gr. [Sig. peculiar.] 



safi'ordi, Winchell, 1866, Rep. Low. Pen. 

 Mich., Ham. Gr. [Ety. proper name.] 



spergenensis, Rominger, 1860, Proc. Acad. 

 Nat. Sci., Warsaw Gr. [Ety. proper 

 name.] 



spinulifera, Rominger, 1800, Proc. Acad. 

 Nat. Sci., Ham. Gr. [Sig. spine- 

 bearing.] 



stellifera, Rominger, 1800, Proc. Acad. 

 Nat, Sci., Ham. Gr. [Sig. star-bearing.] 



sulcata, Rominger, 1800, Proc. Acad. Nat. 

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



trifolia, Rominger, 1800, Proc. Acad. Nat. 

 Sci., Keokuk Gr. [Sig. three-leaved.] 



utriculus, Rominger, 1800, Proc. Acad. Nat. 

 Sci., Ham. Gr. [Sig. a little bag.] 

 Gbssograptus, Emmons, (Glossograpsus) 1850, 

 Am. Geol., pt. 2. Prof. Hall uses the 

 termination graptus, instead of grapms, 

 because the latter termination is used 

 in the nomenclature of Crustacea. This 

 genus is a synonym for Diplograptus. 



cilialus, Emmons, 1850, Am. Geol. This 

 name will be found preoccupied by 

 Emmons, under the genus Diplograptus. 



setaceus, Emmons, 1850, Am. Geol. See 

 Diplograptus setaceus. 

 Graptolithus, Linnaeus, 1730, Syst. Naturse. 

 [Ety. graplio, to write; lilhos, stone.] 



abnormis, Hall, 1858, Rep. of Progr. Can. 

 Sur., Quebec Gr. [Sig. abnormal.] 



alatus,Hall, 1858, Rep. of Progr. Can. Sur., 

 Quebec Gr. [Sig. winged.] 



amplexkaule, see Diplograptus amplexi- 

 caulis. 



angustifolius, see Diplograptus angusti- 

 folius. 



