POLYPI. 



verrucosa, Troost, 1840, 5th Geo. Rep. 

 Term., Devonian. [Sig. warty.] 

 Stkombodes, Schweigger, 1820, Handb. der 

 Naturg. [Ety. strombos, twisting; in 

 allusion to the lamellae spirally twist- 

 ing about the center.] 



alpenensis, Rominger, 1876, Foss. Corals, 

 Ham. Gr. [Ety- proper name.] Is 

 this a syn. for Phillipsastrea mammil- 

 laris?] 



diffluens, Edwards & Haime, 1851, Pol. 

 Foss. des Terr. Palfeoz., Anticosti Gr. 

 [Sig. flowing in different directions.] 



distortus, Hall, 1843. Geo. Rep. 4th Dist. 

 N. Y., Ham. Gr. [Sig. distorted, ir- 

 regular in shape.] 



eximius, Billings, 1866, Catal. Sil. Foss., 

 Antic, Clinton & Niagara Gr. [Sig. 

 uncommon, excellent.] 



gracilis, Billings, 1862, Pal. Foss., vol. 1, 

 Mid. Sil. [Sig. slender.] 



Mianthoides, (?) Heliophyllum halli. 



mammillatus, Owen, as defined by Rom- 

 inger, 1876, Foss. Corals, Niagara Gr. 

 [Sig. mammillated.] 



pentagonus, Goldfuss, 1826, Germ. Petref. 

 Niagara Gr. [Sig. pentagonal.] 



pygmseus, Rominger, 1876, Foss. Corals, 

 Niagara Gr. [Sig. dwarfed.] 



(?) rectus, see Streptelasma rectum. 



simplex, see Zaphrentis simplex. 



striatus, D'Orbigny, Niagara Gr. [Sig. 

 striated.] 



vermicularis, Lonsdale, 1849, Trans. Geo. 

 Soc, vol. 5, Devonian. [Sig. vermi- 

 cular.] 

 Syringopora, Goldfuss, 1826, Germ. Petref. 

 [Ety. syrinx, a pipe; para, a pore.] 



alectiformis, Winchell, 1866, Rep ; Low. 

 Penin. Mich., Ham, Gr. [Ety. like a 

 coral of the genus Alecto. ] 



annulata, Rominger, 1876, Foss. Corals, 

 Niagara Gr. [Sig. ringed.] 



cleviana, Edwards & Haime, 1851, Polyp. 

 Foss., Corniferous Gr. [Ety. proper 

 name.] 



compacta, Billings, 1858, Can. Nat. & Geo., 

 vol. 3, Upp. Sil. [Sig. compact.] 



crassata, Winchell, 1866. Rep. Low. Penin. 

 Mich., Ham. Gr. [Sig. thick; in allu- 

 sion to the thickness of the tube walls.] 



dalmani, Billings, 1858, Can. Nat. & Geo., 

 vol. 3, Upp. Sil. [Ety proper name.] 



debilis, Billings, 1858, Can. Nat. & Geo., 

 vol. 3, Upp. Sil. [Sig. weak, feeble.] 



elegans, Billings, 1858, Can. Nat. & Geo., 

 vol. 3, Corniferous Gr. [Sig. elegant.] 



fenestrata, Winchell, 1866, Rep. Low. 

 Penin. Mich., Ham. Gr. [Sig. reticu- 

 lated.] 



fibrata, Rominger, 1876, Foss. Corals, 

 Niagara Gr. [Sig. fibrous.] 



harveyi, White, 1862, Proc. Bost. Soc. 

 Nat. Hist. vol. 9, Chemung Gr. [Ety. 

 proper name.] 



hisingeri, Billings, 1858, Can. Nat. &Geo., 

 vol. 4, Corniferous Gr. [Ety. proper 

 name.] 



intermedia, Nicholson, 1874, Rep. Pal. 

 Prov. Ont., Can., Devonian. [Sig. in- 

 termediate.] 



laxata, Billings, 1859, Can. Jour., vol. 4, 

 Corniferous Gr. [Sig. loose.] 



macluri, Billings, I860, Can. Jour., vol. 5, 

 Corniferous Gr. [Ety. proper name.] 



multattenuata, McChesney, 1860, New 

 Pal. Foss., Coal Meas. [Ety. multum, 

 much ; attenuatus, slender.] 



multicaulis, Hall, 1852, Pal. N. Y., vol. 2, 

 Niagara Gr. [Sig. having many stems.] 



nobilis, Billings, 1858, Can. Nat. & Geo., 

 vol. 4, Corniferous Gr. [Sig. remark- 

 able.] 



perelegans, Billings, 1859, Can. Jour., vol. 

 4, Corniferous Gr. [Sig. very elegant.] 



retiformis, Billings, 1858, Can. Nat. & 

 Geo., vol. 3, Upp. Sil. [Sig. net- 

 formed.] 



reticulata, Goldfuss, 1826, Petref. Germ., 

 Devonian. [Sig. reticulated.] 



tabulata, Edwards & Haime, 1851, Pol. 

 Foss. Terr. Palseoz., Up. Held. Gr. 

 [Sig. tabulated.] 



tenella, Rominger, 1876, Foss. Corals, 

 Niagara Gr. [Sig. delicate.] 



tubiporoides, Yandell & Shumard, 1847, 

 Contributions to Geo. of Ky., Cornif- 

 erous Gr. [Ety. resembling corals of 

 the genus Tubipora.] 



tubiporoides, Billings. The name was pre- 

 occupied in 1847. 



verneuili, Edwards & Haime, 1851, Polyp. 

 Foss., Corniferous Gr. [Ety. proper 

 name.] 



verticillata, Goldfuss, 1826, Petref. Germ., 



Up. Sil. [Sig. verticillate, whorled.] 



Syringostroma, Nicholson, 1875, Ohio Pal., 



vol. 2. [Ety. syrinx, a pipe ; stroma, a 



layer.] 



columnare, Nicholson, 1875, Ohio Pal., 

 vol. 2, Corniferous Gr. [Sig. colum- 

 nar.] 



densum, Nicholson, 1875, Ohio Pal., vol. 2, 

 Corniferous Gr. [Ety. from the ap- 

 parently dense calcareous structure.] 

 Tetradium, Dana, 1846, Zooph, vol. 8. [Ety. 

 tetras, four.] 



columnare, Hall, 1847, (Chetetes colum- 

 naris) Pal. N. Y., vol. 1, Trenton Gr. 

 [Sig. columnar.] 



fibratum, Safford, 1856, Am. Jour. Sci., 

 vol. 22, Cin'ti Gr. [Sig. threaded.] 



fibratum var. apertum, Safford, 1856, Am. 

 Jour. Sci., vol. 22, Cin'ti Gr. [Sig. 

 open.] 



fibratum var. minus, Safford, 1856, Am. 

 Jour. Sci. & Arts, vol. 22, Cin'ti Gr. 

 [Sig. less.] 

 Tetragraptus, Salter, 1863, Quar. Jour. Geo. 

 Soc, vol. 19. [Ety. tetras, four; grapho, 

 to write]. Prof. Hall does not regard 

 this sub-genus of Graptolithus, con- 

 sidering the present knowledge of the 

 subject, with much favor. G. bryon- 

 oides is made the typical species. G. 

 quadribrachiatus, also placed in it. 



