POLYPI. 



51 



americanum var. arcticum, Meek, 1868, 

 Trans. Chi. Acad. Sci., Ham. Or. 

 [Ety. from the arctic or northern re- 

 gion.] 



cylindricum, (not Lonsdale) see Cystiphyl- 

 him americanum. 



fruticosum, Nicholson, 1875, Geo. Mag., 

 vol. 2, N. S., Corniferous Gr. [Sig. 

 full of stems.] 



grande, Billings, 1859, Can. Jour., Cor- 

 niferous Gr. [Sig. large.] 



huronense, Billings, 1866, Catal. Sil. Foss. 

 Antic, Clinton & Niagara Gr. [Ety. 

 proper name.] 



maritima, Billings, 1862, Pal. Foss., vol. 



1, Mid. Sil. [Sig. of the sea.] 

 mundulum. Hall, 1873, 23d Reg. Eep., 



Chemung Gr. [Sig. fine, neat.] 

 ohioense, Nicholson, 1875, Ohio Pal., vol. 



2, Corniferous Gr. [Ety. proper name.] 

 senecaense, Billings, 1859, Can. Jour., 



Devonian. [Ety. proper name.] 



squamosum, Nicholson, 1875, Geo. Mag. 

 N. S., vol. 2, Corniferous Gr. [Sig. 

 rough or scaley.] 



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

 vol.4, Corniferous Gr. [Sig. furrowed.] 



superbum, Nicholson, 1875, Geo. Mag., 

 vol. 2, N. S., Ham. Gr. [Sig. stately, 

 nice.] 



vesiculosum, Goldfuss, 1826, Petref. Germ. 

 Devonian. [Sig. full of vesicles.] 

 Dawsonia, Nicholson, 1873, Ann. Mag. Nat. 

 Hist. 4th ser., vol, 12. [Ety. proper 

 name.] Supposed to be the ovarian 

 vesicles of Graptolites. 



acuminata, Nicholson, 1873, Ann. Mag. 

 Nat. Hist., 4th ser., vol. 12, Quebec 

 Gr. [Sig. pointed.] 



campanulata, Nicholson, 1873, Ann. Mag. 

 Nat. Hist., Quebec Gr. « [Sig. bell- 

 shaped.] 



rotunda, Nicholson, 1873, Ann. Mag. Nat. 

 Hist., Quebec Gr. [Sig. round.] 



tenuistriata, Nicholson, 1873, Ann. Mag. 

 Nat. Hist., Quebec Gr. [Sig. finely 

 striated.] 

 Dendrograptus, Hall, 1865, Can. Org. Rem., 

 Decade 2. [Ety. dendron, a tree ; grapho, 

 to write.] 



diff'usus, Hall, 1865, Can. Org. Rem., 

 Decade 2, Quebec Gr. [Sig. diffused, 

 hanging loose.] 



divergens. Hall, 1865, Can. Org. Rem., 

 Decade 2, Quebec Gr. [Ety. dfvergo, 

 to extend from a point in different 

 directions.] 



erectus, Hall, 1865, Can. Org. Rem., De- 

 cade 2, Quebec Gr. [Sig. standing up- 

 right.] 



flexuosus. Hall, 1865, Can. Org. Rem., 

 Decade 2, Quebec Gr. [Sig. crooked.] 



fruticosus. Hall, 1865, Can. Org. Rem., 

 Decade 2, Quebec Gr. [Sig. full of 

 shoots or stems.] 



gracilis. Hall, 1865, Can. Org. Rem., De- 

 cade 2. Quebec Gr. [Sig. slender.] 



hallianus, Prout, 1851, fGraptolithus hal- 

 lianus) Am. Jour. Sci. 2d ser., vol. 11, 

 Potsdam sandstone. [Ety. proper 

 name.] 



striatus, Hall, 1865, Can. Org. Rem., De- 

 cade 2, Quebec Gr. [Sig. striated.] 

 Dendropora, Michelin, 1846, Icon. Zooph. 

 [Ety. dendron, a tree; pora, a pore. J 



alternaus, Rominger, 1876, Foss. Corals 

 Ham. Gr. [Sig, alternately.] 



neglecta, Rominger, 1876, Foss. Corals, 

 Up. Held. Gr. [Sig. overlooked.] 



ornata, Rominger, 1876, Foss.Corals, Ham. 

 Gr. [Sig. ornamented.] 



proboscidialis, Rominger, 1876, Foss. 

 Corals, Ham. Gr. [Sig. having a pro- 

 boscis.] 



reticulata, Rominger, 1876, Foss. Corals, 

 Ham. Gr. [Sig. reticulated,] 

 Dichograptus, syn. for Graptolithus. 

 DiCRANOGRAPTUs, Hall, 1865, Can. Org. Rem. 

 Decade 2. [Ety. dikranos, two pointed; 

 grapho, to write.] 



divaricatus. Hall, 1859, (Graptolithus di- 

 varicatus) Pal. N. Y., vol. 3, Hud. 

 Riv. Gr. [Sig. wide apart.] 



furcatus. Hall, 1847, (Graptolithus fur- 

 catus) Pal. N. Y., vol. 1, Hud. Riv. 

 Gr. [Sig. forked.] 



ramosus, Hall, 1847, (Graptolithus ra- 

 mosus) Pal. N. Y., vol. 1, Hud. Riv. 

 Gr. [Sig. branching.] 



sextans. Hall, 1847, (Graptolithus sex- 

 tans) Pal. N. Y., vol. 1, Hud. Riv. Gr. 

 [Ety. sextans, a sixth part ; probably 

 named from the regular diverging 

 bifurcations at an angle of sixty de- 

 grees.] 

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

 [Ety. dictyon, a net; nema, a thread.] 



cadens. Hall, 1865, Can. Org. Rem., De- 

 cade 2, Ham. Gr. [Sig. drooping.] 



fenestrate. Hall, 1868, 20th Reg. Rep., 

 Up. Held. Gr. [Sig. having op'enings.] 



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

 Niagara Gr. [Sig. slender.] 



grandis, Nicholson, 1873, Ann. Mag. Nat. 

 Hist, 4th ser., vol. 12, Quebec- Gr. 

 [Sig. grand.] 



hamiltonise, Hall, 1865, Can. Org. Rem., 

 Decade 2, Ham. Gr. [Ety. proper 

 name.] 



irregularis. Hall, 1865, Can. Org. Rem., 

 Decade 2, Quebec Gr. [Sig. irregular.] 



murrayi. Hall, 1865, Can. Org. Rem., De- 

 cade 2. Quebec Gr. [Ety. proper 

 name.] 



neenah, Hall, 1861, Geo. Rep. Wis. Tren- 

 ton Gr. [Ety. proper name.] 



quadrangularis. Hall, 1865, Can. Org. 

 Rem., Decade 2, Quebec Gr. [Sig. 

 four sided.) 



retiformis. Hall, 1843, (Gorgonia reti- 

 formis) Geo. Rep. 4th Dist. N. Y., 

 Niagara Gr. [Sig. net-formed.] 



robusta. Hall, 1865, Can. Org. Rem., De- 

 cade 2, Quebec Gr. [Sig. hardy, 

 strong.] 



