192 



CCELENTERATA. 



[hbl. 



larger ones cylindrical, with twelve in- 

 foldings of the wall or septa, not reach- 

 ing the center, the smaller ones 

 polygonal, investing the larger ones; 

 walls amalgamated ; tabulae numer- 

 ous; no columella. Type H. inter- 

 stinctus. 

 affinis, Billings, 1865, Can. Nat. and Geo., 

 2d ser., vol. 2, p. 427, Hud. Riv. and 

 Mid. Sil. 

 elegans. Hall, 1852, Pal. N. Y., vol. 2, p. 



130, Niagara (ir. 

 exiguus, Billings, 1865, Can. Nat. and 

 Geo., 2d ser., vol. 2, p. 428, Mid. Sil. 

 in terstinctus, 

 Linniuue, 

 1767, (Madre- 

 pora inter- 

 stincta,) Syst. 

 Nat..l2th Ed., 

 p. 1276, Ni- 

 agara ( J r. 

 m acrostylus, 

 Hall, 1852, 

 Pal. N. Y., 

 vol. 2, p. 135, 

 Niagara (ir. 

 megastoma, McCoy, 1846, Sil. Foss. of 



Ireland, p..62, Niagara (ir." 

 pyriformis, Guettard, 1770, Mem. 3, p. 454, 

 and Pal. N. Y., vol. 2, p. 133, Ni- 

 agara 1 1 1 . 

 sparsus, Billings, 1865, Can. Nat. and Geo., 



2d ser., vol. 2, p. 428, Mid. Sil. 

 speciosus, Billings, 1865, Can. Nat. and 



Geo., 2d ser., vol. 2, p. 426, Mid. Sil. 

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



p. 131, Niagara ( Jr. 

 subtubulatus, McCoy, as identified b 



Fig. 181.— Heliolites Inter 

 stlnctu- 



Rominger, 1876, Joss. Corals, p. 



a: 



Niagara (Jr. 



tenuis, Billings, 1865, Can. Nat. and (ieo., 

 2d ser., vol. 2, p. 428, Mid. Sil. 

 Heuophyi.lum, Hall, 1848, in Dana. Zooph., 

 p. 356. [Ety. helios, sun ; pliyllon, leaf.l 

 Corallum simple; septa well developed 

 and producing lateral lamellar pro- 

 longations, which extend from the wall 

 toward the center of the visceral cham- 

 ber, so as to represent ascending arches 

 and to constitute irregular central tabulae, 

 and which are united toward the cir- 

 cumference by means of vertical dis- 

 sepiments. Type H. halli. 



acuminatum, Hall, 1882, Foss. Corals 

 Niagara and Up. Held. Grs., p. 46, and 

 12th Rep. Ind. Geo., p. 310. Up. 

 Held. Gr. 



sequale, Hall, 1882, Foss. Corals Niagara 

 and Up. Held. Grs., p. 47, and 35th 

 Rep. N. Y. St. Mus. Nat. Hist., p. 451, 

 Up. Held. Gr. 



8equum,-Hall, 1882, Foss. Corals Niagara 

 and Up. Held. Grs., p. 51, and 12th 

 Rep. Ind. Geo., p. 314, Up. Held. <ir. 



alternatum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Grs., p. 45, and 

 12th Rep. Ind. Geo., p. 305, Up. 

 Held. Gr. 



annulatum. Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. (irs., p. 48, and 

 12th Rep. Ind. Geo., p. :'.(»:. Up, 

 Held. Gr. 



arachne, Hall, 1876, Illust. Dev. Foss., pi. 



24, Ham. (ir. 



campaniforme, Hall, 1882, Foss. Corals 

 Niagara and Up. Held. Grs., p. 53, and 

 35th Rep. N. Y. St. Mus. Nat. Hist., p. 

 457, Up. Held. Gr. 



canadense, Billings, 1859, Can. Jour., vol., 

 4, p. 125, Up. Held. Gr. 



cancellatum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Gra.. \<. 68, and 

 35th Rep. N.Y.St. Mus. Nat. Hist.. |>. 

 457, Up. Held. (ir. 



cayugaense, Billings, 1859, Can. Jour., vol. 

 4, p. 124, Up. Held. (ir. 



colbornense, Nicholson, 1875, Can. Nat. 

 and Geo., vol. 7, p. 143, Up. Held, 

 (ir. 



colligatum, Billings, 1859, Can. Jour., vol. 



4, p. 126, Up. Held. Gr. 

 compactum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. 11. Id. Grs., i>. 48, and 1-th 

 Rep. Ind. Geo., p. 308, Up. Held. ( Jr. 



confluens, Hall, 1876, Illust. Dev. Foss., 



pi. 26 and 27, Hani. Gr. 

 degener, Hall, 1876, Illust. Dev. Foss., pi. 



25, Ham. Gr. 



dentatuni, Hall, 1882, Foss. Corals Niagara 

 and Up. Held. Gra., p. 48, and 36th Sep. 

 N.Y.St. Mus. Nat. Hist., p. 462, Up. 

 Held. Gr. 



denticulatum. Hall, 1882, Foss. Corals Ni- 

 agara and I'p. Held. Grs., p. 52, and 

 12th Rep. Ind. Geo., p. 313, Up. 

 Held. Gr. 



deutilineatum, Hall, 1882, Foss. Corals 

 Niagara and Up. Held. Gra., p. 13, and 

 35th Hep. N. Y. St. Mus. Nat. Hist., p. 

 417, Niagara Gr. 



distans, Hall, 1S82, Foss. Corals Niagara 

 and Up. Held. Gra., p. 60, and 12th 

 Rep. Ind. Geo., p. 308, Up. Held. Gr. 



eriense, Billings, 185!), Can. Jour., vol. 4, 

 p. 124, Corniferous Gr. 



exiguum, Billings, 1860, Can. Jour., vol. 



5, p. 261, Corniferous Gr. 

 fasciculatum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Grs., p. 48, and 

 35th Rep. N. Y. St. Mus. Nat. Hist., p. 

 452, Up. Held. Gr. 



fecundum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Grs., p. 49, and 

 IL'tli Rep. Geo. Ind., p. 309, Up. 

 Held Gr. 



fissuratum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Grs., p. 53, and 

 35th Rep. N. Y. St. Mus. Nat. Hist., p. 

 457, Up. Held. Gr. 



gemmatum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Grs., p. 49, and 

 12th Rep. Geo. Ind., p. 310, Up. 

 Held Gr. 



gemmiferum, Hall, 1882, Foss. Corals Ni- 

 agara and Up. Held. Grs., p. 13, and 35th 

 Rep. N. Y. St. Mus. Nat. Hist., p. 417, 

 Niagara Gr. 



