BIBLIOGRAPHIC LIST OF GENEEA AND SPECIES. 153 



Bythopora .subgracilis (Uhich). 



Homotrypella? subgracilis Ulricli, Geol. Minnesota, 3, 1893, p. 230, pL 26, figs. 



10-16. 

 Bythopora Bubgracilia Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 241, 242, figs. 



135, 136. 

 Black River (Decorah): Minneapolis, Minnesota, and vicinity. 

 Ordovician (Wassalem): Uxnorm, Estlionia, Russia. 

 Cotypes and phsiotypes.—C&i. Nos. 43558, 57314, U.S.N.M. 



Bythotrephis Roemer. See Buthotrephis Hall. 



Bythotrypa Ulrich. See Favositella Etheridge and Foord. 



CACTOGRAPTUS Ruedemann. Genotype: C. crassus Ruedemann. 



Cactograptus Ruedemann, Mem. Nev?- York State Mus., 11, pt. 2, 1908, p. 196. 



Cactograptus crassus Ruedemann. 



Cactograptus crassus Ruedemann, Mem. New York State Mus., 11, pt. 2, 1908, 



p. 197, pi. 8, fig. 1, figs. 99-101. 

 Upper Clinton: Clinton, Oneida County, New York. 



Calamena Eaton. See Calymene Brongniart. 



Calamopora Goldfuss. See Favosites Lamarck. 



Calamopora cellulata Castelnau. Not recognized. 



Calamopora cellulata Castelnau, Syst. Sil. I'Amer. Nord., 1843, p. 46. 

 Silurian: Point La tour, Lake Huron. 



Calamopora favosa Goldfuss. See Favosites favosus. 



Calamopora fibrosa Eichwald. See Dianulites petropolitana. 



Calamopora fibrosa Roemer. See Hindia ephaeroidalis. 



Calamopora forbesi var. discoidea Roemer. See Favosites discoidea. 



Calamopora goldfussi Castelnau. See Favosites goldfussi. 



Calamopora gothlandica Goldfuss. See Favosites gothlandica. 



Calamopora maximus Troost. See Favosites maxima. 



Calamopora minuta Castelnau. Not recognized. 



Calamopora minuta Castelnau, Terr. Sil. de I'Amer. du Nord, 1846, p. 46. 

 Silurian: Drummond Island, Lake Huron, etc. 



Calamopora minutissima Castelnau. Not recognized. 



Calamopora minutissima Castelnau, Terr. -Sil. de I'Amer. du Nord, 1843, p. 46, 



pi. 18, fig. 

 Silurian: Drummond Island, Lake Huron. 



Calamopora radians Castelnau. 



Calamopora radians Castelnau, Terr. -Sil. de I'Amer. Nord, 1843, p. 46, pi. 18, fig. 1. 

 Silurian: Buffalo, New York. 



Observation. — Not recognized. Figure represents basal side of some Favosites, 

 probably a Devonian species. 



Calamopora venusta Rominger. See Favosites hisingeri. 



Calamopora verneuili Castelnau. 



Calamopora Verneuili Castelnau, Sil. Syst., 1843, p. 47. 

 Ordovician: Near Quebec, Canada. 



Observation. — Not recognized. Refers to some ramose trepostomatous l>ryo- 

 zoan with monticules. 



