292 PROCEEDINGS OF THE AMERICAN ACADEMY 



FORBESIOCRINUS, De Koninck and Lehon, 1854. 



F. Agassizi, Hall, Iowa, Vol. 1, p. 630. Suhcarhoniferous. 



•F. GiDDiNGSii, Hall, Iowa, Vol. 1, p. 633, PI. 17, fig. 2-4. Sub- 

 carboniferous. Keokuk limestone (?). 



F. Meeki, Hall, Iowa, Vol. 1, p. 631, PI. 17, fig. 3. Suhcarhon- 

 iferous. Keokuk limestone. 



F. Shumardianus, Hall, Iowa, Vol. 1, p. 671, PL 17, fig. 1. Suh- 

 carhoniferous. St. Louis limestone. 



F. Whitfieldi, Hall, Iowa, Vol. 1, p. 632. Suhcarhoniferous. 

 Keokuk limestone. 



F. WoRTHENi, Hall, Iowa, Vol. 1, p^ 632, PI. 17, fig. 5. Suhcar- 



honiferous. Keokuk limestone. 



GLYPTOGRINUS, Hall, 1852. 



G. DECODACTYLUS, Hall, PaliKont. N. York, Vol. 1, p. 281, PI. 77, 



fig. 1 ; PI. 78, fig. 1. Silurian. Hudson River group. 



G. • FiMBRiATUS, Shumard, Geol. Surv. Missouri, Pt. 2, 1855, p. 194, 

 PI. A, fig. 8, a - c. Silurian. Cape Girardeau limestone. 



G. PLUMOSUS, Hall, Palfeont. N. York, Vol. 2, p. 180, PI. A, 41, 

 fig. 3, a — g. Actinocrinus phimosus. Silurian. This spe- 

 cies is made out entirely from the fingers and tentacula. 



G. ? Hall, Palaiont. N. York, Vol. 2, p. 181, PI. A, 41, 



fig. 4. Silurian. Clinton group. 



GLYPTOCYSTITES, Billings, 1854, Canadian Journ., Vol. 2, p. 215. 

 G. MULTiPORUS, Geol. Survey of Canada, Palajont., Dec. III. p. 



54, PI. 3 ; Canad. Journ., Vol. 2, p. 215; Rep. 1856, p. 281. 



Silurian. Lower Silurian. * 

 G. LoGANi, Geol. Surv. Canada, Palfeont., Dec. III. p. 59, PI. 4, 



fig. 1, a-h. Rep. 1856, p. 282. Silurian. Trenton limestone. 

 G. LoGANi var. gracilis, I. c. p. 59, PI. 4, fig. 2. Silurian. 



Trenton limestone. 

 G. FoRBESi, Geol. Survey of Canada, Palasont., Dec. III. p. 59, 



PI. 4, fig. 3. Silurian. Chazy limestone. 



GLYPTORASTER, Hall, 1852. 



G. BRACHiATDS, Hall, Paloiont. N. York, Vol. 2, p. 187, PI. 41, 

 fig. 3, a, b. Silurian. Niagara group. 



GONIASTER, Agassiz, 1834. 



G. sp. indet., Graham, Anthony, and James, Sill. Journ., 2d Series, 

 Vol. 1, p. 441. Silurian. Cincinnati, Ohio. 



