1134 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Saccocrinus sacculus Meek and Worthen. See Periechocrinus whitfieldi. 



Saccocrinus semiradiatus Miller. See Macrostylocrinus semiradiatus. 



Saccocrinus speciosus Roemer. See Periechocrinus dubius. 



Saccopbycus James. Genotype: Saccopbycus intortus James. 



Saccopbycus James, Paleontologist, No. 3, 1879, p. 17; Jour. Cincinnati Soc. Nat. 

 Hist., 7, 1885, p. 157. 



Saccopbycus intortus James. 



Saccophycus intortus James, Paleontologist, No. 3, 1879, p. 17. 

 Maysville?: Near Lebanon, Ohio. 



Observation. — Not recognizable without a restudy of the type. 



SACCOSPONGIA Ulricb. Genotype: S. rudis Ulrich. 



Saccospongia Ulricb, Amer. Geol., 3, 1889, pp. 235, 242.— Miller, N. A. Geol. Pal., 

 1889, p. 164. 



Saccospongia danvillensis Uhich. 



Saccospongia danvillensis Ulricb, Amer. Geol., 3, 1889, p. 243. 



Trenton (Perry ville): Boyle, Mercer, Franklin, and Fayette Counties, Kentucky. 



Cotypes.— Cat. No. 46570, U.S.N.M. 



Saccospongia rudis Ulrich. 



Saccospongia rudis Ulricb, Amer. Geol., 3, 1889, p. 242, fig. 7. 

 Trenton (Cynthiana): Near Lexington and Frankfort, Kentucky. 

 Cotypes.— Cat. No. 46571, U.S.N.M. 



Sactoceras Hyatt. See Loxoceras McCoy. 



Sactoceras Canadense Whiteaves. See Actinoceras (Paractinoceras) canadense. 



SjERICHNITES Billings. Genotype: S. abruptus Billings. 



Saerichnites Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 73. — 

 Miller, N. A. Geol. Pal., 1889, p. 453. 



Saerichnites abruptus Billings. 



Saerichnites abruptus Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 



1866, p. 73. 

 Richmond (English Head): Near English Head, etc., Anticosti. 



SAFFORDIA Ulrich. Genotype: S. ventralis Ulrich. 



Saffordia Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 625. — Grabau and Shimer, 

 N. A. Index Fossils, 1, 1909, p. 384. 



Saffordia modesta (Ulrich). 



Cypricardites? modestus Ulrich, Amer. Geol., 10, 1892, p. 100, pi. 7, figs. 5-7. 

 Saffordia modesta Ulricb, Geol. Minnesota, 3, pt. 2, 1894, p. 627, pi. 41, figs. 

 29-31.— Schuchert, Proc. U. S. Nat. Mus., 22, 1900, p. 163.— Grabau and 

 Shimer, N. A. Index Fossils, 1, 1909, p. 385, fig. 489c. 

 Trenton: Oshkosh, Wisconsin; Goodhue and Fillmore Counties, Minnesota 



(Prosser) ; Baffin Land. 

 Holotype.—G&t. No. 46307, U.S.N.M. 



Saffordia sulcodorsata (Ulrich). 



Cuneamya sulcodorsata Ulrich, 19th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 



1892, p. 248, fig. 32. 

 Saffordia sulcodorsata Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 626, pi. 41, figs. 



32, 33. 



