1334 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Zaphrentis affinis — Continued. 



Zaphrentis bellistriata Billings, Canadian Nat. Geol., n. s., 2, 1865, p. 430; Cat. 



Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, pp. 8, 34. 

 Richmond (Charleton) and Gamachian (Ellis Bay): Wreck Point, Gamache Bay, 

 etc., Anticosti. 



Zaphrentis ambigua Savage. 



Zaphrentis ambigua Savage, Bull. Geol. Surv., Illinois, 23, 1913, p. 109, pi. 7, 



fig. 2. 

 Upper Medinan: Will County, Illinois (Channahon); near Edgewood, Louisiana, 



and Clarksville, Missouri (Edgewood). 



Zaphrentis bellistriata Billings. See Zaphrentis affinis. 



Zaphrentis Bigsbyi Billings. See Omphyma verrucosa. 



Zaphrentis bilateralis (Hall). 



Caninia bilateralis Hall, Pal. New York, 2, 1852, p. 41, pi. 17, figs. 3a-h; p. 113, 



pi. 32, figs. 3a-c. 

 Zaphrentis bilateralis Hall, 12th Pep. New York State Cab. Nat. Hist., 1859, 



p. 79 (gen. ref.). 

 Clinton: Reynale's Basin, Lockport, etc., New York. 

 Early Silurian: Reynale's Basin, Lockport, etc., New York (Clinton); Lake 



Huron (Cataract). 



Zaphrentis Canadensis Billings. See Streptelasma rusticum. 



Zaphrentis celator Hall. 



Zaphrentis celator Hall, 28th Rep. New York State Mus. Nat. Hist., doc. ed. for 

 1875, 1877, pi. 5, figs. 5, 6; mus. ed., 1879, p. 107, pi. 5, figs. 5, 6; 11th Ann. 

 Rep. Indiana Dep. Geol. Nat. Hist., 1882, p. 227, pi. 4, figs. 5, 6.— Lesley, 

 Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1267, figs. 



Niagaran (Waldron): Waldron, Indiana. 



Zaphrentis celator daytonensis (Foerste). 



Cyathophyllum celator Daytonensis Foerste, Proc. Boston Soc. Nat. Hist., 24, 



1890, p. 339, pi. 9, figs. 9-11; Geol. Surv. Ohio., Pal., 7, 1893, p. 601, pi. 34, 



figs. 9-11. 

 Alexandrian (Brassfield): Soldiers' Home, near Dayton, Ohio. 



Zaphrentis charaxata Foerste. 



Zaphfentis charaxata Foerste, Bull. Kentucky Geol. Surv., 7, 1906, p. 310, pi. 7, 



figs. 4a-e. 

 Clinton (Waco): Near Irvine and Panola, Kentucky. 



Zaphrentis cinctosa Billings. See Amplexus shumardi. 



Zaphrentis conulus Davis. See Streptelasma conulus. 



Zaphrentis corniculitm Davis. See Streptelasma rusticum. 



Zaphrentis cristulata Hall. 



Zaphrentis cristulata Hall, 35th Rep. New York State Mus. Nat. Hist., 1884, p. 



414 (ext., 1882, p. 10). 

 Niagaran (Racine): Racine, Wisconsin. 



Zaphrentis denticulata (Goldfuss). 



Anthophyllum denticulatus Goldfuss, Petrefacta, 1826, p. 46, pi. 13, fig. 11. 

 Zaphrentis denticulata Edwards and Haime, Moh. Polyp. Foss. Terr. Pal. (Arch. 



du Mus. Hist. Nat., 5), 1851, p. 412. 

 Silurian: Vicinity of Niagara River. 

 Observation. — Not recognizable. Figure represents cast of some cup coral. 



