BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 607 



Hemicystltes stellatus — Continued. 



Agelacrinua (Hemicystltes) stellatus Ilall, 24th Rep. New York State Cab. Nat. 



Ilist., 1872, p. 215, pi. 6, figs. 5, 6 (adv. sheets, 186G). 

 Maysville (Fairmount) : Cincinnati, Ohio, and vicinity. 



HEMIGYRASPIS Raymond. Genotype: Asaphus aflinis McCoy. 



HemigjTaspis Raymond, Ann. Carnegie Mus., 7, no. 1, 1910, p. 41; Trans, and 

 Proc. Roy. Soc. Canada, 5, 3d ser., sec. 4, 1912, p. 117; Zittel-Eastman Textb. 

 Pal., 1913, p. 719. 



Hemigyraspis collicana Raymond. 



Asaphus marginalis Collie (not Hall), Bull. Geol. Soc. Amer., 14, 1903, p. 413. 

 Hemigyraspis collieana Raymond, Ann. Carnegie ilus., 7, 1910, p. 41, pi. 14, 



figs. 9-13. 

 Canadian (Beekmantown): Bellefonte, Pennsylvania. 



Hemigyraspis liquensis (Hoek). 



Ogygia liquensis Hoek, Neues Jahrb. Min., Geol. Pal., 34, 1912, p. 230, pi. 14. 

 Lowest Ordovician: Near Camargo, Bolivia. 



Hemigyraspis mcconnelli Raymond. 



HemigjTaspis mcconnelli Raymond, Bull. Victoria Memorial Mus., 1, 1913, p. 



40, pi. 4, fig. 4. 

 Hemigyraspis sp. Raymond, Trans. Roy. Soc. Canada, 5, 1912, pi. 3, fig. 7. 

 Lower Ordovician (Ceratopyge beds): Thi-ee miles east of Golden, British 



Columbia. 



Hemigyraspis plana (Matthew). 



Asaphellus(?) planus Matthew, Bull. Nat. Hist. Soc. New Brunswick, no. 20, 



1902, p. 419, pi. 18, fig. 11; Geol. Surv. Canada, Rep. Cambrian Rocka Cape 



Breton, 1903, p. 237, pi. 18, fig. 11. 

 Canadian (Bretonian. Div. C 3c2): McLeod Brook, Boisdale, Cape Breton, 



Nova Scotia. 



HEMIPHRAGMA Uhich. Genotype: Batostoma irrasum Ulrich. 



Batostoma (in part) Ulrich, Geol. Surv. Illinois, 8, 1890, p. 379. 



Hemiplu-agma Ulrich, Geol. Minnesota, 3, 1893, p. 299; Zittel's Textb. Pal. 

 (Engl, ed.), 1896, p. 275.— Simpson, 14th Ann. Rep. State Geol. New York, 

 1894, 1897, p. 592.— Nickles and Bassler, Bull. U. S. Geol. Surv., 173, 1900, 

 p. 35.— Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 281, 282; Zittel-Eastman 

 Textb. Pal., 1913, p. 338. 



Hemiphragma imperfectum (Ulrich). 



Batostoma imperfectum Ulrich, Geol. Surv. Illinois, 8, 1890, p. 460, pi. 25, figs. 



3-3d 

 Hemiphragma imperfectum Ulrich, Geol. Minnesota, 3, 1893, p. 301. 

 Monticulipora imperfectum J. F. James, Jour. Cincinnati Soc. Nat. Hist., 16, 



1894, p. 196. 

 Richmond (Femvale) : Wilmington, Illinois; Tennessee; Texas. 

 Sections of coty pes. —Ca.t. No. 44061, U.S.N.M. 



Hemiphragma irrasum (Ulrich). 



Batostoma irrasa Ulrich, 14th Ann. Rep. Geol. Nat. Hist. Surv. Minnesota, 

 1886. p. 94. 



Hemiphragma irrasum Ulrich, Geol. Minnesota, 3, 1893, p. 299, pi. 24, figs. 5-19; 

 Zittel's Textb. Pal. (Engl, ed.), 1896, fig. 460 (p. 275).— Simpson, 14th Ann. 

 Rep. State Geol. New York for the year 1894, 1897, figs. 190-193 (p. 592).— 

 Bassler, Bull. U. S. Nat. Mus., 77, 1911, pp. 284-286, figs. 172, 173; Zittel- 

 Eastman Textb. Pal., 1913, p. 338, fig. 493. 



