132 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Brachyaspis alacer (Billings). 



Asaphus alacer Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 



26, fig. 9a. 

 Brachyaspis alacer Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, 



sec. 4, 1912, p. 119, pi. 2, fig. 3. 

 Richmond (Charleton) and Gamachian: Charleton Point, etc., Anticosti. 



Brachyaspis altilis Raymond. 



Asaphus platycephalus Billings (not Stokes), Cat. Sil. Foss. Anticosti, 1866, pp. 



24, 26, fig. 9b. 

 Brachyaspis altilis Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, 



sec. 4, 1912, p. 119,'pl. 2, figs. 4, 5; Bull. Victoria Mem. Mus., 1, 1913, p. 47, 



pi. 4, figs. 3, 7. 

 Richmond (Charleton): English Head, Anticosti. 



Brachyaspis notans (Billings). 



Asaphus notans Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, p. 



24, fig. 8; p. 60. 

 Brachyaspis notans Raymond, Trans, and Proc. Roy. Soc. Canada, 3d ser., 5, 



sec. 4, 1912, p. 118, pi. 1, fig. 1. 



Richmond (English Head): English Head, Anticosti. 

 Gamachian (Ellis Bay): Gamache Bay, Anticosti. 



BRACHYMERUS Shaler. See Anastrophia Hall. 



BRACHYMERUS REVERSUS Shaler. See Parastrophia reversa. 



BRACHYPRION Shaler. See Stropheodonta subgenus Brachyprion. 



BRACHYPRION VENTRICOSA Shaler. See Stropheodonta (Brachyprion) philomena. 



BROCKOCTSTIS Foerste. Genotype: Apiocystites tecumseth Billings. 



Brockocystis Foerste, Bull. Sci. Lab. Denison Univ. 17, 1914, p. 468. 



Brockocystis clintonensis (Parks). 



Lepadocystis clintonensis Parks, Amer. Jour. Sci., 29, 1910, p. 404, figs. 1, 2. 

 Brockocystis clintonensis Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 473. 

 Upper Medinan (Cataract): Forks of Credit River, Ontario. 



Brockocystis huronensis (Billings). 



Apiocystites Huronensis Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 



1866, p. 91, fig. 28. Schuchert, Smiths. Misc. Coll., 47, 1904, p. 212. 

 Brockocystis huronensis Foerste, Bull. Sci. Lab. Denison Univ. , 17, 1914, p. 473. 

 Upper Medinan (Cataract): Cabots Head, shore of Lake Huron, Canada. 



Brockocystis tecumseth (Billings). 



Apiocystites? Tecumseth Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada. 



1866, p. 91. Schuchert, Smiths. Misc. Coll., 47. pt. 2, 1904, p. 211. 

 Brockocystis tecumsethi Foerste, Bull. Sci. Lab. Denison Univ., 17, 1914, p. 469. 



pi. 5, fig. 2. 

 Upper Medinan (Cataract): Near South Bay, Manitoulin Island, Lake Huron. 



BROGGERIA Walcott. See Obolus subgenus Broggeria. 

 BRONGNIARTIA Eaton. See Homalonotus Koenig. 

 BRONGNIARTIA CARCINODEA Eaton. See Triarthrus becki. 



