54 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Ap arc-kites millepunctatus (Ulrich). 



Leperditia millepunctata Ulrich, Amer. Geol., 10, 1892, p. 268, pi. 9, figs. 37-39. 

 Aparchites millepunctatus Ulrich, Geol. Minnesota, 3, pt. 2, 1894, p. 645, pi. 45, 



figs. 16-18. 



Black River (Decorah): Fountain, Minnesota. 

 Holotype.C&t. No. 41837, U.S.N.M. 



Aparchites minutissimus (Hall). 



Leperditia (Isochilina) minutissima Hall, 24th Rep. New York State Cab. Nat. 



Hist., 1872, p. 231, pi. 8, fig. 13 (adv. sheet 1871, p. 7). Hall and Whitfield, 



Geol. Surv. Ohio, Pal., 2, 1875, p. 102, pi. 4, fig. 4. 



Leperditia minutissima Miller, Cincinnati Quart. Jour. Sci., 1, 1874, p. 122. 

 Aparchites minutissimus Ulrich, Geol. Surv. Canada, Cont. Micro-Pal., pt. 2, 



1889, p. 49, pi. 9, fig. 5. Whiteaves, ibid., Pal. Foss., 3, pt. 2, 1895, p. 126 



(loc. occ.). 

 Eden-Richmond: Cincinnati, Ohio, and vicinity; Stony Mountain, Manitoba, 



Anticosti, etc. 



Aparchites minutissimus robustus Ruedemann. 



Aparchites minutissimus var. robustus Ruedemann, Bull. New York State Mus., 



49, 1901, p. 74, pi. 7, figs. 6-11. 

 Mohawkian (Rysedorph): Rysedorph Hill, Rensselaer County, New York. 



Aparchites minutissimus trentonensis Ulrich. 



Aparchites minutissimus var. trentonensis Ulrich, Geol. Minnesota, 3, pt. 2, 1894, 



p. 646, pi. 43, figs. 18-20. 

 Black River (Decorah) and Trenton (Prosser): Fountain, Cannon Falls, etc., 



Minnesota. 

 Cotypes.C&t. Nos. 41302, 41303, U.S.N.M. 



Aparchites mundulus Jones. 



Aparchites mundulus Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, 



p. 62, pi. 10, figs. 12a, b. 

 Trenton: Falls of Lorette, Quebec. 



Aparchites oblongus Ulrich. 



Aparchites oblongus Ulrich, Jour. Cincinnati Soc. Nat. Hist., 13, 1890, p. 137, pi. 



10, figs. lOa-lOc. 



Richmond (Arnheim): Middletown, Ohio. 

 Holotype.C&t. No. 41811, U.S.N.M. 



Aparchites parvulus Jones. 



Aparchites parvulus Jones, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, p. 230, 



pi. 22, figs. 4a-4c. 

 Black River or Richmond: Little Black Island, Lake Winnipeg, Canada. 



Aparchites tyrrelli Jones. 



Aparchites Tyrrellii Jones, Geol. Surv. Canada, Cont. Micro-Pal., pt. 3, 1891, p. 62, 

 pi. 13, figs. 14a-c. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, 

 p. 242 (loc. occ.). 

 Black River or Richmond: Great Black Island, Like Winnipeg, Canada. 



APARCHITES UNICORNIS Ulrich. See Primitiella unicornis. 



Aparchites whiteavesi Jones. 



Aparchites Whiteavesi Jones, Ann. Mag. Nat. Hist., 6th ser., 3, 1889, p. 384, figs. 

 5, 6, pi. 17, fig. 10. Whiteaves, Geol. Surv. Canada, Pal. Foss., 3, pt. 3, 1897, 

 p. 230. 

 Black River or Richmond: Lower Fort Garry, St. Andrew, Manitoba. 



