864 BULLETIN" 92, UNITED STATES NATIONAL MUSEUM. 



Obolus (Westonla) notcheusis Walcott. 



Obolus (Westonia) notchensis Walcott, Smiths. Misc. Coll., 53, 1908, p. 69, pi. 7, 



fig. 13; Mon. U. S. Geol. Surv., 51, 1912, p. 463. 

 Lower Ordovician: Notch Peak, House Range, Millard County, Utah. 

 Eolotype— C&t. No. 51731, U.S.N.M. 



Obolus (Linqxtlella) pelias Walcott. See Obolus mcconnelli pelias. 



Obolus (Lingulella) pogonipensis Walcott. See Lingulella pogonipensis. 



Obolus refulgens Matthew. 



Obolus refulgens Matthew, Trans. Roy. Soc. Canada, 9, 1892, p. 44, pi. 12, figs. 



6a-6d.— Mickwitz, Mem. l'Acad. Imp. Sci. St. P6tersbourg, 8, 1896, p. 23.— 



Matthew, Trans. Roy. Soc. Canada, 2d ser., 8, sec. 4, 1890, p. 96, pi. op. 



p. 112, figs, lla-b — Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 409, pi. 9, 



figs. 2a-d. 

 Obolus (Monobolina) refulgens Matthew, Trans. Roy. Soc. Canada, 2d ser., 8, 



Bee. 4, 1902, p. 98. 

 Monobolina refulgens Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks Cape 



Breton, 1903, p. 210, pi. 16, figs. 2a, b; also pi. 11, fig. 4.— Hahn, Ann. New 



York Acad. Sci., 22, 1912, p. 142. 

 Canadian (Bretonian — Div. C3c): Navy Island, St. John Harbor, New Brunswick; 



and McLeod Brook, Cape Breton, Nova Scotia. 



Obolus (Westonia) rogersi (Walcott). 



Lingula prima Rogers (not Conrad MS., Hall), Proc. Boston Soc. Nat. Hist., 7, 

 1861, p. 390. 



Lingula antiqua Rogers (not Emmons), Proc. Boston Soc. Nat. Hist., 7, 1861, 

 p. 390. 



Obolus (Lingulella) rogersi Walcott, Proc. U. S. Nat. Mus., 21, 1898, pp. 413-415. 



Lingulella rogersi Grabau, Occas. Papers Boston Soc. Nat. Hist., 1, pt. 3, 1900, 

 p. 624, pi. 31, fig. 4. 



Obolus (Westonia) rogersi Walcott, Proc. U. S. Nat. Mus., 23, 1901, p. 691; Mon. 

 U. S. Geol. Surv., 51, 1912, p. 463, pi. 42, figs. 2, 2a-d. 



Lower Ordovician: Limestone pebbles on beach at Marthas Vineyard, Massachu- 

 setts, and at Newport, etc., Rhode Island; also pebbles in Carboniferous 

 conglomerate north of Fall River, Bristol County, Massachusetts. 



Eolotype and paraty pes. —Cat. No. 27337, U.S.N.M. 



Obolus rotundatus (Walcott). 



Obolus (Lingulella) rotundatus Walcott, Proc. U. S. Nat. Mus., 21, 1898, p. 415. 



Obolus (Lingulella) desideratus Walcott, Mon. U. S. Geol. Surv., 32, pt. 2, 1899, 

 pp. 445-446, pi. 60, fig. 2a (not fig. 2). 



Obolus rotundatus Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 411, pi. 20, figs. 

 2, 2a-e. 



Lower Ordovician: Schellbourne, Schell Creek Range, White Pine County, Ne- 

 vada. Also Upper and Middle Cambrian of Nevada, Montana, etc. 



Eolotype and paratypes — Cat. No. 27337, 27338, U.S.N.M. 



Obolus (Broggeria) salterl (Holl). 



Obolella salteri Holl, Quart. Jour. Geol. Soc. London, 21, pt. 1, 1865, p. 102, figs. 



9a-b.— Davidson, British Foss. Brach., 3, pt. 7, 1866, pp. 61-62, pi. 4, figs. 



28, 29. 

 Obolus (Broggeria) salteri Walcott, Proc. U. S. Nat. Mus., 1902, 25, pp. 605-606; 



Mon. U. S. Geol. Surv., 51, 1912, p. 424, pi. 13, figs, la-n; pi. 15, figs. 4a-d. 



