BIBLIOGRAPHIC LIST OF GENEBA AND SPECIES. 737 



Lingulella conclnua Matthew. 



Lingulella concinna Matthew, Bull. Nat. Hist. Soc. New Brunswick, 4, pt. 4, 



No. 19, 1901, pp. 273-274, pi. 5, figs. 2a-b.— Walcott, Mon. U. S. Geol. Surv., 



51, 1912, p. 486, pi. 33, figs. 2a-h; pi. 34, figs. la-r. 

 Obolus (Lingulella) bellus Walcott, Proc. U. S. Nat. Mus., 23, 1901, p. 685. 

 Obolus (Linguella) concinnus Walcott, Proc. U. S. Nat. Mus., 25, pp. 608, 609. 

 Lingulella concinna Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks Cape 



Breton, 1903, pp. 203-204, pi. 14, figs. 5a, b. 

 Canadian (Bretonian — Div. C3c): McNeil Brook, Bararhois Glen, etc., Cape 



Breton, Nova Scotia. 



Lingulella ctjneata Matthew. See Lingulella grandis. 



Lingulella davisi (McCoy). 



Lingula davisi McCoy, Quart. Jour. Geol. Soc. London, 8, 1851, pp^ 405-406; 



British Pal. Foss., 1854, p. 252, pi. 2, figs. 7a-b. 

 Lingulella davisii Davidson, Brit. Foss. Brach., 3, pt. 7, No. 1, 1866, pp. 56, 57, 



pi. 4, figs. 1-16.— Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 56, 57, 



fig. 18.— Hoek, Neues Jahrb. Geol., Min. Pal., 34, 1912, p. 219. 

 Lingulella cf. davisii Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks Cape 



Breton, 1903, p. 203; Bull. Nat. Hist. Soc. New Brunswick, 4, pt. 5, No. 20, 



1902, pp. 407, 408. 

 Lingulella davisi Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 489, pi. 30, figs. 2, 



2a; pi. 31, figs. 6a-h. (See for complete bibliography.) 

 Ordovician (Coniston — Bala): Coniston, Lancashire, England. Upper and lower 



Lingula flags of North Wales. 

 Canadian: McLeod Brook, near Boisdale, Cape Breton, Nova Scotia (Bretonian — 



Div. C3c2); Bolivia. 

 Plesiotypes.— Cat. Nos. 35239, 51740, U.S.N.M. 



Lingulella desiderata (Walcott). 



Obolus (Lingulella) desiderata Walcott, Proc. U. S. Nat. Mus., 21, 1898, pp. 399, 



400; Mon. U. S. Geol. Surv., 32, pt. 2, pp. 445, 446, pi. 40, fig. 2 (not 2a). 

 Lingulella desiderata Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 492, pi. 20, 



figs. 4a-c, 5, 5a. 

 Lower Ordovician: Near Colorado Springs, El Paso County, Ouray County, etc., 



Colorado. Also Upper and Middle Cambrian of Montana, etc. 

 Eolotype and plesiotypes. — Cat. Nob. 27355, 33867, etc., U.S.N.M. 



Lingulella ellsi (Walcott). 



Obolus (Lingulella) ellsi Walcott, Proc. U. S. Nat. Mus., 21, 1898, p. 402. 

 Lingulella ellsi Walcott, Mon. U. S. Geol. Surv., 51, 1912, p. 495, pi. 19, figs. 3, 3a-c. 

 Canadian ("Upper Sillery"): Chaudiere River at Grand Trunk Railroad bridge, 



Quebec. 

 Eolotype and paratypes. — Cat. No. 27315, U.S.N.M. 



Lingulella(?) escasoni Matthew. See Obolus (Westonia) escasoni. 



Lingulella (Lingulepis) exigua (Matthew). 



Obolus (Lingulepis) gregwa Walcott (in part) (not Matthew), Proc. U. S. Nat. 



Mus., 23, -1901, pp. 692-694. 

 Lingulepis starri var. Matthew, Geol. Surv. Canada, Rep. Cambrian Rocks Cape 



Breton, 1903, pp. 193-197, pi. 14, figs. 2a-c. 

 Lingulepis starri exigua Matthew, ibid., 1903, pp. 197, 198, pi. 14, figs. 3a-d. 



