58 CAMBRIAN BRACHIOPODA. 



Present reference. 



Lingula (Lingulella) Oehlert, [1887, p. 1261] Lingulella. 



Lingula (Lingulella?) lepis Brogger [1882, p. 44] Lingulella lepis. 



Lingula (Lingulella) lepis Davidson [1866, desc. of PI. Ill] Do. 



Lingula (Lingulepis) Oehlert [1887, p. 1261] Lingulella (Lingulepis). 



lingulse-comes [Tellinomya], McCoy [1851a, p. 56] Lingulella davisi. 



Salter Does not equal Lingulella davisi. 



lingulseformis [Obolus (Leptembolon)], Mickwitz [1896, pp. 200-204] Lingulella (Leptembolon) lingulseformis. 



lingulseformis solidus [Obolus (Leptembolon)], Mickwitz [1896, pp. 204- 



205] Do. 



"Lingulella Bornemann [1891, pp. 435-437] Lingulella. 



Dall [1870, pp. 153 and 159] Do. 



Dall [1877, p. 44] Do.__ 



Davidson [1866, p. 55] Do. 



Davidson [1868, p. 304] Do. 



Delgado [1904, p. 367] Do. 



• Grabauand Shimer [1907, p. 192] Obolus (Westonia). 



Hall and Clarke [1892a, pp. 282-233] Lingulella (in part) and Botsfordia (in part) 



Hall and Clarke [1892b, pp. 548-549] Lingulella. 



Hall and Clarke [1892c, pp. 55-59] Lingulella (in part), Botsfordia (in part), 



Obolus (Westonia) (in part), etc. 



Matthew [1899b, p. 201] Lingulella. 



Matthew [1902c, p. 103] Do. 



Matthew [1903, p. 116] Do. 



Meek [1871, pp. 186-187] Do. 



Salter [1866b, p. 383] Do. 



Salter and Etheridge [1881, p. 537] Do. 



Walcott [1908e, PI. XI, and pp. 142 and 144] Do. 



Zittel [1880, pp. 663-664] Do. 



(Lingulella) [Lingula], Oehlert [1887, p. 1261] Do. 



(Lingulella) [Obolus], Walcott [1898b, pp. 390-392] ■ Do. 



Walcott [1901, p. 683] Do. 



(Lingulella) acutangulus [Obolus], Walcott [1898b, pp. 393 and 394, Pis. 



XXVII and XXVIII] Lingulella acutangula. 



Lingulella? affinis Billings [1872b, p. 468] Obolus (Lingulobolus) affinis. 



Billings [1874, p. 67] Do. 



Lingulella affinis Billings [1882, pp. 15-16] Do. 



Lingulella ampla Schuchert [1897, p. 257] Lingulella ampla. 



(Lingulella) amplus [Obolus], Walcott [1898b, pp. 392 and 394, PL XXVIII] Do. 



(Lingulella) argutus [Obolus] Walcott [1898b, p. 396] Lingulella arguta. 



(Lingulella) atavus [Obolus], Walcott [1902, pp. 609-610] Lingulella atava. 



(Lingulella) auga [Obolus], Walcott [1898b, pp. 396-397] Lingulella auga. 



Lingulella aurora Grabau and Shimer [1907, p. 193] Obolus (Westonia) aurora. 



Hall [1873, pp. 244-245] Do. 



Hall and Clarke [1892c, PI. II, figs. 12 and 13] Do. 



Lingulella aurora var. Hall [1873, pp. 244-245] Obolus (Westonia) stoneanus. 



(Lingulella) bellulus [Obolus], Matthew [1903, p. 205] Lingulella bellula, 



Walcott [1898b, p. 398] Do. 



(Lingulella) bellus [Obolus] , Matthew [1903 , p . 204] Lingulella bella, 



Walcott [1898b, pp. 397-398] Do. 



Walcott [1901, pp. 685-687] Lingulella bella (in part), L. concinna (in 



part), and L. lens (in part). 



(Lingulella) bicensis [Obolus], Walcott [1901, p. 688] Botsfordia ceelata. 



Lingulella? billingsana Schuchert [1897, p. 256] Lingulella grandis (in part) and L. 



billingsiana (in part). 



(Lingulella) bornemanni [Obolus], Walcott [1901, pp. 687-688] Lingulella bornemanni. 



Lingulella buttsi Walcott [1908d, pp. 70-71] Lingulella buttsi. 



Lingulella cselata Ford [1878, pp. 127-128] Botsfordia caelata. 



Hall and Clarke [1892a, PI. Ill, figs. 1-4] Do. 



Hall and Clarke [1892c, pp. 57 and 58] Do. 



Walcott [1886b, p. 95] Do. 



Walcott [1887, p. 199, PI. I, fig. 16] Do. 



Walcott [1891a, p. 607] Do. 



(Lingulella) canius [Obolus], Walcott [1902, pp. 610-611] Lingulella cania. 



