SYNONYMIC REFERENCES. 45 



Present reference. 



ella [Lingulella], Walcott [1886b, pp. 97-98, PL VIII, figs. 4b and 4c] Lingulella dubia. The text includes 



Obolus (Westonia) ella. 

 Walcott [1891a, p. 607, PL LXVII, figs. 2, 2a-b, and 2e]. .Obolus (Westonia) ella. The text includes 



also specimens representing Lingulella 

 dubia. 

 Walcott [1891a, p. 607, PL LXVII, figs. 2c-dJ Lingulella dubia. The text includes Obo- 

 lus (Westonia) ella. 



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



ella [Lingulepis], Hall and Whitfield [1877, p. 232] Do. 



Walcott [1897a, p. 404] Do. 



ella [Obolus], Matthew [1902c, pp. 96 and 110] Do. 



ella [Obolus (Lingulella)], Walcott [1898b, PI. XXVIII, figs. 5-8] Do. 



ella [Obolus (Westonia)], Walcott [1901, p. 691] Do. 



ella onaquiensis [Obolus (Westonia)], Walcott [1908d, pp. 67-68] Obolus (Westonia) ella onaquiensis. 



ellipticus [Obolus (Schmidtia) obtusus], Mickwitz [1896, pp. 177-178] Obolus (Schmidtia) obtusus. 



ellsi [Obolus (Lingulella)], Walcott [1898b, p. 402] Lingulella ellsi. 



elongata [Obolella crassa], Walcott [new] Obolella crassa elongata. 



elongatus [Obolus (Westonia)], Walcott [190Sd, p. 68] Obolus (Westonia) elongatus. 



emmonsi [Acrotreta], Walcott [1905a, p. 300] Acrotreta emmonsi. 



endlichi [Micromitra sculptilis], Walcott [1908d, p. 56] Micromitra sculptilis endlichi. 



Eoobolus Matthew [1902c, p. 97] Lingulella. 



(Eoobolus) [Obolus], Matthew [1903, pp. 135-136] Obolus (in part) and Lingulella (in part). 



(Eoobolus) discus [Obolus], Matthew [1903, pp. 138-139] Lingulella triparilis. 



(Eoobolus) triparilis [Obolus], Matthew [1903, pp. 136-137] Do. 



Eoorthis Walcott [1908d, pp. 102-104] Eoorthis. 



Walcott [1908e, PL XI, and pp. 142 and 148] Do. 



Eoorthis newberryi Walcott [1908d, p. 105] Eoorthis newberryi. 



Eoorthis thyone Walcott [1908d, pp. 105-106] Eoorthis thyone. 



Eoorthis zeno Walcott [1908d, p. 106] Eoorthis zeno. 



Eostrophomena Walcott [1908e, PL XI, and pp. 142 and 148] Eostrophomena. 



(Eostrophomena) [Strophomena], Walcott [1905a, p. 256] Do. 



(Eostrophomena) elegantula [Strophomena], Walcott [1905a, pp. 256-257] .. Eostrophomena elegantula. 



(Eostrophomena) walcotti [Strophomena], Moberg and Segerberg [1906, 

 p. 71] ■. Do. 



erecta [Nisusia (Jamesella)], Walcott [1905a, p. 253] Nisusia (Jamesella) erecta. 



eros [Obolus (Lingulepis)], Walcott [1905a, p. 333] Lingulella (Lingulepis) eros. 



eryx [Acrothele matthewi], Walcott [1905b, p. 11] Acrothele matthewi eryx. 



escasoni [Lingulella(?)], Matthew [1901a, pp. 270-273] Obolus (Westonia) escasoni. 



escasoni [Obolus (Westonia)], Walcott [1901, p. 691] Do. 



escasoni fWestonia], Matthew [1903, pp. 206-209] Do. 



esthonia [Schizambon ?], Walcott [new] Schizambon ? esthonia. 



etheridgei [Huenella], Walcott [1908d, pp. 109-110] Huenella etheridgeL 



etheridgei [Platyceras], Tate [1892, p. 184] Micromitra (Paterina) etheridgei. 



euglyphus [Obolus (Lingulella)], Walcott [1898b, pp. 402-403] Obolus (Westonia) euglyphus. 



euglyphus [Obolus (Westonia)], Walcott [1901, p. 691] Do. 



(Euobolus) [Obolus], Mickwitz [1896, pp. 129 and 133] Lingulella (in part) and Obolus (in part). 



eurekensis [Orthis?], Schuchert [1897, p. 286] Orusia ? eurekensis. 



eurekensis [Orthis], Walcott [1884b, pp. 22-23] Do. 



eurekensis [Orthis (Orusia?)], Walcott [1905a, p. 277] Do. 



eurekensis [Protorthis?], Hall and Clarke [1892c, p. 232] Do. 



excelsis [Trematobolus], Walcott [1908d, pp. 80-81] Trematobolus excelsis. 



exigua [Lingulepis starri], Matthew [1903, pp. 197-198] Lingulella (Lingulepis) exigua. 



exporecta [Orthis], Linnarsson [1876, pp. 12-13] Do. 



exporrecta [Billingsella], Walcott [1905a, pp. 234-236] Billingsella exporrecta. 



exporrecta [Orthis], Kayser [1883, p. 35] Do. 



Wallerius [1895, p. 66] Do. 



exporrecta rugosicostata [Billingsella], Walcott [1905a, p. 236] Billingsella exporrecta rugosicostata. 



extenuatus [Obolus (Schmidtia) obtusus], Mickwitz [1896, pp. 178-179] Obolus (Schmidtia) obtusus. 



exungui [Lingula aff .], Gtirich [1896, p. 214] lyingulella siemiradzkii. 



exunguis [Lingula cf.], Gurich [1892, p. 69] Do. 



Siemiradzki [1886, p. 672] \ Do. 



