86 CAMBRIAN BRACHIOPODA. 



Present reference. 



prospectensia [Kutorgina], Walcott [1884b, p. 19] Micromitra (Paterina) prospectensis. 



Walcott [1886b, pp. 106-107] Do. 



Walcott [1891a, p. 610] Do. 



Protorhyncha? antiquata Schuchert [1897, p. 834] Swantonia antiquata. 



Protorhyncha? minor Schuchert [1897, p. 334] Obolella minor. 



Protorthis Grabau and Shimer [1907, p. 211] Protorthis. 



Hall and Clarke [1892a, pp. 273-274] Do. 



Hall and Clarke [1892b, pp. 589-590] Do. 



Halland Clarke [1892c, pp. 231-233] Do. 



Walcott [1905a, pp. 280-281] Do. 



Walcott [1908e, PI. XI, and pp. 142 and 147] Do. 



Protorthia billings! Hall and Clarke [1892a, p. 274] Protorthis billingsi. 



Hall and Clarke [1892c, pp. 219 and 232] Do. 



Walcott [1905a, pp. 281-282] Do. 



(Protorthis) billingsi [Orthis], Wysogorski [1900, p. 227] Do. 



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



Protorthis helena Walcott [1905a, p. 282] Protorthis helena. 



Protorthis? hunnebergensis Moberg and Segerberg [1906, pp. 70-71] Protorthis? hunnebergensis. 



Protorthis Isevis Walcott [1905a,*p. 283] Protorthis Isevis. 



Protorthis latom-ensis Walcott [1905a, pp. 282-283] Protorthis latourensis. 



Protorthis nautes Walcott [1905a, pp. 283-284] Nisusia (Jamesella) nautes. 



Protorthis? nunnebergensis Walcott [1905a, p. 284] Protorthis? hunnebergensis. 



Protorthis quacoensis Hall and Clarke [1892c, p. 232] Protorthis quacoensis. 



Walcott [1905a, pp. 284-285] Do. 



Protorthis spencei Walcott [1905a, p. 285] Nisusia (Jamesella) spencei. 



Protorthis wingi Walcott [1905a, p. 286] Protorthis wingi. 



Protorthis ep. undt. Walcott [1905a, p. 286] Protorthis sp. undt. 



Protorthis (Billingsella) billingsi Grabau and Shimer [1907, p. 211] Protorthis billingsi. 



Protorthis (Loperia) Walcott [1905a, p. 287] Protorthis (Loperia). 



Walcott [1908e, PL XI, and pp. 142 and 147] Do. 



Protorthis (Loperia) dougaldensis Walcott [1905a, pp. 287-288] Protorthis (Loperia) dugaldensis. 



Protosiphon Matthew [1897a, pp. 68-69] Trematobolus. 



Matthew [1898a, pp. 129-130] Do. 



Protosiphon kempanum Matthew [1897a, pp. 70-71] Trematobolus kempanum. 



Matthew [1898a, p. 131] Do. 



pulcher [Obolua?], Halland Clarke [1892c, pp. 81 and 183] .Botstordia pulchra. 



pulcher [Obolus], Matthew [1889, p. 306] '. Do. 



Matthew [1890, pp. 151-155] Do. 



pulcher [Obolus (Botsfordia)], Matthew [1891, p. 148] Do. 



Matthew [1892, pp. 62-63] Do. 



Matthew [1902c, p. 95] Do. 



pulchra [Obolus (Botsfordia)],, Matthew [1894, pp. 90-91] Do. 



Matthew [1895a, pp. 115-121] Do. 



pumila [Lingulepis], Matthew [1903, p. 75] Lingulella (Lingulepis) pumila. 



pumpellyi [Billingsella], Walcott [1905a, p. 242] Billingsella pumpellyi. 



punctatus [Obolus (Lingulella)], Walcott [1898b, pp. 412-413] Lingulella punctata. 



pusilla [Kutorgina cingulata], Gronwall [1902, p. 40] Micromitra pusilla. 



Linnarsson [1876, p. 25] Do. 



Matley [1902, pp. 146-147] Do. 



puteis [Acrothele avia], Matthew [1902b, p. 398] Acrothele avia puteis. 



Matthew [1903, p. 100] Do. 



pygmsea [Lingula], Davidson [1866, p. 53] Lingulella (Lingulepis?) pygmsea. 



Matley [1902, p. 141] Do. 



Phillips [1871, p. 68] Do. 



Salter [1865, p. 102] Do. 



pyxidicula [Acrotreta], White [1874, p. 9] , Acrotreta pyxidicula. 



White [1877, pp. 53-54] Do. 



Q. 



quacoensis [Billingsella], Schuchert [1897, p. 159] Protorthis quacoensis. 



quacoensis [Orthis], Matthew [1886, pp. 43^4] Do. 



quacoensis [Orthisina], Matthew [1891, p. 131] Do. 



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



Walcott [1905a, pp. 284-285] Do. 



