SYNONYMIC REFERENCES. 39 



Present reference. 



Camarella calcifera Billings [1863, figs. 247a-c, p. 231] Syntrophia calcifera. 



Camarella minor Hall and Clarke [1893b, p. 221] Obolella minor. 



Camarella? minor Walcott [1891a, p. 614] Do. 



Cambria [Schuchertina], Walcott [1905a, pp. 323-324] Schuchertina cambria. 



Cambria [Syntrophia], Walcott [1908d, pp. 106-107] Syntrophia cambria. 



Camarella antiquata Billings [1861b, pp. 10-11] Swantonia antiquata. 



Billings [1861c, p. 949] ■. Do. 



Billings [1862e, p. 221] ' Do. 



Billings [1863, fig. 290, p. 284] Do. 



Camerella calcifera Billings [1861a, pp. 318-320] Syntrophia calcifera. 



Billings [1865a, p. 220] Do. 



Meek [1873, p. 464] Huenella abnormis. 



Camerella minor Walcott [lS90b, pp. 36-37] Obolella minor. 



Camerella sp.? Shumard [1861, p. 221] Huenella texana. 



campbelli [Syntrophia], Walcott [1908d, pp. 107-108] Syntrophia campbelli. 



cancellata [Acrotreta?], Walcott [1905a, p. 299] Acrotreta?? cancellata. 



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



carinata [Acrotreta], Moberg and Segerberg [1906, p. 66] Acrotreta carinata. 



Causea Wiman [1902, pp. 53-54] Mickwitzia. 



Causea formosa Wiman [1902, pp. 53-54] Mickwitzia ) 



cedens [Lingula], Barrande [1868a, p. 102] Lingulella cedens. 



Barrande [1868b, pp. 691-692] • Do. 



celata [Schmidtia], Hall and Clarke [1892a, p. 244] Obolus (Schmidtia) celatus. 



Hall and Clarke [1892b, p. 560] Do. 



Hall and Clarke [1892c, p. 83] Do. 



Volborth [1869, pp. 209-212] Do. 



celatus [Obolus (Lingulella)], Walcott [1898b, PL XXVI, figs. 1 and 2] Do. 



celatus [Obolus (Schmidtia)], Mickwitz [1896, pp. 159-163] Do 



celatus orbiculatus [Obolus], Moberg and Segerberg [1906, p. 65] Do 



Westergard [1909, p. 56] Do. 



Wiman [1902, p. 62] Do. 



celatus orbiculatus [Obolus (Schmidtia)], Mickwitz [1896, pp. 163-165] Do. 



celatus prsecisus [Obolus (Schmidtia)], Mickwitz [1896, pp. 166-167] Do. 



ceratopygarum [Acrothele], Moberg and Segerberg [1906, p. 67] Acrothele ceratopygarum. 



ceratopygarum [Discina (Acrotreta?)], Brogger [1882, p. 47] Do. 



ceratopygonum [Acrotliele], Walcott [1902, p. 598] Do. 



chinensis [Obolus (Lingulella)], Walcott [1905a, pp. 328-329] Obolus chinensis. 



christianise [Orthis], Brogger [1882, p. 48] Boorthis christianise (inpart) and E. daunus 



(in part). 



Gagel [1890, pp. 10 and 34] Eoorthis daunus. 



Kjerulf [1865, pp. 1 and 3] Eoorthis christianise. 



Pompeck] [1902, p. 7] Eoorthis daunus. 



Remel6 [1881, p. 69] Do. 



Remele [1885, p. 6] Do. 



Roemer [1885, pp. 36, 37, and 38] Do. 



christianise [Orthis (Plectorthis)], Moberg and Segerberg [1906, p. 69] Eoorthis christiania (in part only). The 



reference includes also E. daunus and E. 

 tullbergi. 



Walcott [1905a, pp. 260-261] Eoorthis christianise. 



chromatica [Obolella], Billings [1861b, pp. 7-8] Obolella chromatica. 



Billings [1861c, p. 947] Do. 



Billings [1862e, p. 219] Do. 



Billings [1863, p. 284] Do. 



Billings [1876, pp. 176-178] Do. 



Ford [1881, p. 133] Do. 



Hall [1863, p. 132] Do. 



Hall [1867, p. 110] Do. 



Hall and Clarke [1892c, p. 67] '.. Do. 



von Toll [1899, p. 27] ■ (?) (See p. 592.) 



Walcott [1885a, pp. 115 and 117] Obolella crassa. 



Walcott [1886b, p. 112] Obolella chromatica. 



Walcott [1891a, p. 611] Do. 



Walcott [1899, p. 446] Do. 



Walcott [1905a, p. 313] Do. 



