CAMBRIAN BRACHIOPODA. 27 



SYNONYMIC REFERENCES. 



The following table contains, arranged alphabetically by genera, subgenera, species, and 

 varieties, a list of the Brachiopoda referred to in this monograph, as they occur in the litera- 

 ture, and gives the present reference of each: 



List, by genera, subgenera, species, and varieties, of the references given in the synonymy, with the present reference of each. 



A. 



Present reference. 



abavia [Acrothele], Matthew [1902b, pp. 398-iOO] Acrothele avia. 



Matthew [1903, pp. 100-101] Do. 



abnormis [Syntrophia], Walcott [1905a, pp. 289-290] Huenella abnormis. 



acadica [Obolus], Walcott [1905a, pp. 324-325] Obolus acadicus. 



Acritis Dall [1877, p. 11] Obolus (Acritis) . 



Oehlert [1887, p. 1264] Do. 



Volborth [1869, pp. 212-217] Do. 



(Acritis) [Obolus], Mickwitz [1896, pp. 205-206] Do. 



Walcott [1901, p. 683] Do. 



Walcott [190Se, PI. XI, and pp. 142 and 144] Do. 



Acritis antiquissima Gagel [1890, p. 22] Obolus (Acritis) antiquissimus. 



Hall and Clarke [1892c, p. 82] Do. 



Volborth [1869, pp. 212-217] Do. 



(Acritis) antiquissimus [Obolus], Mickwitz [1896, pp. 206-213] Do. 



(Acritis) antiquissimus ventrosus [Obolus], Mickwitz [1896, pp. 21S-214].. Do. 



(Acritis?) rugatus [Obolus], Walcott [1901, p. 694] Obolus (Acritis?) rugatus. 



Acrothele Davidson [1883, pp. 213-214] Acrothele. 



Grabauand Shimer [1907, p. 200] Do. 



Hall and Clarke [1892a, pp. 249-250] Do. 



Hall and Clarke [1892b, pp. 565-566] Do. 



Hall and Clarke [1892c, pp. 98-101] Do. 



Linnarsson [1876, pp. 20-21] Do. 



Matthew [1903, pp. 103-105] Do. 



Oehlert [1887, pp. 1269-1270] Do. , 



Walcott [1886b, pp. 107-108] : Do. 



Walcott [1908e, PI. XI, and pp. 142 and 146] Do. 



Zittel [1880, p. 665] Do. 



Acrothele abavia Matthew [1902b, pp. 398^00] Acrothele avia. 



Matthew [1903, pp. 100-101] Do. 



Acrothele artemis Walcott [1908d, p. 82] Acrothele artemis. 



Acrothele avia Matthew [1899b, pp. 202-203] Acrothele avia. 



Matthew [1902b, pp. 396-398] Do. 



Matthew [1903, pp. 55 and 98-99] Do. 



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



Matthew [1903, p. 100] Do. 



Acrothele barbata Moberg and Segerberg [1906, pp. 67-68] Acrothele ceratopygarum. 



Acrothele bellapunctata Walcott [1908d, pp. 82-83] Acrothele bellapunctata. 



Acrothele bellula Walcott [1897b, pp. 716-717] Acrothele bellula. 



Acrothele bergeroni Walcott [1908d, pp. 83-84] Acrothele bergeroni. 



Acrothele bohemica Hall and Clarke [1892c, p. 101] Acrothele bohemica. . . 



Pompeckj [1896b, pp. 509-511] Do. 



Walcott [1886b, p. 107] -... Do. 



Acrothele borgholmensis Walcott [1908d, pp. 84-85] Acrothele borgholmensis. 



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



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



Acrothele colleni Walcott [new] Acrothele coUeni. 



Acrothele coriace Brogger [1878, p. 76] Acrothele coriacea. 



Acrothele coriacea Gronwall [1902, p. 40] Do. 



Linnarsson [1876, pp. 21-23] Do. 



Acrothele decipiens Walcott [1897b, p. 716] Acrothele decipiens. 



Acrothele? dichotoma Walcott [1884b, pp. 14-15] Acrothele dichotoma. 



Acrothele gamagei Grabau [1900, pp. 615-617] , Acrothele gamagei. 



Grabau and Shimer [1907, p. 200] Do. 



Shimer [1907, pp. 176 and 177] Do. 



