36 CAMBEIAN BEACHIOPODA. 



Present reference. 



bavarica [Lingula], Barrande [1868a, p. 100] Obolus? bavaricus. 



Barrande [1868b, pp. 690-691] Do. 



bavarica [Orthis], Barrande [1868a, p. 99] Eoorthis bavarica. 



Barrande [1868b, p. 690] Do. 



bella [Iphidea], Billings [1872b, pp. 477^78] Micromitra (Paterina) bella. 



Billings [1874, p. 76] Do. 



Billings [1882, p. 13] Do. 



Clark and Mathews [1906, p. 252] Do. 



Grabau and Shimer [1907, p. 201] Do. 



Hall and Clarke [1892a, p. 249] Micromitra (Paterina) labradorica swanton- 



ensis. 

 Hall and Clarke [1892c, p. 98, fig. 54] Micromitra (Paterina) bella. The text in- 

 cludes both M. (P.) bella and M. (P.) 

 labradorica swantonensis. 

 Hall and Clarke [1892c, p. 98, PL IV, figs. 8 and 9] Micromitra (Paterina) labradorica swanton- 

 ensis. The text includes both M. (P.) 

 labradorica swantonensis and M. (P.) 

 bella. 



Oehlert [1887, p. 1270] Micromitra (Paterina) bella. 



Walcott [1886b, p. 100] Do. 



Walcott [1891a, p. 608] Do. 



bella? [Iphidea], Grabau [1900, pp. 617-618] Do. 



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



bellatula [Acrotreta], Walcott [1908d, pp. 93-94] Acrotreta bellatula. 



belli [Lingula], Billings [1859, pp. 431^32] Obolus beUi. 



• Billings [1863, figs. 47a-b, p. 124] Do. 



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



bellula [Elkania], Walcott [1905a, p. 323] Obolus (Pordinia) bellulus. 



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



Walcott [1898b, p. 398] Do. 



bellus [Obolus (Lingulella)], 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). 



belti [Linnarssonia], Matley [1902, p. 145] Acrotreta belti. 



belti? [Linnarssonia], Matthew [1892, pp. 42-43] (?) This species is not specifically referred 



in this monograph; it does not belong 

 with Acrotreta belti. 



belti [Linnarssonia cf.], Matthew [1903, pp. 209-210] Do. 



belti [Obolella], Davidson [1868, pp. 310-311] Acrotreta belti. 



Davidson [1871, pp. 340-341] Do. 



belti [Obolella sagittalis], Davidson [1871, desc. of PI. L, figs. 15-17] Do. 



belti magna [Linnarssonia], Matthew [1897b, pp. 169-170] Acrotreta sagittalis magna. 



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



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



Bicia Walcott [1901, pp. 676-678] Bicia. 



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



Bicia gemma Walcott [1901, pp. 678-680] Bicia gemma. 



Bicia whiteavesi Walcott [1901, p. 680] Bicia whiteavesi. 



billingsana [Lingula], Matthew [1903, p. 205] Lingulella bellula. 



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



iana (in part). 



Dillingsella Grabau and Shimor [1907, p. 210] Billingsella. 



Halland Clarke [1892a, p. 273] Do. 



Halland Clarke [1892b, p. 589] Do. 



Hall and Clarke [1892c, pp. 230-231] Billingsella (in part) and Nisusia (in part). 



Schuchert [1897. p. 158] ' Billingsella (in part), Protorthis (in part), 



and Nisusia (in part). 



Walcott [1905a, pp. 227-229] Billingsella (in part) and Wimanella /in 



part). 



Walcott []908e, PL XI, and pp. 142 and 148] Billingsella. 



Billingsella alberta Schuchert [1807, p. 158] Nisusia alberta. 



Billingsella? anomala Walcott [1905a. p. 230] Wimanella ? anomala. 



