scHucHERT] INDEX AND BIBLIOGRAPHY. 159 



Billingsella festinata (Billings). Lower Cambrian. 



Ortliisiua festinata Billiuga, Pal. Fossils, I, 1861, p. 10, figs. 11, 12;— Geol. Ver- 

 mont, II, 1861, p. 949, figs. 350-352;— American Jour. Sci.,2fl ser., XXXIII, 

 1862, p. 105;— Geology Canada, 1863, p. 284, fig. 289.— Walcott, Bull. U. S. 

 Geol. Survey, 30, 1886, p. 120, pi. 7, fig. 7;— Tenth Ann. Rep. 11. S. Geol. 

 Survey, 1891, p. 613, pi. 72, fig. 7. 



Billingsella festinata Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 230, 



Lnc. S wanton, Vermont; York, Pennsylvania. 



Billingsella (?) grandaeva (Billings). Calciferous (Ord.). 



Urthisina grand;Kva Billings, Canadian Nat. Geol., IV, 1859, p. 349, fig. 1; — 



Geology Canada, 1863, p. 113, fig. 21. 

 Billingsella? granda>va Hall and Clarke, Pal. New York, VIII, Pt. 1, 1892, p. 231. 

 Lot-. Mingan Island, Gulf of St. Lawrence. 



Billingsella latourensis (Matthew). Middle Cambrian. 



Kutorgina latourensis Matthew, Trans. Royal Soc. Canada, III, 1886, p. 42, pi, 5, 



lig. 18.— Hall au^. Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 93, 95, 233, 



pi. 4, figs. 18-20. 



Loc. Portland, New Brunswick. 



Billingsella (?) laurentina (Billings), Anticosti (Sil.). 



Orthislanrentina Billings, Geol. Survey Canada; Rep. for 1856, 1857, p. 297;— Pal, 



Fossils' I, 1862, p. 138, fig. 115. 

 Billingsella? laurentina Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, pp. 



194, 231, 238, pi. 7A, figs. 1-6. 

 Lo<\ Anlicosti. 



Billingsella orientalis (Whitfield), Lower Cambrian. 



Orthisina orientalis Whitfield, Bull. American Mus. Nat. Hist., I, 1884, p. 144, 

 pi. 14, lig. 6.— Walcott, Bull. U. S. Geol. Survey, 30, 1886, p. 120, pi. 7, 

 fig. 6;— Tenth Ann. Rep. U. S. Geol. Survey, 1891, p. 613, pi. 72, tig. 8. 



Billingsella orientalis Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, p. 230. 



Loc. Georgia and Swanton, Vermont. 



Billingsella (?) primordialis (Whitfield), Calciferous (Ord.), 



Streptorhynchus? primordiale Whitfield, Bull. American Mus. Nat. Hist., 1, 1886, 



p. 301, pi. 24, fig. 7. 

 Billingsella f primordiale Hall and Clarke, Pal. New York, VIII, Pt, 1, 1892, p. 231. 

 Loc. Fort Cassin, Vermont. 



Billingsella quacoensis (Matthew). Middle Cambrian. 



Orthis quacoensis Matthew, Trans. Royal Soc. Canada, III, 1886, p. 43, pi. 5, 



fig. 20. 

 Orthis? quacoensis Matthew, Ihidom, VIII, 1891, p, 131. 

 Protorthis quacoensis Hall and Clarke, Pal. New York, VIII, Pt. I, 1892, j). 232, 



pi. 7A, fig. 21. 

 Loc. Portland and St. Martins, New Brnn.swick. 



Billingsella transversa (Walcott). Lower Cambrian. 



Orthisina? transversa Walcott, Bull. U. S. Geol. Survey, 30, 1886, p. 121, pi. 



7, fig. 5;— Tenth Ann. Rep. IT. S. Geol. Survey, 1891, p. 613, pi. 72, fig. 9. 

 Billingsella transversa Hall and Clarke, Pal, New York, VIII, Pt. I, 1892, p. 230. 

 Loc. Georgia, Vermont. 



Billingsella whitfieldi (Walcott). _ Lower Cambrian. 



Kutorgina whitfieldi Walcott, Mon. IT. S. Geol. Survey, VIII, 1884, p. 18, pi. 



9, (ig. 4. 

 Loc. Eureka district, Nevada. 



Billingsia Ford (non de Koninck, 187G) = Elkania. 



