sciinnEin.] INDEX AND BIBLIOGRAPHY. 159 



Billingsella festinata (Hillings). Lower Cambrian. 



Oithisiua fostinata Hilliiij^H, Pal. Fossils, I, 1801, p. 10, figs. 11, 12;— Geol. Ver- 

 mont, II, ISGl, p. !»49, figs. 3.50-351';— American .Jour. Sci., 2fl ser., XXXIII, 

 18G2, p. 105;— Geology Cana<la, 1863, p. 281, Jig. 289.— Walcott, Bull. U. S. 

 Geol. Survey, 30, 1880, p. 120, pi. 7, fig. 7;— Tenth Ann. Ke]). U. S. Geol. 

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



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



Loc. Swanton, Vermont ; York, Pennsylvania. 



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



Oitliisiua granda'va Hillings, 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, \I1I, Pt. 1, 1892, p. 231. 

 /,()(■. Mingau Island, Gulf of St. Lawrence. 



Billingsella latourensis (Matthew). Middle Cambrian. 



Kutorgina latourensis Matthew, Trans. Royal Soc. Canada, 111, 1886, p. 42, pi. 5, 



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



pi. 4, figs. 18-20. 



Lor. Portland, New i'runswick. 



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



Orthislaurentina Billings, Geol. Survey Canada; Pep. for 1856, 1S57, p. 297; — Pal. 



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

 Billingsellaf laurentina Hall and Clarke, Pal. New York, ^■1I1. Pt. 1, 1892, pp. 



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

 Loc Anticosti. 



Billingsella orientalis (Whitfield). Lower Cambrian. 



Ortliisina orientalis Whitfield, Bull. American Mus. Nat. Hist., I, 1884, j). 144, 

 pi. 14, Wg. 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, fig. 8. 



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



Lor. Georgia an<l Swanton, Vermont. 



Billingsella (?) primordialis (Whitfield). Calciferons (Ord.). 



Streptorhynchus? primordialo Whitfield, Bull. American Mus. Nat. Hist., I, 1886, 



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

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

 Zor. Fort C.assin, Vermont. 



Billingsella quacoensis (Matthew). Middle Cambrian. 



Orthis quacoensis Matthew, Trans. Royal Soc. Canada, 111. 1SS6, p. 43, pi. 5, 



fig. 20. 

 Orthisf (|uncoensis Matthew. Ibidem, VIII, 1891, p. 131. 

 Protorthis quacoensis Hall and Clarke, Pal. New Y'ork, VIII, Pt. I, 1892, p. 232, 



pi. 7A, fig. 21. 

 Lor. j'ortland :ind St. Martins, New Brunswick. 



Billingsella transversa (Walcott). Lower Cambrian. 



Ortbisinaf triinsversa Walcott, Bull. U. S. Geol. Survey, 30, 1886, p. 121, pi. 



7, fig. 5;— Tenth Ann. Rep. U. S. Geol. Survey, 1891, p. 61.3, pi. 72, fig. 9. 

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

 ],or. <ieorgi;i, N'erinont. 



Billingsella whitfieldi (Wah;ott). Lower Cambrian. 



Kutorgina whitlieldi Walcott, :Mon. IJ. S. Geol. Survey, VIII, 18S4, p. IS, pi. 



9, fig. 4. 

 L^oc. Eureka district, Novad.n. 

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



