North American Palaeozoic Crustacea. 9 



decora, Billings, 1866 ; Catalogue Sil. Foss. Anticosti, p. 67. 

 Duryi, Miller, 1874 ; Cincinnati Quart. Jour. Sci., vol. 1, p. 232, figs. 24, 25. 



Hudson River, 

 foetoidea, White & St. John, 1868 ; Trans. Chicago Acad. Sci., vol. 1, p. 126, 



figs. 11 a, b. 

 granvilosa, Hall, 1876 ; 28th Kept. New York State Mus. Nat. Hist., Doc. 



Ed. Expl. 32, fig. 4. Niagara, 



granulosa. Hall, 1876 ; 28th Kept. New York State Mus. Nat. Hist,, p. 186, 



pi. 32, fig. 4. 

 granulosa, Hall, 1883; lltli Ann. Rept. Dept. Geol. Nat. Hist. Indiana, 



p. 331, pi. 34, fig. 4. 

 granulata, Hall, 1859 ; Pal. New York, vol. 3, p. 377, pi. 79 b, figs. 1 a-d. 



Lower Helderberg. 



Jonesii, Dawson, 1868 ; Acadian Geology, p. 313, fig. 132. Carboniferous. 



Agnostus latus, Vanuxem, 1842; Geology New York, 3d Geol. Dist., p. 80. 



Clinton. 



Beyrichia lata, Hall, .1859 ; Pal. New York, vol. 2, p. 301, pi. A 66, figs. lOa-c. 



lata, Jones, 1858; Notes on Paljeozoic Entomostraca, No. 2, p. 168, pi. 6, 



fig. 13. 

 Utho/actor, White & St. John ; Prelim, notice new genera and species of 



Fossils, May 8, 1867, p. 2. Coal Measures. 



hthofactor var. velata, ditto, p. 2. 



petrifactor. White & St. John ; Trans. Chicago Acad. Sci., vol. 1, p. 125. 

 petrifactor var. velata, ditto, p. 126. 

 Logani, Jones, 1858; Annals and Mag. Nat. Hist., London, 3d series, 



vol. 1, p. 244, pi. 9, figs 6-10. Chazy. 



Logani, Jones, 1858 ; Geol. Survey Canada, Dec. 3, p. 91, pi. 11, figs. 1-5. 

 Logani var. reniformis, Jones ; ditto, p. 91, pi. 11, fig. 1. 

 Logani var. leperditoides, Jones ; ditto, p. 91, pi. 11, fig. 5. 

 Maccoyana, Jones, 1855 ; Annals & Mag. Nat. Hist. London, vol. 16, p. 88, 



pi. 5, fig. 14. Onondaga. 



Maccoyana, Jones, 1858; ditto, 3d series, London, vol. 1, p. 252, pi. 10, 

 • fig. 15. 

 Maccoyana, Jones, 1858 ; Geol. Survey Pennsylvania, vol. 2, p. 834, 



fig. 695. 

 Nova Scotica, .Jones & Kirkby, 1884; Geol. Mag., 3d series, vol. 1, p. 357, 



pi. 12, figs. 5, 6. Carboniferous. 



Beyrichia sp. ? Dawson, 1868 ; Acadian Geology, p. 256, fig. 78 c. 



notata. Hall, 1859 ; Pal. New York, vol. 3, p. 379, pi. 79 b, figs. 3 a, b, c. 



Lower Helderberg. 

 notata, var. ventricosa. Hall, 1859; ditto, p. 380, pi. 79 b, figs. 4 a, b, c. 

 (Primitia) occidentalis, Walcott, 1884; Pal. Eureka Dist., Mon. U. S. 



Geol. Survey, No. 8, p. 104, pi. 17, figs. 4, 4 a. Devonian, 



oculifera, Hall, 1871 ; Pamphlet Cincinnati group, p. 8. Hudson River, 

 oculifera. Hall, 1872 ; 24th Rept. New York State Mus. Nat. Hist., p. 232, 



pi. 8, figs. 9, 10. 



