North American Palaeozoic Crustacea. 21 



lacnstris, Harlan, 1835 ; Med. Phys. Researches, p. 297, plate, fig. 2. 

 lacustris, Hall, 1859 ; Pal. New York, vol. 3, p. 407*, pi. 81, figs. 1-11 ; 

 pi. 81 a, fig. 1 ; pi. 81b, figs. 1-5 ; pi. 83 b, fig. 3 ; also fig. 5 in text 

 p. 400*. 

 lacustris, var. robustus. Hall, 1859 ; Pal. New York, vol. 3, p. 410*, 



pi. 81c, fig. 2. 



{DoUchopterus) Mansfieldi, Hall, C. E., 1877 ; Proc. Am. Philos. Soc, 



vol. 16, p. 621. Carboniferous. 



Mansfieldi, Hall, 1884; 2d Geol. Survey Pennsylvania, vol. PPP, p. 32, 



pi. 4, figs. 1-8 ; pi. 5, figs. 1-11 ; pi. 6, fig. 1 ; pi. 7, fig. 1 ; pi. 8, figs. 1-3. 



(Anthraconectes) Mazonensis, Meek & Worthen, 1868 ; Am. .Tour. Sci., 



2d series, vol. 46, p. 21. Coal Measures. 



(Anthraconectes) Mazonensis, Meek & Worthen, 1868 ; Geol. Survey Illinois, 



vol. 3, p. 544, figs. 

 (Anthi-aconectes) Mazonensis, Hall, 1884 ; 2d Geol. Survey Pennsylvania, 



vol. PPP, p. 25, fig. 2 ; p. 27, fig. 3. 

 (Anthraconectes) Mazonensis, White, 1884; 13th Ann. Rept. Dept. Geol. 



Nat. Hist. Indiana, p. 168, pi. 37, figs.'l, 2, 3. 

 microphthalmus, Hall, 1859 ; Pal. New York, vol. 3, p. 407*, pi. 80a, fig. 7. 



Lower Helderberg. 

 pachycheirus. Hall, 1859 ; Pal. New York, vol. 3, p. 412*, pi. 8, figs. 1-3. 



Waterlime. 



Pennsylvanicus, Hall, C. E., 1877; Trans. Am. Philos. Soc. Phila., vol. 7, 



p. 621. Carboniferous. 



Pennsylvanicus, Hall, 1884; 2d Geol. Survey Pennsylvania, vol. PPP, 



p. 31, pi. 5, fig. 18. 

 Pohlmani, Vogdes, 1889 ; to take the place of the pre-occupied name of 



E. scorpionis, Grote & Pitt. Ann. N. Y. Acad. Sci., vol. v, No. 1. 

 potens. Hall, 1884; 2d Geol. Survey Pennsylvania, vol. PPP, pi. 4, 

 figs. 9, 10. Carboniferous, 



prominens, Hall, 1884; Proc. Am. Assoc. Adv. Sci., vol. 33, p. 420. 



Clinton, 

 prominens. Hall & Clarke, 1888 ; Pal. New York, vol. 7, p. 157, pi. 27, 



figs. 3, 4. 

 pulicaris, Salter, 1863 ; Quart. Jour. Geol. Soc. London, vol. 19, p. 78, 

 figs. 9, 10. Coal Measures, 



pulicaris, Dawson, 1868 ; Acadian Geology, p. 523, figs. 179 a, b. 

 pustulosus, Hall, 1859 ; Pal. New York, vol. 3, p. 413*, pi. 83 b, fig. 1. 



Waterlime. 

 Eurypterus reraipes. Waterlime. 



Fossil fish, Mitchell, 1818 ; Am. Monthly Mag., vol. 3, p. 291. 

 Eurypterus remipes, De Kay, 1825 ; Annals Lyceum Nat. Hist. New York, 

 vol. 1, p. 375, pi. 29. 

 remipes, Harlan, 1834; Trans. Geol. Soc. Pennsylvania, vol. 1, p. 96, pi. 5. 

 remipes, Harlan, 1835 ; Medical Phys. Researches, p. 297, plate, fig. 1. 

 remipes, Milne-Edwards, 1840 ; Hist. Nat. Crust., yol. 3, p. 422. 

 remipes, Burmeister, 1843 ; Org. Trilobiten, p. 62 ; Ray Soc. Ed. p. 54. 



