BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 1293 



Trlplecia (Cllftonla) calhounl (Wilson). 



Oxoplecia calhouni Wilson, Bull. Victoria Mem. Mua., 1, 1913, p. 82, fig. 4, 



and pi. 8. 

 Trenton (Collingwood) : Ottawa, Ontario. 



Trlplecia cuspidata (Hall.) 



Atrypa cuspidata Hall, Pal. New York, 1, 1847, p. 138, pi. 33*, fig. 1, and p. 318 — 



Emmons, Amer. Geology, 1, pt. 2, 1855, p. 190. 

 Triplesia cuspidata Hall, Pal. New York, 3, 1859, p. 522.— Hall and Clarke, 



Pal. New York, 8, pt. 1, 1892, p. 270. 

 Trenton: Lowville, New York. 



Triplecia extans (Emmons). 



Atrypa extans Emmons, Geol. New York, Rep. 2d Dist., 1842, p. 395, fig. 6. — 



Hall, Pal. New York, 1, 1847, p. 137, pi. 33, fig. 1.— Owen, Amer. Jour. Sci. 



Arts, 47, 1844, p. 369, fig. 6.— Emmons, Amer. Geology, 1, pt. 2, 1855, 



p. 189, pi. 10, figs. 1, 11; Man. Geol., 1860, p. 99, fig. 88. 

 Triplecia extans Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 270, pi. 11C, 



figs. 1-7.— Raymond, Bull. Amer. Pal., 3, 1902, p. 304, pi. 19, fig. 4. 

 Triplesia extans Hall, Pal. New York, 3, 1859, p. 523, figs. 1-3.— Miller, N. A. 



Geol. Pal., 1889, p. 387, fig. 634— Lesley, Geol. Surv. Pennsylvania, Rep. 



P 4, 1890, p. 1225, figs. 

 Camarella extans Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 112, 



figs. 

 Trenton: Watertown, Lowville, and Boonville, New York. 



Trlplecia insularls anticostiensls Twenhofel. 



Orthis insularis Davidson, Mon. British Foss. Brach., 3, pt. 7, 1871, p. 273, pi. 37, 



figs. 8-15. 

 Triplecia ortoni Schuchert and Twenhofel, Bull. Geol. Soc. Amer., 21, 1910, 



p. 710. 

 Triplecia insularis anticostiensis Twenhofel, Bull. Victoria Mem. Mus., 3, 1914, 



p. 26. 

 Anticostian (Gun River, Jupiter River): Jupiter River, Anticosti. 



Trlplecia nlagarensls Hall and Clarke. 



Triplecia niagarensis Hall and Clarke, Pal. New York, 8, pt. 2, 1895, pi. 83, figs. 

 16-20; 48th Rep. New York State Mus., 2, for 1895, 1897, p. 351, pi. 7, figs. 1-4; 

 14th Rep. State Geol. New York for 1894, 1897, p. 351, pi. 7, figs. 1-4. 

 Niagaran (Racine?): Near Milwaukee, Wisconsin. 



Trlplecia nucleus (Hall). 



Atrypa nucleus Hall, Pal. New York, 1, 1847, p. 138, pi. 33, fig. 2.— Emmons, 



Amer. Geology, 1, pt. 2, 1855, p. 189, pi. 10, fig. 2. 

 Triplesia nucleus Hall, Pal. New York, 3, 1859, p. 522. 

 Triplecia nucleus, Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 270, pi. 11C, 



figs. 8, 9.— Ruedemann, Bull. New York State Mus., 49, for 1901, 1902, p. 24. 

 Camarella nucleus Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 112, figs. 

 Trenton: Middleville and Rysedorph Hill (Rysedorph), New York. 



Trlplecia ortoni (Meek). 



Dicraniscus ortoni Meek, Amer. Jour. Sci., 3d ser., 4, 1872, p. 280. 

 Triplecia ortoni, Hall and Clarke, Pal. New York, 8, pt. 1, 1892, p. 270; pi. 11C, 

 figs. 12-20— Foerste, Geol. Ohio, 7, 1895, p. 585. 



