178 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Camarotoechia plsa (Hall and Whitfield). 



Rhynchonella pisa Hall and Whitfield, Pal. Ohio, 2, 1875, p. 135, pi. 7, figs. 

 18-22. Nettelroth, Kentucky Fossil Shells, Mem. Kentucky Geol. Surv., 

 1889, p. 78, pi. 32, figs. 24-27. Whiteaves, Pal. Foss. Geol. Surv. Canada, 

 3, pt. 2, p. 63. Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 897, 

 figs. 



Camarotoechia pisa? Foerste, Jour. Cincinnati Soc. Nat. Hist., 21, 1909, p. 12, 

 pi. 2, figs. 1A, B. 



Niagaran: Highland County, Ohio; Louisville, Kentucky; Ontario (Guelph); 

 etc. 



Plesiotype: Cat. No. 51325, U.S.N.M. (Nettelroth). 



Camarotoechia plena (Hall). 



Atrypa plena Hall, Pal. New York, 1, 1847, p. 21, pi. 4 bis, fig. 7. Billings, 



Canadian Nat. Geol., 1, 1856, p. 208, figs. 17-19. Rogers, Geol. Pennsylvania, 



2, pt. 2, 1858, p. 817, fig. 592. Emmons, Amer. Geology, 1, pt. 2, 1855, p. 191, 



pi. 3, fig. 28. 

 Rhynchonella plena Hitchcock, Geol. Vermont, 1, 1862, p. 278. Chapman, 



Canadian Jour., n. s., 7, 1862, p. 114, fig. 103; 8, 1863, p. 195, fig. 164; Expos. 



Min. Geol. Canada, 1864, p. 117, fig. 103; p. 167, fig. 164. Lesley, Geol. Surv. 



Pennsylvania, Rep. P 4, 1889, p. 897, figs. Hall, 12th Rep. New York 



State Cab. Nat. Hist., 1859, pp. 65-66. Billings, Canadian Nat. Geol., 4, 



1859, p. 444, fig. 22; Geol. Canada, 1863, p. 126, fig. 50. 

 Camarotcechia plena Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 190. 



Grabau and Shimer, N. A. Index Fossils, 1, 1907, p. 284, fig. 345. Raymond, 



Ann. Carnegie Mus., 7, 1911, p. 221, pi. 33, figs. 7-18. 

 Atrypa plicif era Hall, Pal. New York, 1, 1847, p. 22, pi. 4 bis, fig. 8. Emmons, 



Amer. Geology, 1, pt. 2, 1855, p. 191, pi. 3, fig. 29. 

 Rhynchonella plicif era Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 



898, fig. 

 Atrypa altilis Hall, Pal. New York, 1, 1847, p. 23, pi. 4 bis, fig. 9. Emmons, 



Amer. Geology, 1, pt. 2, 1855, p. 192, pi. 3, fig. 30. 

 Rhynchonella altilis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 883. 



Hitchcock, Geol. Vermont, 1, 1861, p. 277, fig. 176. 

 Chazyan: Chazy, etc., New York; South Hero, Vermont (Valcour); Ottawa 



Valley, Canada (Aylmer). 



Camarotoechia pristina Raymond. 



Camarotoechia pristina Raymond, Amer. Jour. Sci., 20, 1905, p. 368; Ann. Car- 

 negie Mus., 7, 1911, p. 225, pi. 24, figs. 1-10. 

 Chazyan (Crown Point, Valcour): Valcour Island and Chazy, New York. 



Camarotoechia pyrrha (Billings). 



Rhynchonella pyrrha Billings, Cat. Sil. Foss. Anticosti, 1866, p. 44. 

 Anticostian (Gun River): East of Otter River, Anticosti. 



Camarotoechia scmiplicata (Conrad). 



Atrypa semiplicata Conrad, 5th Ann. Rep. Geol. Surv. New York, 1841, p. 56. 

 Rhynchonella semiplicata Hall, 10th Rep. New York State Cab. Nat. Hist., 1857, 



p. 65, figs. 1, 2; Pal. New York, 3, 1859, p. 224, pi. 29, figs. la-o. 

 Camarotcechia semiplicata Grabau, Michigan Geol. Surv., Geol. Ser., 1, 1909, 



p. 129, pi. 16, figs. 13, 14; pi. 20, fig. 12. 



Helderbergian (Coeymans): Schoharie and Carlisle, New York. 

 Upper Monroan (Lucas): Salt shaft, Detroit, Michigan. 



