712 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



Leptsena richmondensis Continued. 



Strophomena tenuistriata Safford, Geol. Tennessee, 1869, p. 275, fig. 2. 



Strophomena rhomboidalis Meek, Pal. Ohio, 1, 1873, p. 75, pi. 5, fig. 6. Miller, 

 Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 1. 



Strophomena tenuistriata Miller, Cincinnati Quart. Jour. Sci., 2, 1875, p. 55. 

 Hall, 2d Ann. Rep. New York State Geol., 1883, pi. 38, figs. 12-16. Lesley, 

 Geol. Surv. Pennsylvania, Rep. P 4, 1890, p. 1134, figs. 



Lepteena rhomboidalis Cumings, 32d Ann. Rep. Dep. Geol. and Nat. Res. Indiana, 



1908, p. 909, pi. 34, figs. 5-5d. 



Lepteena richmondensis Foerste, Bull. Sci. Lab. Denison Univ., 14, 1909, p. 211, 



pi. 4, figs. lOa, b; ibid., 17, 1912, p. 117, pi. 1, figs. 6a-c. 

 Richmond: Ohio, Indiana, Kentucky, and Tennessee. 



Leptaena richmondensis precursor Foerste. 



Leptsena richmondensis precursor Foerste, Bull. Sci. Lab. Denison Univ., 14, 



1909, p. 211, pi. 4, fig. 11; Ohio Nat., 12, 1912, p. 453, pi. 22, fig. 7. 

 Richmond (Arnheim) : Arnheim and other localities in Ohio and Kentucky. 



LEPT^SNA RUGOSA James. See Plectambonites rugoea. 

 LEPT.ENA SAXEA Sardeson. See Plectambonites saxea. 

 LEPT^NA SERICEA Sowerby. See Plectambonites sericeus. 

 LEPTSENA SERICEA var. RUGOSA Meek. See Plectambonites rugosa. 

 LEPT^ENA SORDIDA Billings. See Leptella sordida. 



Leptsena(?) stelzneri Kayser. 



Leptaena stelzneri Kayser, Palseontographica, Suppl., 3, 1876, p. 21, pi. 3, fig. 21. 



Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 241. 

 Ordovician: Guaco, Argentina. 



LEFLENA STRIATA Hall. See Strophonella striata. 

 LEPT^INA SUBPLANA Hall. See Schuchertella subplana. 

 LEPT^JNA SUBQUADRATA Hall. See Christiania subquadrata. 

 LEPXSJNA SUBTENTA Hall. See Strophomena plannmbona subtenta. 

 LEPTAENA SUBTENTA (part) Hall. See Strophomena trentonensis. 

 LEPTJSNA SULCATA Vemeuil. See Strophomena sulcata. 

 LEPT^BNA TENUILINEATA Hall. See Rafinesquina tenuiiineata. 



Leptsena tenuistriata Sowerby. 



Leptsena tenuistriata Sowerby in Murchison'a Sil. Syst., 2, 1839, p. 636, pi. 22, 

 fig. 2a. Foerste, Bull. Sci. Lab. Denison Univ., 16, 1910, p. 45, pi. 5, fig. 9. 

 Caradoc sandstone: Montgomeryshire, England. 

 Trenton (Hermitage): Clifton, Tennessee. 



LEPTAENA TENUISTRIATA Hall. See Leptsena richmondensis. 

 LEPTAENA TRANSVERSALIS Hall. See Plectambonites trans versalis. 



LEPTAENA TRANSVERSALIS var. ALABAMENSIS Foerste. See Plectambonites transver- 

 salis alabamensis. 



