BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 381 



Dalmauella multisecta Continued. 



Dalmanella multisecta Hall and Clarke, Pal. New York, 8, pt. 1, 1892, pp. 207- 



224. Cumings, Amer. Geol., 28, 1901, p. 374. Foerste, Bull. Sci. Lab. 



Denison Univ., 14, 1909, p. 217. Bassler, Bull. Virginia Geol. Surv., 2a, 



1909, pi. 14, figs. 4-6. 

 Eden: Cincinnati, Ohio, and vicinity; Maryland; Virginia; East Tennessee; 



Albany County, New York (Indian Ladder). 



DALMANELLA PERVETA Hall and Clarke. See Pianodema subsequata and P. sub- 

 sequata perveta. 



DALMANELLA? PLICIFERA Schuchert. See Leptsena incrassata. 



Dalmanella porrecta (Sardeson). 



Orthis porrecta Sardeson, Amer. Geol., 19, 1897, p. 104, pi. 5, figs. 19-24. 

 Dalmanella testudinaria porrecta Schuchert, Bull. U. S. Geol. Surv., 87, 1897, 



p. 205. 

 Richmond (Maquoketa) : Near Granger, Minnesota. 



Dalmanella postelegantula Weller. 



Dalmanella postelegantula Weller, Geol. Surv. New Jersey, Pal., 3, 1903, p. 232, 



pi. 20, figs. 21-24. 

 Helderbergian (Decker Ferry): Two miles south of Tristates, New York. 



Dalmanella rogata (Sardeson). 



Orthis rogata Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 331, pi. 5, 



figs. 1-4; Amer. Geol., 19, 1897, p. 95, pi. 4, figs. 1-10. 

 Orthis (Dalmanella) testudinaria Hall, Pal. New York, 8, pt. 1, 1892, pi. 5B, 



figs. 27 to 31. Winchell and Schuchert, Geol. Minnesota, 3, 1893, p. 441, pi. 



33, figs. 17-22. 

 Black River and Trenton: St. Paul, etc., Minnesota; Iowa and Wisconsin. 



Dalmanella? ruida (Billings). 



Orthis ruida Billings, Cat. Sil. Fossils of Anticosti, 1866, p. 42. 

 Gamachian (Ellis Bay): Gamache Bay, Anticosti. 



Dalmanella smith! (Clarke). 



Orthis (Dalmanella) smithi Clarke, Archivos Mus. Nac. Rio de Janeiro, 10, author 's 



Eng. ed., 1900, p. 11, pi. 1, figs. 12-16. 

 Silurian: Rio Trombetas, Brazil. 



DALMANELLA STONENSIS Hall and Clarke. See Pianodema stonensis. 

 DALMANELLA SUB^QUATA Hall and Clarke. See Pianodema stibaequata. 



DALMANELLA SUBSEQUATA var. PERVETUS Ruedemann. See Pianodema subeequata 

 perveta. 



Dalmanella tersa (Sardeson). 



Orthis tersus Sardeson, Bull. Minnesota Acad. Nat. Sci., 3, 1892, p. 331, pi. 5, 



figs. 11-13; Amer. Geol., 19, 1897, p. 100, pi. 5, figs. 8-13. 

 Dalmanella tersa Schuchert, Bull. U. S. Geol. Surv., 87, 1897, p. 204. 

 Richmond (Fernvale): Wilmington, Illinois; Tennessee. 



Dalmanella testudinaria (Dalman). 



Orthis testudinaria Dalman, Kongl. Svenska Vet.-Akad. Handl., 1828, p. 115, pi. 

 2, fig. 4. Conrad, Ann. Rep. Geol. Surv. New York, 1839, p. 63. Emmons, 

 Geol. New York, Rep. 2d Dist., 1842, p. 404, fig. 4. Hall, Pal. New York, 1, 

 1847, p. 117, pi. 32, fig. 1; p. 288, pi. 79, fig. 4. Emmons, Amer. Geol., 1, 



