BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 845 



MYTILARCA Hall. Genotype: Inoceramus chemungensis Conrad. 



Mytilarca Hall, Prelim. Notice Lam., pt. 2, dec. 1869, p. 19; 23d Hep. New York 

 State Cab. Nat. Hist., 1873, pi. 14, figs. 11-13. Zittel, Handb. Pal., 2, 1881, 

 p. 43. Hall, Kep. State Geol. New York, 1884, p. 15; Pal. New York, 5, 

 pt. 1, Lam. 1, 1884, p. 14; 35th Rep. New York State Mus. Nat. Hist., 1884, 

 p. 406d. Miller, N. A. Geol. Pal., 1889, p. 493. 



Mytilarca acutirostra (Hall). 



Ambonychia acutirostra Hall, 20th Rep. New York State Cab. Hist., 1868, (ex- 

 tras, 1865), pp. 336, 381, pi. 14 (5), fig. 2; p. 384; rev. ed., 1870, p. 383, pi. 14, 

 fig. 2. Meek and Worthen, Geol. Surv. Illinois, 3, p. 356, pi. 5, figs. 8a, b, 9c. 

 Hall, 28th "Rep. New York State Mus. Nat. Hist., doc. ed., 1875, pi. 7, fig. 

 12; mus. ed., 1879, p. 171, pi. 7, fig. 12; llth Ann. Rep. Indiana Dep. Geol. 

 Nat. Hist., 1882, p. 314, pi. 27, figs. 28, 29. 



Mytilarca acutirostrum Clarke and Ruedemann. Mem, New York State Mus., 5, 

 1903, p. 48, pi. 5, figs. 11, 12. 



Niagaran: Wauwatosa, Wisconsin; Bridgeport, Illinois (Racine); Shelby, New 

 York (Guelph); Waldron, Indiana (Waldron). 



MYTILARCA EDULIFORMIS Clarke and Ruedemann. See Streptoinytilus eduliformis. 



Mytilarca foerstei Clarke and Ruedemann. 



Mytilarca niytiliformis Foerste (not Hall), Geol. Surv. Ohio Pal., 7, 1893, p. 559, 



pi. 37, figs, lla-c. 

 Mytilarca foerstei Clarke and Ruedemann, Mem. New York State Mus., 5, 1903, 



p. 49. 

 Upper Medinan (Brassfield) : Todds Fork, near Wilmington, Ohio. 



Mytilarca raytiliformis (Hall). 



Myalina mytiliformis Hall, Pal. New York, 2, 1852, p. 100, pi. 30, figs, la, b, c, d. 

 Mytilarca mytiliformis Clarke and Ruedeniann, Mem. New York State Mus., 5, 



1903, p. 49 (gen. ref.). 

 Upper Clinton: Mohawk, New York. 



MYTILARCA MYTILIFORMIS Foerste. See Mytilarca foerstei. 



Mytilarca nitida (Billings). 



Ambonychia nitida Billings, Cat. Sil. Foss. Anticosti, Geol. Surv. Canada, 1866, 



p. 50, pp. 17a-b. 



Cleionychia? nitida Ulrich, Amer. Geol., 10, 1892, p. 97 (gen. ref.). 

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



Mytilarca obliqua Weller. 



Mytilarca obliqua Weller, Geol. Surv. New Jersey Pal., 3, 1903, p. 245, pi. 22, 



fig. 8. 

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



MYTILARCA PERNOIDES Whiteaves. See Streptornytilus pernoides. 



Mytilarca sigilla Hall. 



Mytilarca sigilla Hall, 28th Rep. New York State Mus. Nat. Hist., 1875, doc. ed., 



(1877), pi. 27, fig. 10; mus. ed., 1879, p. 174, pi. 27, fig. 10; llth Ann. Rep. 



Indiana Dep. Geol. Nat. Hist., 1882, p. 316, pi. 28, fig. 10. Lesley, Geol. 



Surv. Pennsylvania, Rep. P 4, 1889, p. 473, fig. 

 Niagaran (Waldron) : Waldron, Indiana. 



