BIBLIOGRAPHIC LIST OF GENERA AND SPECIES. 845 



MYTILARCA Hall. Genotype: Inocerarnus cheinungensis Conrad. 



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

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

 p. 43.— Hall, Rep. 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; 11th 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 Streptomytilus cduliforrnis. 



Mytilarca foerstei Clarke and Ruedemann. 



Mytilarca mytiliformis 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 mytiliformis (Hall). 



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

 Mytilarca mytiliformis Clarke and Ruedemann, 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. Foes. Anticosli, 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. 215, pi. 22, 



fig. 8. 

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



Mytilarca pernoides Whitcaves. See Streptomytilus 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; 11th 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. 



