424 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



38101. Mylacris ovalis Scudder. Cotypes. 



Upper Coal Measures. Catmelton, Pennsylvania. 



Scudder, Mem. Boston Soc. Nat. Hist., Ill, 1884, p. 308, pi. 27, 

 fig. 5; Foss. Insects N. America, I, 1890, p. 272, pi. 13, fig. 5. 



38102. Mylacris pennsylvanica Scudder. Cotypes. 



Upper Coal Measures. Cannelton, Penns}dvania. 



Scudder, Mem. Boston Soc. Nat. Hist., Ill, 1884, p. 302, pi. 27, 

 fig. 11; Foss. Insects N. America, I, 1890, p. 266, pi. 13, fig. 11. 



38055. Mylacris priscovolans Scudder. Cotypes. 



Upper Coal Measures. Cannelton, Pennsylvania. 



Scudder, Mem. Boston Soc. Nat. Hist., Ill, 1884, p. 307, pi. 27,' 

 fig. 9; Foss. Insects N. America, I, 1890, p. 271, pi.' 13, fig. 9. 



23042. Myoconcha americana Stanton. Holotype. 



Knoxville (Dower Cret.). Near Stephenson, Tehama 

 County, California. 



Stanton, Bull. No. 133, U. S. Geol. Surv., 1895 (Feb., 1896), 

 p. 48, pi. 2, figs. 11. 



8586. Myophoria ambilineata White. Holotype. 



Jurassic. Camp Cottonwood, Old Mormon Road, Nevada. 



White, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, I, 1876, 

 p. 166, pi. 13, figs. 5a, b. 



135714. Myrtaea (Eulopia) furcata Dall. Holotype. 



Bow den (Oligocene). Bowdeu, Jamaica. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, I903, p. 

 1359- pl- 52, fig. 13- 



157637. Myrtaea limoniana Dall. Holotype. 



Bowden (Oligocene). Bowden, Jamaica. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, p. 



1358, pl. 52, fig. 10. 



135717. Myrtaea (Eulopia) vermiculata Dall. Holotype. 



Bowden (Oligocene). Bowden, Jamaica. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. VI, 1903, p. 



1359. pl- 52, fig- 5- 



1 1 1596. Mysia parilis Conrad. Plesiotype. 



1 1 1609. Miocene. Bridgeton, New Jersey. 



Whitfield, Mon. XXIV, U. S. Geol. Surv., 1894, p. 61, pl. 9, 

 figs. 10-13. 



13886. Mytilarca chemungensis (Conrad). . Plesiotype. 



Upper Devonian. The Gate, near Eureka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 168, pl. 4, fig. 9. 



13885. Mytilarca dubia Walcott. Cot5 T pe. 



Middle Devonian. Done Mountain, near Eureka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 16S, pl. 4, fig. 5. 



