TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 257 



107379. Eunaticina caractacus Dall. Holotype. 



Oligocene. Oak Grove, Florida. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. V, 1900, pi. 

 42, fig. 6. 



45810. Euomphalopterus alatus obsoletus Uirich. Holotype. 



Niagara (Sil.). Near Waldron, Indiana. 



Uirich, Geol. and Nat. Hist. Surv. Minn., Final Rept., Ill, Pt. 

 II, 1897, p. 934, figs. 5g-5i. 



13933. Euomphalus eurekensis Walcott. Cotypes. 



Middle Devonian. Eureka District, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 185, pi. 16, figs. 

 2, 2a. 



142 18. Euomphalus laxus White. Plesiotype. 



Waverly (Miss. ) . Dry Canyon, Oquirrh Mountains, Utah. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. 

 II, 1877, p. 260, pi. 4, figs. 24, 25. 



= Euomphalus luxus. 



13936. Euomphalus (Phanerotinus) laxus (Hall). Plesiotype. 



Upper Devonian. The Gate, near Eureka, Nevada. 



Walcott, Mon. VIII, U. S. Geol. Surv., 1884, p. 186, pi. 6, fig. 3. 

 = Eccyliomphalus laxus. 



8531. Euomphalus luxus White. Cotypes. 



Lower Carboniferous. Below Orphir City, Utah. 



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

 p. 94, pi. 5, figs. 13a, 13b. 



See Euomphalus laxus. 



9825. Euomphalus michleranus Hall. Holotype. 



Middle Ordovician. Locality not given. Probably from 

 near El Paso, Texas. 



Hall, Rept. U. S. Mexican Bound. Surv., Emory, I, Pt. II, 1857, 

 pi. 20, fig. 4 (see p. 103). 



= Maclurea michleranus. 



14219. Euomphalus ( Straparollus) ophirensis Hall and Whitfield. 



Cotypes. 

 Waverly (Miss. ). Dry Canyon, Oquirrh Mountains, Utah. 



Hall and Whitfield, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. II, 

 1877, p. 261, pi. 4, fig. 26. 



8490. Euomphalus pernodosus (Meek and Worthen). Plesiotype. 

 Upper Carboniferous. Mesa, Carrizo River, Arizona. 



White, U. S. Geogr. Surv. W. 100th Merid., IV, Pt. I, 1877, p. 158, 

 pi. 12, fig. 2b. 



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