TYPE SPECIMENS OF INVERTEBRATE FOSSILS. 463 



17945. Orthis umbraculum Schlotheim ? Plesiotype. 



Upper Carboniferous. Near mouth of Keg Creek, Iowa. 

 Owen, Rept. Geol. Surv. Wis., Iowa, and Minn., 1852, pi. 5, fig. 11. 

 = Orthotetes robusta- 



15077. Orthis umbraculum von Buch? Plesiotype. 



Upper Carboniferous. Leavenworth, Kansas. 



Hall, Stansbury's Expl. and Surv. Valley Great Salt Lake, Utah, 

 1852, p. 412, pi. 3, fig. 6. 



= Orthotetes cymbula. 



1010. Orthisina crassa Meek and Hayden. Cotypes. 



Upper Carboniferous. Leavenworth City, Kansas. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila. , for 1858, p. 261. 



= Orthotetes crassus. 

 See Hemipronites crassus. 



15359. Orthisina festinata Billings. Plesiotype. 



Lower Cambrian. Two miles east of Highgate Springs, 

 Vermont. 



Walcott, Bull. No. 30, U. S. Geol. Surv., 18S6, p. 120, pi. 7, figs. 

 7— 7b; Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 613, pi. 

 72, figs. 7~7b. 



= Nisusia festinata. 



15361. Orthisina ? transversa Walcott. Cotypes. 



Lower Cambrian. Parker's Quarry, Georgia, Vermont. 



Walcott, Bull. No. 30, U. S. Geol. Surv., 1886, p. 121, pi. 7, figs. 

 5, 5a; Tenth Ann. Rept. U. S. Geol. Surv., 1890, p. 613, pi. 

 72, figs. 9, 9a. 



= Nisusia festinata transversa. 



14986. Orthoceras aciculoides Clarke. Holotype. 



Naples (Dev.). Cashaqua Creek, Livingston Count v, New 

 York. 

 Clarke, Bull. No. 16, U. S. Geol. Surv., 1885, p. 51, pi. 2, fig. 11. 



14989. Orthoceras asmodeus Clarke. Holotype. 



Genesee (Dev.). Bristol, New York. 



Clarke, Bull. No. 16, U. S. Geol. Surv., 1885, p. 30, pi. 3, fig. 3. 



12516. Orthoceras blakei Gabb? Plesiotypes. 



Upper Triassic. Ridge above Cottonwood Canyon, West 

 Humboldt Range, Nevada. 



Meek, Rept. U. S. Geol. Expl. 40th Par., IV, Pt. I, 1877, p. 104, 

 pi. 10, fig. 11. 



17392. Orthoceras (Camaroceras) colon White. Holotype. 



Middle Ordovician. Fish Spring, House Range, Utah. 



White, Prelim. Rept. U. S. Geogr. Surv. W. 100th Merid., 1874, 

 p. 10 (as O. colon); Rept. U. S. Geogr. Surv. W. 100th 

 Merid., IV, Pt. I, 1877, p. 56, pi. 3, figs. 5a-5d. 



