TYPE-SPECIMENS OF FOSSIL VERTEBRATES. 11 



4848. Elonichthys hypsilepis Hay. Reverse of type. 



Impression of fish in nodule. Upper Coal Measures. Mazon 

 Creek, Grundy County, Illinois. 



Hay, Proc. Amer. Philos. Soc. XXXIX, 1900, pp. 117, 120, pi. 7 (as 

 Elonichthys peltigerus hypsilepis). 



2180. Enchodus shumardi Leidy. Type. 



Dentary bone containing six teeth. Cretaceous. Nebraska. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1856, p. 257; Rept. U. S. Geol. 

 Surv. Terr., I, 1873, pp. 289, 347, pi. 17, fig. 20. 



2350. Eriptychius americanus Walcott. Type. 



Scales. Middle Ordovician. Near Canyon City, Colorado. 



Walcott, Bull. Geol. Soc. Amer., Ill, 1892, p. 167, pi. 4, figs. 5-1 1. 



3997. Erismatopterus endlichi Cope. Type. 



Skeleton on slab. Green River (Eocene). Twin Creek, 

 Wyoming. 



Cope, Bull. Geol. and Geogr. Surv. Terr., Ill, 1877, p. 811; Rept. 

 U. S. Geol. Surv. Terr., Ill, 1884, p. 82, pi. 12, fig. 5. 



2588. Galeocerdo sp. undet. 



Tooth. Wasatch (Eocene). Gallinas Creek, New Mexico. 



Cope, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. II, 1877, 

 pi. 22, fig. 16. 



2590. Galeocerdo pristodontus (Agassiz). Plesiotype. 



Tooth. Wasatch (Eocene). Gallinas River, New Mexico. 



Cope, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. II, 1877, 

 p. 38, pi. 22, fig. 18. 



= Corax pristodontus. 



2583. Gar sp. undet. 



Scales and opercular bones. Wasatch (Eocene). Gallinas 

 River, New Mexico. 



Cope, Rept. U. S. Geogr. Surv. W. 100th Merid., IV, Pt. II, 1877, 

 pi. 23, figs. 30, 31. 



3518. Helodus coxanus Newberry. Type. 



Symphysial teeth. Keokuk (Mississippian). Keokuk, 

 Iowa. 

 Newberry, Trans. N. Y. Acad. Sci., XVI, 1897, p. 301, pi. 24, fig. 24. 

 = Chitinodus latus. 



1682. Hemiptychodus mortoni (Mantell). See Ptychodus mortoni. 

 5461. 



1981. Holonema rugosa (Claypole). Plesiotype. 



Scale. Catskill (Devonian). Mansfield, Tioga County, 

 Pennsylvania. 



Cope, Proc. U. S. Nat. Mus., XIV, 1891, p. 456; Proc. Amer. 

 Philos. Soc, 1892, p. 223, pi. 7, fig. 2. 



1982. Holonema rugosa (Claypole). Plesiotype. 



Pectoral spine. Catskill (Devonian). Mansfield, Tioga 

 County, Pennsylvania. 



Cope, Proc. U. S. Nat. Mus., XIV, 1891, p. 456, pi. 30, fig. 7. 



