230 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



1102. Discina tenuilineata Meek and Hayden. Holotype. 



Permian. Cottonwood Creek, Kansas. 



Meek and Hayden, Proc. Acad. Nat. Sci. Phila., 1859, p. 25. 

 = Orbiculoidea tenuilineata. ' 



13387. Discina utahensis Meek. Cot}'pes. 



Triassic. Weber Canyon, Wasatch Range, Utah. 



Meek, Rept. U. S. Geol. Expl., 40th Par., IV, Pt. I, 1877, p. 99, 

 pi. 10, figs. 3, 3a (named at end of description). 



109289. Discinisca lugubris (Conrad). Plesiotype. 



Miocene. Probably Nansemond River, Virginia. 



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



p. 1534, pi. 58, fig. 13. 



See Discina lugubris. 



45214. Discinopsis gulielmi Matthew. Plastotype. 



St. John (Cambrian). Portland, New Brunswick. 



Hall and Clarke, Nat. Hist. New York, Pal. VIII, Pt. I, 1892, p. 

 105, pi. 3, figs. 21, 22. 



83659. Discohelix retifera Dall. Cotypes. 



Pliocene. Guadalupe Island, West Indies. 



Dall, Trans. Wagner Free Inst. Sci. Phila., Ill, Pt. II, 1892, p. 

 332, pi. 19, figs. 1, ib, ic. 



158069. Discotrochus orbignianus Milne-Edwards and Haime. 



158070. Plesiotypes. 

 Lower Claiborne (Eocene). Bienville Parish, Louisiana; 



Newton, Mississippi. 



Vaughan, Mon. XXXIX, U. S. Geol. Surv., 1900, p. 79, pi. 5, figs. 

 i4-i9 b - 



1 15607. Ditrupa dentalinum Guppy. Holotype. 



Oligocene. Jamaica, British West Indies. 



Cuppy, Geol. Mag., London, Dec. II, I, 1874, pi. 16, fig. 11. 



1 14635. Divaricella chipolana Dall. Holotype. 



Oligocene. Alum Bluff, Florida. 



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

 1389, pi. 51, fig. 2. 



157796. Divaricella compsa Dall. Holotype. 



Pliocene. Shell Creek, De Soto Count}', Florida. 



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

 1391, pi. 51, fig. 3. 



107 102. Divaricella prevaricata Guppy. Holotype. 



Oligocene. Yendryes, Jamaica, West Indies. 



Guppy, Proc. U. S. Nat. Mus., XIX, 1S96, p. 327, pi. 30, fig. 4. 



145142. Divaricella quadrisulcata (Orbigny ). Plesiotype. 



Miocene. Petersburg, Virginia. 



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

 1389- pl- 5L fig- I- 



