280 BULLETIN 53, UNITED STATES NATIONAL MTTSKUM. 



II02. Discina tenuilineata Meek and Hayden. Holotype. 



Permian. Cottonwood Creek, Kansas. 



Meek and Hayden, Proc. Acad. Nat. Sci. I'hila., 1.S59, p. 25. 



= Orbietiloidea tenuilineata. 



133S7. Discina utahensis Meek. Cotype.s. 



Triassic. Weber Canyon, Wasatch Range, Utah. 



Meek, Rept. U. vS. Geol. ExpL, 40th Par., IV, Pt. I, 1S77, p. 99, 

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



109289. Discinisca lugubris (Conrad). Plesiotype. 



Miocene. Probably Nan.semond River, Virginia. 



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

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



vSee Di.scina Ingnbris. 



45214. Discinopsis gulielmi INIatthew. Plastotype. 



St. Jt^hn (Cambrian). Portland, New Brunswick. 



Hall and Clarke, Nat. Hist. New Vork, Pal. \'HI, Pt. I, 1S92, p. 

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



83659. Discohelix retifera Dall. Cotypes. 



Pliocene, (jtiadalupe Island, Wx'st Indies. 



Dall, Trans. Wagner Free Inst. JSci. Phila., HI. Pt. II, 1892, ]). 

 332, pi. 19, figs. I, lb, ic. 



158069. Discotrochus orbignianus Milne-Iulwards and Haime. 



158070. Plesiotypes. 

 Lower Claiborne (Eocene). Bienville Parish, Louisiana; 



Newton, Mi.ssi.ssippi. 



Vanghan, Mon. XXXIX, I". vS. Geol. Surv., 1900, p. 79, pi. 5, figs. 

 14-19I). 



1 15607. Ditrupa dentalinum Ouppy. Holotype. 



Oligocene. Jamaica, British West Indies. 



C.upjw, Geol. Mag., London, Dec. II. I, 1874, pi. 16, fig. it. 



1 14635. Divaricella chipolana Dall. Holotype. 



Oligocene. Alimi Bltiff, P'lorida. 



Dall, Trans. Wagner I'ree Inst. vSci. Phila., HI, Pt. \'I, 1903, p. 

 1389, ])1. 51, fig. 2. • 



157796. Divaricella compsa Dall. Holotype. 



Pliocene. Shell Creek, De vSoto County, P'lorida. 



Dall, Trans. W'aguer I'ree Inst. Sci. Pliila., Ill, Pi. \T, 1903. ]). 

 1391, pi. 51, fig. 3. 



107102. Divaricella prevaricata (Ui|)i\v. Holotype. 



Oligocene. \''endryes, Jamaica, West Indies. 



Gn])))y, Proc. F. S. Nat. Mns., XIX, 1896, ]). 327, ])1. 30, fig. 4. 



145142. Divaricella quadrisulcata (Orbigny). PlesiotNpe. 



Miocene. Petersburg, \'irginia. 



Dall, Trans. Wagner Free Inst. vSci. Pliila., Ill, PI. \'I, 1903, j). 

 13^9. pl- 5', 'iK- '• 



