112 NORTH AMERICAN MESOZOIC INVERTEBRATA. [BULL. 102. Cyrena Continued. (Corbicula) durkeei n. s. Meek. (1870.) Proc. Am. Philos. Soc., vol. 11, 1869-1870, p. 431- Phila., 1871. F. B. Meek. Formation: Tertiary [Cretaceous]. Location: Wyoming. (Veloritina) durkeei (Meek) White. (1875.) Bep. Geogr. and Geol. Expl. and Sur. west of One Hundredth Meridian, vol. 4, pt. 1, pp. 207, 208, pi. 21,figs. 13a, 6. Wash., 1875. C.A. White. Formation: Eocene ? [Cretaceous]. Location: Plateau near the west crossing of the north fork of Virgin river, at Pace's canon, and at the north fork of Virgin river, Utah. (Veloritina) erecta, n. a. White. (1876.) Bep. Geol. UiutaMts., p. 117. Wash., 1876. C. A. White. Formation: Cretaceous. Location: Upper Kauab, Utah, and Hilliard station, Wyoming. n. s. Hill. (1889.) Geol. Sur. Texas, Bull. No. 4, p. 14. Austin, 1889. B. T. Hill. Formation: Cretaceous. Location: Barton's creek, west of Austin, Tex. Cyrtochilu n. subgen. Meek. (1876.) Bep. U. S. Geol. Sur. Terr., vol. 9, p. 392. Wash., 1876. F. B. Meek. Cytherea [Lam.] Morton. (1834.) Synop. Org. Bern. Cret. Gr. U.S., p.67. Phila., 1834. S. G. Morton. deweyi n. B. M. & H. (1856.) Proc. Acad. Nat. Sci., Phila., for 1856, p. 83. Phila., 1857. Meek & Haydeu. Formation: Cretaceous. Location: Moreau river, Nebraska [S. Dakota]. excavata n. s. Morton. (1833.) Am. Jour. Sci., 1st ser., vol. 23, p. 292, pi. 5, fig. 1. New Haven. 1833. S. G. Mortou. Formation: [Cretaceous]. Location: New Jersey. excavata n. s. Morton. (1834.) Synop. Org. Bern. Cret. Gr. U. S., p. 67, pi. 5, lig. 1. Phila., 1834. S. G. Mortou. Formation: Cretaceous. Location: Arnoytown, N. J. leonensis n. s. Conrad. (1857.) Bep. U. S. and Mex. Bound. Sur., vol. 1, pt. 2, pi. 6, fig. 1. Wash., 1857. T. A. Conrad. Formation: Cretaceous. Location: Leon Springs, El Paso road [Texas]. missouriana n. s. Morton. (1841.) Jour. Acad. Nat.- Sci., Phila., vol. 8, let ser., 1839- 1842, p. 210, pi. 11, fig. 2. Phila., 1839-1842. S. G. Morton. Formation: Cretaceous. Location: Great bend of the Missouri river (lat. 43° 4
BOYLE.] NORTH AMERICAN MESOZOIG INVERTEBRATA. 113 Cytherina (Lam.) Conrad. (1858.) Jour. Acad. Nat. Sci., Phila., vol.3, 2d ser., 1855- 1858, p.335. Phila., 1855-1858. T.A.Conrad. tippana n. s. Conrad. (1858.) Jour. Acad. Nat. Sci., Phila., vol. 3, 2d ser., 1855- 1858, p. 335, pi. 35, fig. 31. Phila., 1855-1858. T. A. Conrad. Formation: Cretaceous. Location: Owl creek, three miles north of the town of Ripley, Miss. ? White. (1879.) Eleventh Ann. Rep. V. S. Geol. and Geogr. Sur. Terr., p. 213. Wash., 1879. C. A. White. Formation: Cretaceous. Location: Danforth hills, Colorado. Dalliconcha n. g. White. (1887.) Proc. Acad. Nat. Sci., Phila., pt. 1, for 1887, pp. 34,35. Phila., 1887. C. A. White. invaginata n. s. White. (1887.) Proc. Acad. Nat. Sci., Phila., pt. 1, for 1887, p. 35, pi. 2, figs. 4 and 5. Phila.; 1887. C. A. White. Formation: Cretaceous. Location: [Four miles north of Fort Worth], Texas. ensiformis (Conrad) White. (1887.) Proc. Acad. Nat. Sci., Phila., pt. 1, for 1887, pi. 2, fig 6. Phila., 1887. C. A. White. Daphnella? (Hinds) Conrad. (1860.) Jour. Acad. Nat. Sci., Phila., vol. 4, 2d ser., 1858- 1860, p. 285. Phila., 1858-1860. T. A. Conrad. ? eufaulensis u. s. Conrad. (1860.) Jour. Acad. Nat. Sci., Phila., vol. 4, 2deer.,1858- 1860, p. 285. Phila., 1858-1860. T. A. Conrad. Formation: Cretaceous. Location: Eufaula, Ala. ? lintea n. s. Conrad. (1860.) Jour. Acad. Nat. Sci., Phila., vol. 4, 2dser., 1858- 1860, pp. 285,286,pi. 4.6, fig. 47. Phila., 1858- 1860. T. A. Conrad. Formation: Cretaceous. Location: Eufaula, Ala. ? subfilo'sa n. s. Conrad. (1860.) Jour. Acad. Nat. Sci., Phila., vol. 4, 2d ser., 1858- 18CO, p. 285. Phila., 1858-1860. T. A. Conrad. Formation: Cretaceous. Location: Eufaula, Ala. Delphinula lapidosa n. s. Morton. (1834.) Syuop. Org. Kern. Cret. Gr. U. S., p. 46, pi. 19, fig. 7. Phila., 1834. S. G. Mortou. Formation: Cretaceous. Location: Prairie Bluff, Ala. ? Troost. (1840.) Fifth Geol. Rep., Tennessee, p. 56. Nashville, 1840. G. Troost. Formation: Cretaceous. Location: Near Purdy, McNairy county, Tennessee. Dentaliiia (d'Orb.) Gabb. (1800.) Jour. Acad. Nut. Sci., Phila., vol. 4, 2dser., 1808- 1800, p. 402. Phihi., 1858-1860. Win. M. (Jubb. BULL. 102- 8 Dentalina Conti n ued. (d'Orb.) Reuss. (1861.) Math.-Naturw. 01. Kaisorl. Altad. Wiss. Sitzungsb.,1861, Bandxliv, p.334. Wien, 1862. A. E. Reuefc americana Ehrenberg. (1851.) Mikrogeologio, Taf. 32, fig. 3. Leipzig, 1854. C. G. Ehrouberg. Formation: Cretaceous. Location: Mississippi region. colligata n. s. Reuss. (1861.) Math.-Naturw. 01. Kaiserl. Akiul. Wiss. Sitzuugsb.,1861, Band xli v, pp. 334, 335, Taf. vii, fig. 4. Wien, 18G2. A. E. Reuse. confluens n. s. Reuss. (1861.) Math.-Naturw. 01. Kaiserl. Akad. Wiss. Sitzungsb., 1861, Bandjxliv, p. 335, Tuf. vii, fig. 5. Wien, 18G2. A. E. Keues. Formation: Cretaceous. Location: New Jersey. pulchra n. s. Gabb. (1860.) Jour. Acad. Nat. Sci., Phila., vol. 4, 2d ser., 1858-1860, pp. 402,403, pi. 68, figs. 40,41. Phila., 1858-1860. Wm. M. Gabb. Formation: Cretaceous. Location: Near Mullica Hill, N. J. Dentalium [Linn.] Conrad. (1853.) Jour. Acad. Nat. Sci., Phila., vol. 2,2d ser., 1850- 1854, p. 276. Phila., 1850-1854. T. A. Conrad. cooperi n. s. Gabb. (1864.) Geol. Sur. Gal., Paleont., vol. 1, p. 130, pi. 21, fig. 100. Phila., 1864. W. M. Gabb. Formation: Cretaceous. Location: San Diego, Martinez, near Fort Tejon; Curry's, south of Mount Diablo, and in the Siskiyou mountains, California. cooperi (Gabb?) White. (1.889.) Bull. U. S. Geol. Sur., No. 51, p. 44. Wash., 1889. C. A. White. Formation: Cretaceous. Location: Sucia island. falcatum n. e. Conrad. (1869.) Am. Jour. Conch., vol. 5, Phila., 1869-1870, pp. 44,45, pi. 1, figs. 12-16. Phila., 1870. T. A. Conrad. Formation: Cretaceous. Location: Crosswicks. N. J. fragilis n. s. M. & H. 1856. Proc. Acad. Nat. Sci., Phila., for 1856, p. 69. Phila., 1857. Meek & Hayden. Formation: Cretaceous. Location: Yellowstone river, one hundred and fifty miles above mouth, Nebraska [Montaua.] gracile (H. & M.) Meek. (1876.) Rep. U. S. Geol. Sur. Terr., vol. 9, pp. 266, 267, pi. 18. fig. 13o-d. Wash.,1876. F. B. Meek. Formation: Cretaceous. Location: Yellowstoue River [Montana.] gracile (II. & M.) White. (1879.) Eleventh Auu. Rep. U. S. Geol. and Guogr. Sur. Torr., p. 18-k \Viish., 1879. C. A. White. Formation: Cretaceous. Location: Mouth of St. Vrains creek and iit the valley of the Cache & la Puudre, Colorado.