GEOLOGICAL SURVEY

100 NORTH AMERICAN MESOZOIC INVERTEBRATA. [BULL. 102.
Corbula Continued.
(Azara) engelmanni n. s. Meek.
(1870.)
Proc. Am. Philos. Soc., vol. 11,1869-1870, p. 431.
Phila., 1871. F. B. Meek. .
Formation: Tertiary [Cretaceous].
Location: Limestone hill, Bear river [Wyoming].
(Azara) pyriformis n. s. Meek.
(1870.)
Proc. Am. Philos. Soc., vol. 11,1869-1870, p. 431.
Phila., 1871. F. B. Meek.
Formation: Tertiary [Cretaceous].
Location: Limestone hill, Bear river.
(Azara) pyriformis var. concentrica
n. var. Meek. (1870.)
Proc. Am. Philos. Soc., vol. 11, 1869-1870, p. 431.
Phila., 1871. F. B. Meek.
Formation: Tertiary [Cretaceous].
Location: Limestone hill, Bear river.
(Pachyodon) mactriformis (M. &
H.) Meek. (1876.)
Bep. U. S. Geol. Stir. Terr., vol. 9, pp. 628, 529,
pi. 43, figs. 7a-/. Wash., 1876. F. B. Meek.
Formation: Lower Eocene ? [Cretaceous].
Location. Fort Clark, [N.] Dakota, on the Upper
Missouri.
(Pachyodon) perundata (M. &H.)
Meek. (1876.)
Bep. U. S. Geol. Sur. Terr., vol. 9, pp. 530, 531, pi.
40, figs. Ja-d. Wash., 1876. F. B. Meek.
Formation: Cretaceous ?
Location: Mouth of Judith river, Montana.
(Pachyodon) subtrigonalis (M. &
H.) Meek. (1876.)
Eep.U.S.Geol.Sur.Terr., vol. 9, pp. 529,530, pi.
40, figs. 3a, 6. Wash., 1876. P. B. Meek,
Formation: Cretaceous ?
Location: Mouth of Judith river, Montana.
(Potamomya?) conceiitrica n. B.
Meek. (1860.)
Proc. Acad. Nat. Sci., Phila., for 1860, p. 313.
Phila., 1861. F. B. Meek.
Formation: Tertiary [Cretaceous].
Location: Bear river, lat. 40° 12' north, long. 110°
52' west.
(Potamomya?) engelmanni n. s.
Meek. (1860.)
Proc. Acad. Nat. Sci., Phila., for 1860, p. 313.
Phila., 1861. F. B. Meek.
Formation: Tertiary [Cretaceous],
Location: Bear river, lat. 40° 12'north, long. 110°
62' west.
(Potamomya?) pyriformis n. s.
Meek. (1860.)
Proc. Acad. Nat. Sci., Phila., for 1860, pp. 312,313.
Phila., 1861. F. B. Meek.
Formation: Tertiary [Cretaceous].
Location: Bear river, lat. 40° 12' north, long. 110°
02' west.
Corbula Continued.
n. s. Hill. (1889.)
Geol. Sur., Texas, Bull. No. 4, p. 16. Austin, 1889.
E. T. Hill.
Formation: Cretaceous.
Location: Gillespie county, Texas.
sp. undet. Owen. (1860.)
Second Hep. Geol. Bee., Arkansas, pi. 8, fig. 1.
Phila., 1860. D.D.Owen.
Formation: Cretaceous.
Location: Arkansas.
sp. undet. Meek. (1877.")
Bep. Geol. Bxpl., Fortieth Parallel, vol. 4, pt. 1,
pp. 150,151, pi. 14, fig. 2. Wash., 1877. F. B.
Meek.
Formation: Cretaceous.
Location: Coalvillo, Utah.
Corbulamella n. g. M. & H. (1857.)
Proc. Acad. Nat. Sci., Phila., for 1857, pp. 142,143.
Phila., 1858. Meek &*Hayden.
gregaria M. & H. (1857.)
Proc. Acad. Nat. Sci., Phila., for 1857, p. 143.
Phila., 1858. Meek & Hay den.
Formation: Cretaceous.
Yellowstone river, Nebraska [Montana].
gregaria (M. & H.) Meek. (1876.)
Bep. U. S. Geol. Sur. Terr., vol. 9, p. 247, pi. 17,
figs. ISa-d. Wash., 1876. F. B. Meek.
Formation: Cretaceous.
Location. On the Yellowstone river, Montana.
gregaria (M. & H.) Whiteaves.
(1885.)
Geol. and Nat. Hist. Sur. Can., Cont. Can., Paleont.,
vol. 1, pt. 1, p. 80. Montreal, 1885. J.F.
Whiteaves.
Formation: Cretaceous.
Location: West flank of West Butte, Montana,
in the Sweet Grass hills, near the international
boundary line.
Cordiera (Renault). Gabb. (1864.)
Geol. Sur. Cal., Paleont., vol. 1, ;p. 93. Phila.,
1864. W. M. Gabb.
microptygma n. s. Gabb. (1864.)
Geol. Sur. Cal., Paleont., vol. 1, pp. 93,94, pi. 28,
fig. 203. Phila., 1864. W. M. Gabb.
Formation: Cretaceous.
Location: Near Fort Tejon, California.
mitraeformis n. s. Gabb. (1869.)
Geol. Sur. Cal., Paleont., vol. 2, pp. 153,154, pi.
26, fig. 32. Phila., 1869. .W. M. Gabb.
Formation: Cretaceous.
Location: Colusa county, near the Hot Sulphur
springs, California.
Corimya (Agassiz) Whitfield. (1885.)
Mon. U. S. Geol. Sur., vol. 9, p. 170. Wash.,
1885. B. P. Whitfield.
tenuis n. s. Whitfield. (1885.)
Mon. U. S. Geol. Sur., vol. 9, pp. 170,171, pi, 23,
figs. 9-11. Wash., 1885. B. P. Whitfield.
Formation: Cretaceous.
Location: Upper Freehold and Marshallville,
N. J.