GEOLOGICAL SURVEY

BOYLE.] NOR.TH AMERICAN MESOZOIC INVERTEBRATA. 225
Pecten Continued.
quadricostatus (Sow.) E o em er .
(1849.)
Texas, p. 398. Bonn, 1849. F. Roemer.
Formation: Cretaceous.
Locution: Ford near New Braunfels, Fredericksburg,
and Waco camp, Tex.
quadricostatus (Sow.) Roemer.
(1852.)
Kreide von Tex., p. 64. Bonn, 1852. F. Eoemer.
Formation: Cretaceous.
Location: Ford of the Guadalupo, Now Braunfele,
Tex.
quadricostatus (Sow.) Shumard.
(1853.)
Expl. Red river, La., by K. B. Marcy, p. 204,
pi. 3; fig. 6; pi. 2, figs. 2a, b. Wash., 1853.
B. F. Shumard.
Formation: Cretaceous.'
Location: Fort Waehita, Ind/Ter.
quadricostatus (Sow.) Credner.
(1870.)
Zeitsch. Deutsch. Geol. Ges. Band 22, p. 232.
Berlin, 1870. H. Credner.
Formation: Cretaceous.
Location: Middletown, N. J.
quadricostatus var. Eoemer. (1852.)
Kreide von Tex., p. 64, Taf. 8, figs. ia-c. Bonn,
1852. F. Roemer.
Formation: Cretaceous.
Location: Fredericksburg, Tex.
quinquecostatus (Sow.) Morton.
(1830.)
Am. Jour. Sci., let ser., vol. 18, pi. 3, fig. 5. New
Haven, 1830. S. G. Morton.
quinquecostatus (Sow.) Morton.
(1830.)
Am. Jour. Sci., 1st ser.,'vol. 17, p. 286. New
Haven, 1830. S. G. Morton.
Formation: Cretaceous.
Location: United States.
quinquecostatus (Sow.) Morton.
(1834.)
Synop. Org. Hem. Cret. Gr. U. S., p. 57, pi. 19, fig. 1.
Phila., 1834. S. G. Morton.
Formation: Cretaceous.
r quinquecostatus (Sow.) Bronn.
(1838.)
Lethaea Geognostica, Zweiter Band, pp. 678-680,
Taf. 20, fig. 17. Stuttgart, 1838. H. G. Bronn.
Formation: Cretaceous.
Location: New Jersey.
quiuquenaria n. s. Conrad. (1853.)
Jour. Acad. Nat. Sci., Phila., vol. 2, 2d ser.,1850-;
1854, p. 275, pi. 24, fig. 10. Phila., 1850-1854^
T. A. Conrad.
Formation: Cretaceous.
Location: Chesapeake and Delaware canal.
BULL. 102 15
Pecten Continued.
quinquenarius (Con.) Whitfield.
(1885.)
Mon. U. S. Gcol. Sur., vol. 9, p. 47, pi. 7, figs. 13-
16. Wash., 1885. E. P. Whitfield.
Formation: Cretaceous.
Location: G. C. Schanck'spits, Marlboro, N. J.
rhodani (Pict. &Camp.) Eicliwald.
(187U
Geog. Paleont. Bemerk. Halb. Mang. aleutischen
Inseln, pp. 135-137. St. Petersburg, 1871. E.
Eicbwald.
Format ion: Cretaceous.
Location: Alaskan peninsula.
rigida n. s. H. & M. (1854.)
Mem. Am. Acad. Arts and Sci.; n. ser., vol. 5, p.
. 381, pi. 2, figs. 4a-c. Cambridge and Boston,
1855. Hall & Meek.
Formation: Cretaceous.
Location: Sage creek, Nebr.
simplicius n. s. Conrad. (1860.)
Jour. Acad. Nat. Sci., Phila., vol. 4, 2dser., 1858-
1860, pp. 283, 284, pi. 46, fig. 44. Phila., 1858-
"1860. T. A. Conrad.
Formation: Cretaceous.
Location: Eufaula, Ala.
tenuitesta n. s. Gabb. (18G1.)
Proc. Acad. Nat. Sci., Phila., for 1861, pp. 327,
328. Phila., 1862. W. M. Gabb.
Formation: Cretaceous.
Location: Burlington and adjoining counties,
N. J.
tenuitestus (Gabb) Whitfield.
(1885.)
Mon. TJ. S. Gool. Sur., vol. 9, pp. 47, 48, pi. 7,
figs. 5,6. Wash., 1885. B. P. Whitfield.
Formation: Cretaceous.
Location: Holmdel, G. C. Schanck's pits, near
Marlboro and Burlington, N. J.
texanus n. 8. Roerner. (1852.)
Kreido von Tex., p. 65, Taf. 8, figs. 3a,b. Bonn,
1852. F. Koemer.
Formation: Cretaceous.
Location: River drift at crossing of Cibolo betweeo
New Braunfels and San Antonio, Tex.
texanus n. s. Gabb. (1861.)
Proc. Acad. Nat. Sci., Phila., for 1861, p. 366.
Phila., 1862. W. M. Gabb.
Formation: Cretaceous.
Location: New Jersey and Alabama.
traskii n. s. Gabb. (1864.)
Geol. Sur. Cal. Paleont, vol. 1, pp. 200, 201, pi.
26, figs. 186,187, a. Phila., 1864. W. M. Gabb.
Formation: Cretaceous.
Location: Texas flat, Placer county, Cal.
traskii Gabb. (1869.)
Geol. Sur. Cal. Paleont., vol. 2, p. 198, pi. 32, fig.
95. Phila., 1869. W. M. Gabb.
Formation: Cretaceous.
Location: Texas flat, Placer county, Cal., north
shore of Departure bay, near Nanaimo, Vancouver
island.