Untitled

PLATE 26
FIGURES 1-2. Calliostoma nottowayense Gardner, n. sp. (p. 186).
1. Apertural view of holotype (U. S. Nat. Mus. 325466), from the Yorktown formation at Sycamore, Nottoway River,
Southampton County, Va.; height 9.3 millimeters; diameter 11.1 millimeters. X 4.
2. Basal view of holotype. X 4.
FIGURES 3- 4. Calliostoma carolinense Gardner, n. sp. (p. 184).
3. Basal view of holoLype (U. S. Nat. Mus. 325472, from the Yorktown formation at Hamilton Bluff, Roanoke River, Martin
County, N. C.; height 9.8 millimeters; diameter 11.2 millimeters. X 4.
4. Apertural view of holotype. X 4.
FIGURE 5. Calliostoma conradi Gardner, n. sp. (p. 186). Basal view of holotype (U.S. Nat. Mus. 325468), from Yorktown formation
at Yorktown, Va.; height 9.8 millimeLers; diameter 11.9 millimeters. X 3.
FIGURE 6. Calliosloma armillatum (Tuomey and Holmes) (p. 186). Apertural view of specimen (U. S. Nat. Mus. 113060), from
near the Katural Well, Duplin County, N. C.; height 6.2 millimeters; diameter 8.8 millimeters. X 4.
FIGURES 7-8. Calliostoma cyclum Dall (p. 186).
7. Apertural view of holotype (U.S. Nat. Mus. 113062), from the Natural Well, Duplin County, N.C.; height 3.6. millimeters;
diameter 5.2 millimeters. X 7. (After Dall.)
8. Basal view of holotype. X 7. (After Dall.)
FIGURE 9. Calliostoma conmdi Gardner, n. sp. (p. 186). Apertural view of holotype shown in figure 5. X 3.
FIGURE 10. Calliostoma labrosum (Conrad) (p. 185). Apertural view of topotype (U. S. Nat. Mus. 113050), from the James River,
Va.; height 7.3 millimeters; diameter 9.3 millimeters. X 4.
FIGURE 11. Calliostoma basicwn Dall (p. 184). Apertural view of holotype (U.S. Nat. Mus. 113022), from the Yorktown formation
at Petersburg, Va.; height 15.4 millimeters, diameter 14.5 millimeters. X 2.
FIGURE 12. Calliostoma virginicum (Conrad) (p. 185). Apertural view of specimen (U. S. Nat. Mus. 113036), from Yorktown, Va.;
height 12.8 millimeters; diameter 13.2 millimeters. X 3. (After Dall.)
FIGURES 13-14. Callios.toma hertjordense Gardner, n. sp. (p. 185).
13. Apertural view of holotype (U.S. Nat. Mus. 325469), from Yorktown formation, l)lz miles above Murfreesboro, Hertford
County, N. C.; height 7.3 millimeters; diameter 8.8 millimeters. X 4.
14. Basal view of holotype. X 4.
FIGURE 15. Calliostoma philanthropum pontoni Mansfield (p. 184). Apertural view of holotype (U.S. Nat. Mus. 370482), from the
Choctawhatchee formation at Harveys Creek, half a mile above abandoned mill, Leon County, Fla.; height 17 millimeters;
diameter 17 millimeters. X 2. (After Mansfield.)
FIGURES 16- 17. Calliostoma virginicum gizehi Gardner, n. subsp. (p. 185).
16. Apertural view of holotype (U. S. Nat. Mus. 325467), from Yorktown formation, zone 2, at Yorktown, Va.; height 9.2
millimeters; diameter 10.5 millimeters. X 3)1z.
17. Basal view of holotype. X 3}f.
FIGURE 18. Calliostoma ruffinii (H. C. Lea) (p. 184). Apertural view of holotype (Acad. Nat. Sci. Philadelphia 1548), from the
Yorktown formation at Petersburg, Va. X 4.
FIGURE 19. Calliostoma milchelli (Conrad) (p. 184). Apertural view of holotype (Acad. Nat. Sci. Philadelphia), from James River,
Va. X 2.
FIGURES 20- 21. Calliostoma cheopsi Gardner, n. sp. (p. 183).
20. Basal view of holotype (U. S. Nat. Mus. 325470), from the Yorktown formation, 8 to 9 miles southeast of Greenville,
Pitt County, N. C.; height 11.1 millimeters; diameter 10.0 millimeters. X 4.
21. Apertural view of holotype. X 4.
FIGURE 22. Calliostoma harrisii Dall (p. 186). Apertural view of holotype (U. S. Nat. Mus. 113052), from Bellefield, near Yorktown,
Va.; height 10.4 millimeters; diameter 11.6 millimeters. X 3)1z. (After Dall.)
FIGURE 23. Calliostoma mitchelli (Conrad) (p. 184). Basal view of holotype shown in figure 19. X 2.
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