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HIPPONICIDAE 165
% to % inch in length, moderately stout, without an umbilicus, and
similar to E. angulatum, except that the 7 to 8 costae per whorl are thinner,
more highly developed and usually quite angular. Moderately common from
low water to 120 fathoms. Alias muricata Sby., spina-rosae Morch and pretiosula
Morch.
Subgenus Gyroscala Boury 1887
Epitonium lamellosum Lamarck Lamellose Wentletrap
South half of Florida and the Caribbean. Also Europe.
Plate 2 23
% to I % inches in length, without an umbilicus. 1 1 whorls whitish with
irregular, brownish markings. Costae thin, high, always white. Characterized
by a fairly strong, raised, spiral thread on the base of the shell. Moderately
common from low water to 33 fathoms. Ahas E. clathrmn of authors, not
Linne.
Epitonium rupicola Kurtz Brown-banded Wentletrap
Cape Cod, Massachusetts, to Florida and to Texas.
Plate 2 2e
/4 to I inch in length, moderately stout to slender, and without an um-
bilicus. Color whitish or yellowish with 2 brownish, spiral bands on each
side of the suture. Color often diffused. About 1 1 globose whorls, each of
which has from 12 to 18 weak or strong costae. Former, thickened varices
sometimes present. Base of shell with a single, fine, spiral thread. Formerly
known as lineatum Say and reynoldsi Sby. Common from low water to
about 20 fathoms.
Epitonium indianorum Carpenter Money Wentletrap
Forrester Island, Alaska, to Lower California.
I inch in length, slender, pure white, of 1 1 whorls, each of which has
13 to 14 sharp costae which are slightly bent backwards. The tops of the
costae are slightly pointed. Fairly common offshore.
Superfamily HIPPONICACEA
Family HIPPONICIDAE
Genus Cheilea Modeer 1793
Cheilea equestris Linne False Cup-and-saucer
Southeast Florida and the West Indies.
Plate 2ip