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178 Afjierican Seashells
Trivia maltbiana Schwengel and McGinty Maltbie's Trivia
North Carolina to Florida and the Caribbean.
Plate 2IZ
/4 to /4 inch in length, globose, slightly flattened above, and characterized
by its pale tannish pink, translucent color, by its fine riblets, and by
having 24 to 28 ribs crossing the outer lip. Areas between the ribs are micro-
scopically granular. Nuclear whorls visible through the last whorl. The dor-
sal groove is slight and the riblets nearly cross it. Moderately common just
offshore to 50 fathoms.
Trivia quadripiinctata Gray Four-spotted Trivia
Southeast Florida, Yucatan and the West Indies.
% to Yk inch in length, very similar to siiffiisa, but smaller, brighter pink,
and with 2 to 4 very small, dark red-brown dots on the center line of the
back. Riblets very fine, 19 to 24 crossing the outer lip. A very common
species frequently found on beaches with the color dots worn away and the
pink background rather faded. The riblets on the back are never pustulose
as they tend to be in suffusa, nor is there any fine color speckling.
Trivia antillarinn Schilder Antillean Trivia
Southeast Florida and the Antilles.
% to /4 inch in length, characterized by its deep reddish or brownish
purple color. Elongate-globular in shape. Riblets smooth. With or without
a faint dorsal groove over which the riblets usually cross. Outer lip with 1
to 22 teeth. Dredged from 30 to 100 fathoms and rarely cast upon the beach.
Formerly T. subrostrata Gray.
Trivia candidula Gaskoin Little White Trivia
North Carolina to southeast Florida to Barbados.
8
Plate 2 ICC
Vs, to ^ inch in length, characterized by its fairly globular shape, pure-
white color, somewhat rostrate ends and by the smooth riblets that pass over
the back. There is no dorsal furrow. Many specimens have only a few
rather strong riblets of which 1 7 cross the inside of the outer lip. Another
common form has more riblets (20 to 24 over the outer lip). It has been
named leucosphaera Schilder {globosa of authors, not Gray). The forms
intergrade. Trivia nix is also white, but is larger, more globose and with a
strong dorsal groove interrupting the ribs.