178 Afjierican Seashells 



Trivia maltbiana Schwengel and McGinty Maltbie's Trivia 



Plate 2IZ 



North Carolina to Florida and the Caribbean. 



/4 to /4 inch in length, globose, slightly flattened above, and character- 

 ized 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 8 

 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 



Plate 2 ICC 



North Carolina to southeast Florida to Barbados. 



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. 



