154 Marine Shells of the Western Coast of Florida 



Genus ElirLEUKA H. and A. Adams, 1853 

 Enplenra caudata sulcidentata-"" Dall PI. 31, fig. 215 



Alt., 25 mm. Shell with acute apex; spire of five or six whorls, 

 about one-third height of shell; color white, brown, frequently in 

 banded pattern, varices usually white; body whorl not proportion- 

 ately large; whorls acutely keeled; sutures distinct; sculpture of pli- 

 cate lamellar varices, one at outer lip and one immediately opposite 

 on body whorl give a flattened appearance to shell. Aperture small, 

 oval, prolonged into a straight, nearly closed, tapering canal, slightly 

 recurved backward; outer lip thickened by plicate lamellar varix. 

 Operculum corneous, clear amber color with two broad bands of 

 dark amber radiating from center of outer margin. 



From littoral zone to six fathoms. 



The animal is white with opaque mottlings, pin-point black 

 eyes placed on tentacles three-fourths of the distance from base. 



Egg capsules of Eupleura candata sulcidentata Dall PL 49, fig. 339 



Eupleiora caudata sulcidentata deposits most delicate and grace- 

 ful little capsules, well shown in the drawing. Their height is about 

 5 mm. They are deposited singly in rows or groups of three to eight 

 or ten, on dead shells below low tide mark. One individual in the 

 laboratory deposited five capsules during one night and none there- 

 after. Embryos matured in fourteen days in three capsules. Ova 

 in the remaining two egg capsules failed to develop. There are five to 

 ten ova in each capsule. Eupleura spawns from February to late 

 Spring. 



Enplenra nitida-^^i (Broderip) PL 31, fig. 216 



Alt., 17.5 mm. Color chocolate-brown with a few revolving white 

 bands, varices white; spire of five whorls, apex acute, apical whorls 

 loosely coiled, body whorl not relatively large; whorls sharply 

 shouldered; sutures distinct; longitudinal sculpture of low, round 

 ribs and two lamellar varices on body whorl; last two whorls of 



^*° Gr., eu, well; pleura, rib; Lat., cauda, tail; sulcus, furrow; dentatus, 



toothed. 

 281 Lat., nitidus, shining. 



