174 C O N C H O L O G Y. 



forward call Dippers, or Sea Nuts. The 

 definition of this family I make as fol- 

 lows ; moft generally of an oval (hape, and 

 umbilicated at bottom. The mouth very 

 patulous, efpecially at the top, for it nar- 

 rows greatly downwards. The lip thin, 

 (harp, and naked, or without any border 

 or other work ; and with a fmall facing or 

 columella lip on the upper part of the 

 mouth. PI. Ill, fig. 4, 5, a Nux, or Dip- 

 per, (hewn on both fides. 



The arrangement of this family is much 

 confufed in authors, by their feeming con- 

 nexion with the two following families of 

 SemiporcellansB and Cypreae. Lifter makes 

 them a genus of Cowry, and calls it Con- 

 cha Veneris bafi umbilicat.a Grew and 

 Buonanni place it with the Snails. Rum- 

 phius, with his Cochleae Globofas ; Argen- 

 ville, Davila, and Meufchen do the fame ; 

 and, indeed, Linnaeus^s genus of Bulla is 

 of the fame complexion. 5 for it alfo in- 

 cludes the figs, turneps, &c. equally with 

 the Dippers. Gualtieri makes it a genus 

 I preceding 



