68 



however, it is closely allied. Lamarck termed it 

 Capsa, appropriating the term which Bruguiere had 

 given to a genus for the reception of Venus deflorata 

 of Gmelin, and transferred that shell to his genus 

 Sanguinolaria. Ferrusac has since given the pre- 

 sent genus the name of JDonacina, but I presume 

 that which I have adopted has priority. 



IPHIGENIA L^VIGATA. 

 Tab. XVII, /^. 1. 



SPECIFIC CHARACTER. 



Shell oblongo-trigonal, convex, inequilateral ; with 

 minute radiating striae ; posterior side shortest, com- 

 pressed ; lateral margins flattened ; beaks prominent, 

 violaceous ; epidermis pale olivaceous ; within bluish 

 white. 



SYNONYMES. 



Iphigenia laevigata, Schum. Essai (Tun noveau 



Syst.p. 156. 

 DoNAx L-EViGATA, Gmel. 

 Capsa l^vigata Lam. ^n. sans vert. vol. 5, p. 553. 



