vessel, in  this  species,  is of  a pale  straw  colour,  elliptical  and deeply  sacculated,  while in  
 E .  tricolory the same vessel is violet-coloured and nearly linear. 
 The little animal for which M.  de Quatrefages has instituted his genus Amphorina3 looks  
 very like the young of this species. 
 Fig.  1, 2,  3.  Eolis Farrani,  different views. 
 4.  Spawn. 
 5.  Papillae more highly magnified.