— 14 



Zeichenerklärung. 



a = After. 



au = Auge. 



bl = Blutrinne. 



bc = Buccalganglion. 



cer = Cerebralganglion. 



d = Darm. 



fs = Fufs. 



h = Herz. 



k =; Kieme. 



1 = Leber. 



mh ^= Mantelhöhle. 



ml = Mantel. 



mö = Mantelhöhlenöft'nung. 



mp =1 Metapodium. 



mu = Mund. 



oe = Ösophagus. 



op = Operculum. 



ot = Otocyste. 



ped = Pedalganglion. 



r = Rüssel. 



rm = Rüsselmuskulatur. 



rn = Rüsselnerv. 



sehn = Schnauzenteil. 



sm = Scheinmantel. 



t = Tentakel. 



