Mollusca. Systematische Uebersiclit. 7 



Proboscidifera holostomata. Fam. Scalariidae, Rad. n, 0, ii, 

 Solariidae, Rad. n, 0, n, Pyramidellidae, Rad. 0, Eulimidae, Rad. 0, 



Fig. 8. Cassis sulcosa, nacli Poll a Schale, 

 e Aiige, / Tentakcl, g Eiissel, h Fuss, i Deckel. 



b Schuabel, c Sipho, d Kojif, 



Fig. 9. Atlanta Feronii, naeh Gegenbaue, 1855. a Pharynx, b Buccalganglion, 

 c Tentakel, d Aiige, e Cerebralganglion, /Aorta cephalica, g Pleurovisceralconnectiv, h Spindel- 

 miiskel, i, k Osphradium, I Vagina, m Ctenidium, n Anus, o Uterus, p Nei^hridium, 

 q Aorta cephalica, r Vorhof, s Herzkammer, t Aorta visceralis, u Verdauungsdriise (Leber), 

 V Ovariiim, to Magen, x Pedalganglion, y Oijerculum, z ^Metapodium, 1 Saugnapf des 

 Flossenfusses (= rudinientare Kriechsohle) , 2 Fuss , S Gehororgau , 4 Oesoi)hagus, 

 5 Schnauze, 6 Speicheldriise. 



