MONOGRAPHIA 
AURICULACEORUM VIVENTIUM. 
Entroeducetio. 
Auriculaceorum nomine designatur familia Molluscorum 
acrem per organa pulmonibus analoga Spirantium, operculo 
organico destitutorum ( Coelopnoorum " gymnostomor um Menke), 
sequentibus characteribus a reliquis Pulmonatorum familiis 
disünguenda: 
Animal hermaphroditum; caput terminatum in appendicem 
obtusam, sublobatam; tentacula 2 subcylindrica, non retracti- 
lia; oculi sessiles prope basin internam tentaculorum; pallium 
tenue, margine incrassato ; pes elongatus, partem spiralem, 
viscera continentem, in medio gerens. Operculum nullum. 
Testa spirata, forma summopere varia, columella fere sem- 
per plicata, pariete aperturali plerumque dentato vel plicato, 
peristomate acuto, recto vel expanso, saepe incrassato, dentato 
vel transverse costato. 
Auriculacées Lam. 1809 ex parte. 
Carychiadae Leach 1818. 
Auriculae Férussac 1821, Rang, Poliez et Michaud, D'Orbigny. 
Auriculacea Blainville 1824, .Menke, Deshayes, Anton, L. Pfeiffer, 
G. B. Sow., Reeve, Küsler, Callom, Herrmannsen, Tro- 
schel, Jay, 4. Adams et Reeve, Philippi, Poey. 
Limnocochlides sect. prior. Latreille 1824, Berthold. 
"Auriculadae Gray 1824, Thompson. 
Auriculides Risso 1826. 
Auriculaceae Menke 1828, Hinds. 
Auriculoidea De Cristofori et Jan. 1832, Fitzinger. 
"Auriculidea Beck 1837. 
"uriculidae Grayf1840, Cantraine, d'Orbigny, C. B. 4dams, Moórch, 
Forbes et Hanley. 
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