— 11 — 



Achatlim Lamck. contiii. 



Gray 1840. in Turt. Man. ed. 2* p. 190. genus He- 



licinorum. — — *). 

 Synon. Buccinum terrestre (pars) Lister. 

 Buccinum fluviatile (pars) Gualt. 

 Turbo iluviatilis (pars) Gualt. 

 Tuba phonurgica (spec.) Klein. 

 Oxystrombus (spec.) Klein. 

 Pseudotrochus (spec.) Klein. 

 Urceus (spec.) Klein. 



Bulla (spec.) Linn. Chemn. Born. Gmel. Dillw. 

 Buccinum (spec.) MuU. Schrot. Adams. Mont. 

 Hebx (spec.) Schrot. Gmclin. 

 Stroml)us (spec.) Gmelin. 

 Bubmus (spec.) Brug. Perry. Hartm. 

 Chersina Humphrey. 

 Ampulla (pars) Bolten. 

 Plotia (pars) Bolten. 

 Achatinus Montf. 

 Liguus Montf. 

 Columna Perry. Schum. 

 Pythia (pars) Oken olim. 

 Lymnaea (spec.) Roissy. Lamck. 

 Cochlitoma Feruss. Rang. 

 Cochlicopa (spec.) Ferussac. 



2) Ab Achatinis separanda videntur genera Glandina Schum., 



Acicula Risso et Tornatellina Beck. 



Subgenera Subulina, Cionella, Azeca et Achalinella Bulimo 

 injungantur. 

 Leptinaria a Toruatellina vix dilTerre videtur. 



Hisce finibus constricto g-eneri haec definilio competere videtur: 

 Animal (teste Blainv.) Bulinio simile, collari tamen medio fisso, 



musculo columellari antice proluberanle , quo columellae 



testac truncalura efficitur. 

 Testa ovala vel oblonga imperforata. Apertura integra lon- 



gitudinalis marginibus iuaequalibus. Cblumella truncata 



introrsum volula, aperta. Labrum acutum nunquam relle.xum. 



Labium subuullum. 



