48 
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308 : 
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SG ‘: 
Bug. Duval del. 
HELIX TRIGONOSTOMA,v INTERMEDIA. 
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Nolbica. fab J 
TRIGONOSTOMA,~ STOLLIANA. 
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: vy FREY TAGIANA. 
ALTISPIRA. 
TRIGONOSTOMA vy STOLLIANA, anim. 
Cambridge Engraving Company. 
