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Richling, I. (2001). New species of Helicinidae from Costa Rica (Mollusca: Neritopsina). Schriften zur Malakozoologie. 17: 1-8.
Richling, I. (2001). New species of Helicinidae from Costa Rica (Mollusca: Neritopsina). Schriften zur Malakozoologie. 17: 1-8.