Grego, J. & Szekeres, M. (2004). New taxa of clausiliids (Gastropoda: Pulmonata: Clausiliidae) from northern Peru. Schriften zur Malakozoologie, 21: 5‑11. Cismar.
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Grego, J. & Szekeres, M.
2004
New taxa of clausiliids (Gastropoda: Pulmonata: Clausiliidae) from northern Peru