Photo Gallery / Localities / Guatemala 
Marine Gastropodes3 families
Marine Bivalves1 families
Landsnails14 families
Freshwater Gastropodes6 families
Freshwater bivalves2 families
MEGALOSTOMATIDAE  Tomocyclus cf. siphonis Bartsch & Morrison, 1942 |  Tomocyclus guatemalensis (Pfeiffer, 1851) |  Tomocyclus simulacrum (Morelet, 1849) |  Tomocyclus simulacrum copanensis (Sowerby, 1850) | | | | |
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