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This is a list of butterflies of Guinea-Bissau. About 154 species are known from Guinea-Bissau, none of which is endemic.

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The non-marine molluscs of Senegal are a part of the molluscan fauna of Senegal.

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The non-marine molluscs of Benin are a part of the molluscan fauna of Benin.

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Aporrhais senegalensis is a species of medium-sized sea snail, a marine gastropod mollusk in the family Aporrhaidae, the pelican's foot snails or pelican's foot shells.

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Bactrocythara labiosa is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae.

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Cassis tessellata, common name : the West African helmet, is a species of large sea snail, a marine gastropod mollusk in the family Cassidae, the helmet snails and bonnet snails.

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Charonia variegata, the Atlantic triton or Atlantic triton's trumpet, is a species of predatory sea snail, a marine gastropod mollusk in the family Charoniidae, the triton snails, triton shells, or tritons.

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Clavatula muricata, common name the muricate turrid, is a species of sea snail, a marine gastropod mollusk in the family Clavatulidae.

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Clelandella miliaris is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

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Conus ambiguus, common name the doubtful cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.

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Conus genuanus, common name the garter cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.

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Damon medius is a species of arachnid of the family Phrynichidae.

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Fissurella alabastrites is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.

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Fissurella coarctata is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.

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Flabellina affinis is a species of sea slug, an aeolid nudibranch, a marine gastropod mollusk in the family Flabellinidae. It is the type species of the genus Flabellina.

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Haliotis marmorata is a species of sea snail, a marine gastropod mollusk in the family Haliotidae, the abalones.

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Hexaplex duplex is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

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Lanistes ovum is a species of freshwater snail with an operculum, an African apple snail, an aquatic gastropod mollusk in the family Ampullariidae.

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Melarhaphe neritoides, common name : the small periwinkle, is a species of small sea snail, a marine gastropod mollusc in the family Littorinidae, the winkles or periwinkles.

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Mitromorpha senegalensis is a species of sea snail, a marine gastropod mollusk in the family Mitromorphidae.

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The non-marine molluscs of Nigeria are a part of the molluscan fauna of Nigeria.

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Moths of Guinea-Bissau represent only 2 known moth species. The moths and butterflies together make up the taxonomic order Lepidoptera.

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Muricopsis rutila, common name : the beaded drupe, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

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Oliva flammulata, common name the flame olive, is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives.

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Oxymeris dillwynii is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.

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Oxymeris senegalensis, common name : the Faval Auger, is a species of sea snail, a marine gastropod mollusk in the family Terebridae, the auger snails.

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Persicula persicula, common name : the spotted marginella, is a species of very small sea snail, a marine gastropod mollusk or micromollusk in the family Cystiscidae.

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Phorcus atratus is a species of sea snail, a marine gastropod mollusk in the family Trochidae, the top snails.

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Prunum amygdalum, common name : the almond marginella, is a species of sea snail, a marine gastropod mollusk in the family Marginellidae, the margin snails.

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Siratus senegalensis is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

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Trona stercoraria, common name the rat cowry or droppings cowry, is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.

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Zonaria zonaria is a species of sea snail, a cowry, a marine gastropod mollusk in the family Cypraeidae, the cowries.