Table 1. Freshwater snails (Class Gastropoda – Cuvier, 1795) distributed by municipality, in the directly affected area by the Sao Francisco River Transposition, Ceara State, Brazil, collected from February/2015 to September/2016.

Municipalities	Water collections	Ampullariidae	Planorbidae		Physidae	Thiaridae
		Pomacea sp.	Biomphalaria sp.	Drepanotrema sp.	Physa sp.	Melanoides sp.
Aurora	Bleeder of the Cachoeiras Dam	X	21
	Passagem das Pedras Dam	X	46			X
	Cachoeiras Reservoir	X	0			X
	Mofumbo Reservoir	X	56			X
	Solidade Reservoir	X	13
	Tipi Reservoir	X	44	X	X
	Tipi de Baixo Reservoir	X	14	X
	Salgado River	X	450			X
Brejo Santo	Atalho Large Reservoir	X	0			X
	Cipo Reservoir		76
	Cana Brava Stream		0
	Pinheira Stream		4
	Porcos Stream	X	51			X
	Torroes Stream	X	42			X
Jaguaretama	Santa Barbara Dam		0			X*
	Castanhao Large Reservoir	X	48		X	X*
	Alegre Reservoir	X	78		X	X
	Genesio Bezerra Reservoir		0			X
Jaguaribara	Integration Channel (Piscinao)		150			X
	Irrigation Channel Curupati (Bridge)	X	14			X
	Irrigation Channel Curupati-Peixe	X	6		X	X
	Castanhao Large Reservoir	X	19		X	X*
	Castanhao Large Reservoir (Floodgates)	X	23		X	X
	Jaguaribe River	X	6		X
Jati	Carnaubas Reservoir	X	11			X
	Atalho Large Reservoir	X	0			X*
	Poco da Barra Stream	X	43	X	X	X
	Porcos Stream	X	70	X	X	X
Mauriti	Bom Sucesso Dam		0
	Palestina Dam	X	10	X		X
	Sao Miguel Dam		16	X
	Pastora Reservoir	X	0			X
	Quixabinha Reservoir	X	0			X*

Legend: X = occurrence; X* = large amounts.