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USA (contiguous states); Réunion; Puerto Rico; Philippines; Panama; Oceania - Inland waters; Nicaragua; Neotropical; Mexico; Japan; Honduras; Hawaii (USA); Guatemala; El Salvador; Costa Rica; Central America: Pacific slope, from Río Sucio, El Salvador to Río Suchiate, Guatemala; Atlantic slope, from Río Patuca, Honduras to Río Jutiapa, Guatemala. Not in slope to Panama, Costa Rica or even Nicaragua, as formerly considered. Introduced elsewh; Canada; Australian; Australia; Asia - Inland waters; Africa-Inland Waters; America, North - Inland waters
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