Invasion

Invasion Description

st Record: North Kingstown/RI/Pettaquamscutt River (Horton 1959, URI MS Thesis Fofonoff, personal observations (1975-1980)

Geographic Extent

North Kingstown/RI/Pettaquamscutt River (Horton 1959, URI MS Thesis Fofonoff, personal observations (1975-1980) Brayton Point (Somerset/MA/Taunton River)