Invasion

Invasion Description

1st record: New Orleans vicinity/LA/Gulf of Mexico (Type Locality, Rafinesque 1820, Say 1822)

Ischadium recurvum (Hooked Mussel) was first described by Rafinesque (as Mytilus recurvus) in 1820, from the Mississippi River near New Orleans (Johnson 1915). Say in 1822 gave it (as Mytilus hamatus) a similar distribution: 'Inhabits the Gulf of Mexico, frequently carried to New Orleans attached to the common oyster' (Say 1858). I. recurvum was described by Rafinesque in 1820 and by Say 1822 (Say 1858); both in the vicinity of New Orleans. Its range was later given as Texas to Florida and south to Costa Rica (Dall 1889).

Geographic Extent

Veracruz/Mexico/Chica-Grande lagoon system, Gulf of Mexico (García-Cubas et al. 1992); Galveston/Gulf of Mexico (ANSP 61063, Academy of Natural Sciences of Philadelphia 2007); TX/Galveston Bay (ANSP 55692, Academy of Natural Sciences of Philadelphia 2007); New Orleans vicinity/LA/Gulf of Mexico (Type Locality, Rafinesque 1820, Say 1822); Biloxi/MS/Gulf of Mexico (ANSP 182834, Academy of Natural Sciences of Philadelphia 2007); St. Petersburg/FL/Tampa Bay (ANSP 76653, Academy of Natural Sciences of Philadelphia 2007)