Real photoREAL PHOTO Ecological IllustrationECOLOGICAL ILLUSTRATION ← Back to catalog Generate card Ariidae Thomas sea catfish Notarius grandicassis Mouthbroods during May June TropicalEstuarySouthern HemisphereRegional distributionSouth AmericaElongatedLargeTropical fish Thomas sea catfish is a freshwater fish from South America. It inhabits estuaries and brackish water. Records give a maximum length of 63 cm. ClassTeleosts OrderCatfishes FamilyAriidae GenusNotarius Body shapeelongated