WEAKFISH (Cynoscion regalis), an important North Ameri can f ood-fish, so-called from its tender mouth. It inhabits sandy shores of the Atlantic coast from Cape Cod to Florida and is greenish-brown above, silvery below, with brown markings. The weakfish is also known as squeteague and sea-trout (its trade name). It reaches a weight of 30 lb. (average 5 lb.).