Sawfish
Sawfish are primarily found in coastal marine and estuarine brackish waters, but they are euryhaline (can adapt to various salinities) and also found in freshwater. The largetooth sawfish, alternatively called the freshwater sawfish, has the greatest affinity for freshwater. For example, it has been reported as far as up the Amazon River and in Lake Nicaragua, and its young spend the first years of their life in freshwater. In contrast, the smalltooth, green and dwarf sawfish typically avoid pure freshwater, but may occasionally move far up rivers, especially during periods when there is an increased salinity. There are reports of narrow sawfish seen far upriver, but these need confirmation and may involve misidentifications of other species of sawfish.
Shovelnose sea catfish
The shovelnose sea catfish (Arius subrostratus), also called the short-nosed catfish or the marine catfish, is a species of sea catfish in the family Ariidae. It was described by Achille Valenciennes in 1840. It is a non-migratory species which inhabits tropical marine and brackish waters in the Indo-western Pacific region, including Indonesia, India, Pakistan, the Philippines and Thailand. It dwells at a depth range of . It reaches a maximum NG length of , while commonly reaching a total length of .