[Ebook] The New Guide to Aquarium Fish – Brackish Water Fishes – Shark Catfishes
Most people regard catfishes as purely freshwater fishes but there are marine and brackish water species as well. Imported under the names Arms seemani and Ariusjordani, they are collectively known in the trade as the shark catfishes, and have been a regular, if somewhat seasonal, import over the last twelve years or so. Their common name probably derives from their vague resemblance to sharks when they are swimming.