👉 Leptomydas is a type of fish that belongs to the family Mydidae, which are known for their distinctive appearance and ability to swim in water with little or no movement. They are often referred to as "the fish with no fins" due to their unique shape and lack of limbs. Leptomydas is characterized by their large, round body and long, slender tails that can be used for swimming or other aquatic activities.