👉 Rhodoniichthys is a genus of fish in the family Rhodonidae, commonly known as the red-billed or spiny eels. This group includes species that are typically found in freshwater habitats and have been reported from various parts of the world. They are characterized by their distinctive red coloration on their heads, bodies, and fins, which is often referred to as the "spiny" part of their body. The genus Rhodoniichthys is named