How do fish taste?

Most fish taste in what we would call a normal way that is, they have taste buds, the organs which detect flavours, in and around their mouths. But there are some fish, in particular those that live in very dark or muddy waters, which do not feed by sight, as they cannot see their mouth area, but also on other parts of their body, so that they can taste their food without actually having to swallow it fish!