The adipose fin is present and can have a relatively long base in some species.

When present, the adipose fin usually has a spine at the forward edge.

Like other members of their order, hammerjaws also possess a small adipose fin.

It is a long slender species with a small terminal mouth, and an adipose fin.

The fins are short and the adipose fin is entirely absent.

The adipose fin is very dark grey with a hyaline margin.

However, they lack the adipose fins on trout species.

Pangasiids have a compressed body, and a small adipose fin.

Most of these fish have no adipose fin, and some also lack pelvic fins.

It has a small terminal mouth, and an adipose fin may or may not be present.

As with all salmonids, they have an adipose fin.

Most species have a very small adipose fin.

Also, this species lacks long cheek odontodes and the adipose fin.

They also have a relatively long adipose fin.

Like Pacific salmon they have an "adipose fin"; it is sickle-shaped.

The African butter catfish possesses a compressed body and very small adipose fin.

The pelvic fins are elongated, and there may be an adipose fin.

A small adipose fin is also present.

The adipose fin is usually very long.

Most of these fish have four pairs of barbels and a large adipose fin.

Gravel Chubs are soft ray-finned fish and have no adipose fin.

Cetopsines lack an adipose fin, while it may be present (though small) in Helogeneinae.

The light-colored edge of the adipose fin is the best characteristic to distinguish it from similar species.

Propimelodus species have a rather long adipose fin.

These fish are relatively slender, spiny Loricariids that lack an adipose fin.