During breeding season, small tubercles will be observed on the body of the male.

The outside of the claws bear small blue tubercles.

The skin is fairly smooth with small tubercles which are often multi-keeled.

The body is covered in an extensive ornamentation of small tubercles.

This ammonite has only a few strong ribs, with a number of small tubercles in addition.

The skin on their dorsal side is covered in small tubercles.

The female either lacks a horn or has a small median tubercle.

However, the male does develop small tubercles behind the gills during breeding.

There are smaller, secondary tubercles at the edge of the plates.

Otherwise, the dermal surface is covered in very small tubercles.