Additionally, there is a distinct ridge on the posterior surface of each dorsal eminence.

This inner surface also has faint but distinct vertical ridges, known as plications.

Unlike its relatives, the area of the tibia that fits with the fibula has a distinct ridge at the back.

The shell is domed, with three distinct ridges down the length.

It has distinct ridges above the eyes, which run down the snout.

Stob Bàn's conical shape is formed by three distinct ridges.

The major culprit is the keeled slug, dark grey or black with a distinct ridge down its back, which lives mostly in the soil.

The doctor took an accurate design of these mountains, which form four distinct ridges almost in a straight line, the northernmost being the longest.

The nuts have a thick, rough shell bearing distinct, sharp ridges.

Their carapace is distinguished by three distinct ridges, or keels which run its length.