upper side of larva

Back or upper part of a shark or ray's torso or disc.

Upper side or back of a caterpillar.

back or upper side of the caterpillar.

The upper, outer surface of an organ, appendage, or body part.

The upper surface; top.[1] Fin. Swe.

the upper surface of an animal

the upper surface of the insect body.

In anatomy, the dorsum is the upper side of animals that typically run, fly or swim in a horizontal position, and the back side of animals (like humans) that walk upright. In vertebrates the dorsum contains the backbone. The term dorsal refers to anatomical structures that are either situated toward or grow off that side of an animal.

the posterior part of a human (or animal) body from the neck to the end of the spine; "his back was nicely tanned"

Back or posterior side of a structure.

Refers to the back of a body part; The posterior part of a human (or animal) body from the neck to the end of the spine

The back; the back surface of any part.