Squolan

Left side, anatomy: Top, labeling the brain and heart's locations.

The stomach is in the center of these creatures, the lungs surround it on the sides, connecting to the nose, or blowholes on the sides. The jaw is directly connected to the stomach, this allows it to easily engulf another small animal and/or form of edible vegetation, also serving as where it spits out what is left. (Bones, seeds, and etc.)

Marked with the # symbol is the Antenna, this is it's form of communication with others of its species. Two bio-chemical compounds are formed within the creature, and only react within the antenna as it warms the chemicals to a specific temperature, allowing the reaction to take place, which in turn causes two frequencies as illustrated below. These two frequencies counteract one another, resulting in silence to the ears of other living things, the true sound wave is the second one as best I could assume for illustration, only detectable by their own species.

It has three limbs, two secondary limbs, simply for the purpose of movement, and a primary limb further towards the top.

Primary Limb/top sketch: This is the inside view of what it is like. The primary limb acts as a second mouth, and only mouth, it expands only a bit, similar to the throat of a snake as it carries food towards the stomach in the main part of the body.

In the middle of the limb is an extra extension that resides inside, an extendable and retractable thorn/stinger that can paralyze, and also used to hook/stab into whatever small prey it grabs, then retracting as the prey is moved to the stomach.

Center image: Front view; This creature performs it's aquatic movement by spiraling it's three limbs around each other, clockwise and counter clockwise, winding and unwinding in each direction. To breath underwater, it has micro pores on the fins, unlike other aquatic creatures which use gills.

Right side: Standard standing view.

The nose or blow holes are located below each eye on the side of the head.

They generally are not aggressive unless provoked, or they are hunting for small prey.

Standard size for these creatures: N/A (I've yet to decide, but they are neither giant sized, nor small as compared to a standard human)

It maintains its form without a skeletal structure in the same manner as a shark does, thick cartilage