Hexaradial Symmetry seems to be the rule for Elnaran fauna. With the exception of microbes, all animal forms have the same six-pointed starlike body plan. The main differences in outward form stem from the degree of ribbing between the vertebral extremities.
- The Elnarans, although they appear roughly humanoid, are actually hexaradial in symmetry, with alternating extremities gradually elevating and becoming more gracile during childhood,thus developing into more arm-like limbs. The remaining three limbs continue to function as legs, becoming appropriately sturdier.
- Each limb terminates in six finger-like extensions that function as fingers and toes. The Elnaran hand is vastly more dextrous than any human's, in that the fingers are able to flex fully in any direction and are equally opposable to all other fingers. Each finger can individually grip as gently or as forcefully as a Terran Boa Constrictor. This arrangement allows for both extremely precise manipulation of objects and a powerful basket-like grip.
- The Elnaran head rests upon a "neck" composed of six cervical columns, surrounding the trachea and vital blood vessels. Although slightly less flexible than the human neck and almost incapable of rotation, these movements are not needed as their arrangement of six eyes allows for continuous stereoscopic vision in 360 degrees and allows for triscopic focus in any single direction. This visual arrangement is common to all of the polyvertebrates.
- Mooms are somewhat like Earth's Sea Urchins in superficial appearance because their radiating extremities are extensively ribbed along nearly the entire length and curve inward at the base, forming a small opening for ingestion.
- Yiffle extremities are long and flexible to facilitate advanced gliding. Proximal ribbing creates an aerodynamically tapered disk that graduates to a medial membrane and then to individual "fingers" for grasping and arboreal locomotion.
- Shlaan extremities are finger-like, extending from the central skull, with only vestigial ribs.
- Dhul-va extremities are unribbed and composed of flexible, cartilaginous blades that are fully webbed with elastic webbing, enabling them to fully flatten out and rapidly draw their limbs together. This motion creates a water jet that propels them in a manner reminiscent of Earth's Sea Scallops and Medusans.
- A sessile form of Dhul-va (larval?) is found in shallow pools and are commonly kept as pets in bowls in almost every household. They very closely resemble translucent, soft-sided, spineless sea urchins. They possess 6 rudimentary eyes around their base, that sense light and shadows. They range in size from 0.1 mm to roughly 10 cm in diameter.
