Traits

Long, trailing, fluffy feathers.

Long, trailing feathers with a rounded tip.

Typical mammalian body fur.

Long, trailing fur.

Two layers of fur, for insulation in cold environments. Lots of shedding.

Fur like an Angora rabbit's, which can be cut and spun into fiber and used to make fabric.

Round, overlapping circular scales

Bumpy, raised scales of varying size and shape.

Scales with a central ridge, can be platelike or imbricate.

Cartilaginous spined fins.

Soft, ray fins.

Fins made entirely of cartilage.

Pointed or jagged crystal growths.

Round, smooth ovalline or circular crystals.

Crystals in any "cut" shape.

Sectoral heterochromia

Full heterochromia

Tongue is forked.