Traits

Overlapping, round scales

Bumpy, raised scales of varying size and shape

Scales with a central ridge, can be platelike or imbricate

Dermal growth similar to scales. Vary in size, from small bumps to prominent ridges.

Bony deposits that form plates or scales from the dermis. They may vary in size and shape, and grow anywhere on the body.

Long, bony projections from the skeleton itself. They may come in any shape or grow from any direction.

Can grow anywhere on the body, and come in any shape or size, zip or unzipped, from downy, to flight, to display feathers, to oily, water repellant feathers. 

Can grow anywhere on the body, at any length and type, such as wiry, downy, oily, etc.

Perhaps the most naturally diverse and versatile filament, hair can grow anywhere on the body, and to any length, and come in any hair type from 1a-4c, from dry, coarse, or oily and water repellant. Hair can be tied, braided, shaved, or otherwise styled any way a Nocmyr wants.

Simple, spined fins

Ray fins

Cartilaginous fins