Binder

The Binders are a alien species.

Biology
The Binders are frail creatures, resembling fairies. They weigh about twenty kilos. They have a torso and limbs vaguely resembling a humanoid's, but possessing several orifices, like mouths, arranged on their iridescent derma. In addition a shimmering fleece of transparent tendrils covers their ethereal frame.

Binders are born in sets of twos, psychically joined from birth. The twins are emotionally as inseparable, making separation a traumatic and sometimes deadly outcome.

Culture
Binders are referred and designated a number.

Source

 * Stardoc (Stardoc #1) by S.L. Viehl