Polarasterias Rousseau & Gale gen. nov.

urn:lsid:zoobank.org:act: 6A46CC92-9366-4DCB-94B5-7313D76EB0A1

Type species

Polarasterias janusensis Rousseau & Gale gen. et sp. nov., by original designation.

Diagnosis

Asteriid with elongated arms, small disc, very broad ambulacral grooves with narrow adambulacrals and weakly developed or absent actinals. Abactinals cruciform, numerous, forming a rectilinear grid arranged in regular transverse rows of seven or more plates on each side of the arm. Tube feet strongly quadriserial.

Etymology

To emphasize the polar situation of the locality and with reference to the North Star Polaris.