The largest object, apart from Neptune itself, was a disk several diameters to the left.

The pictorial keys presented apply to adult individuals only (disk diameter ).

The arms are long up to 10 times the disk diameter, covered with skin which obscures the underlying plates.

The arms are distinctly noded, short, about 3-4 times the disk diameter.

Amphilepis ingolfiana The arms are about 5-6 times the disk diameter in length.

The arms are up to 7 times the disk diameter.

The arms are short, 2-4 times the disk diameter.

The arm length is about three times the disk diameter.

The arms are about 3-5 times the disk diameter, and high slightly compressed laterally.

The arms are 3-4 times as long as the disk diameter.