Favorinus sp. #1
|Maximum size: 14 mm.
This species is very similar to Favorinus japonicus. However, it
has slenderer and smoother cerata that
have violet subapical spots.
Favorinus sp. #1 is a moderately
common species found in moderately exposed to exposed rocky habitats
and Halimeda kanaloana beds
at depths of 4-9 m (13-30 ft). Like F.
japonicus, it feeds on
the eggs of other opisthobranchs and we observed one feeding on a
cephalaspidean egg mass that was laid in a holding dish. It lays a
white, spiral egg mass composed of a narrow ribbon that hatches in
four days in the laboratory.
There is some possibility that this species may turn out to be a color
form of F. japonicus. It was
first recorded in Hawaii from Airport Beach, Maui by CP on Sept 12,
4 mm: Mala Wharf, Maui; May 2, 2006.
Observations and comments:
1: ( )