Hallaxa iju Gosliner & Johnson, 1994
|Maximum size: 5 mm.
plump, soft-bodied dorid with compact gills. The rhinophores
are mottled in brown and white. There are two color forms: violet-brown
with few to no white flecks and cream with numerous white flecks. The white flecks are on minute papillae.
Hallaxa iju is a
moderately rare species known from seven animals, four cream and three
brown. It has been found in moderately protected to exposed rocky
habitats, as well as Halimeda
kanaloana beds, at depths of 4-8 m (13-26 ft). Both of the
animals found in Halimeda
were brown. A cream, spiral egg mass 4 mm in diameter was found on
algae in a holding dish containing a cream, 4 mm animal.
Maui and Pearl & Hermes Reef: widely distributed in the western & central Pacific.
that the two color forms might be different
species. (Note 1) It was first recorded in Hawaii from Kapalua Bay, Maui by CP
on July 1, 1996.
3.2 mm; cream: Five Graves, Maui; Aug. 13, 2002.
Observations and comments:
1: Animals from the western and
central Pacific vary from light to dark brown with a variable number of
white flecks. Both background color and the number of white flecks
appear to intergrade through the range of variation. In contrast, both
and French Polynesian animals fall into the two discrete forms
described above without obvious intergrading. Perhaps, this indicates
that the lineage has split in the eastern part of the province?