young, 7 mm
Thuridilla carlsoni Gosliner, 1995
|Maximum size: 25 mm.
a relatively cryptic species with low parapodia that meet at
the mid-line without major folds. It may be distinguished by the
"leopard-like" pattern of green spots and peach colored marginal band
on the exterior of its parapodia as well as by the lime-green veins on the interior of its
parapodia. (Note 1)
is a common plakobranchid found on shallow rocky bottoms. It usually
protected to moderately exposed locations
at depths of 1-3 m (3-10 ft). However, David Rolla recently found one at
about 15 m (50 ft). Mature animals are diurnally active. The
is a moderately to tightly coiled, cream spiral. A
variable number of cream to pale orange longitudinal lines of
superficial pigment may be
present on the ribbon (usually visible only under
magnification). The eggs hatch in about six days in the laboratory.
Big Island, Maui, Oahu and Kauai: widely distributed in the western & central
first recorded in Hawaii from Oahu by Scott Johnson in the 1980s
and was named
naturalist Clay Carlson who first found the species in
25 mm: Hekili Point, Maui; Oct. 16, 2004.
Observations and comments:
1: Perhaps, variation in the color of the the green spots results from differences in diet or chloroplast retention?