young, 5 mm
Notarchus indicus Schweigger, 1820
|Maximum size: about 38 mm.
sea hare has fine papillae, some with white tips. The prominence of the
papillae may increase with age and vary with the amount of water in the
mantle cavity. The body is
translucent cream to red-brown with darker spots. The parapodia are
fused except for an anterior aperture.
is a moderately common species found in rocky habitats and Halimeda kanaloana beds at depths
of < 1 to 110 m (< 3 to 328 ft). When disturbed, it swims
via "jet propulsion" by forcefully expelling water from its mantle
cavity through the anterior aperture. A 25 mm animal laid a tangled,
orange-brown egg string that hatched in about eight days in the
Big Island, Maui, Oahu, Kauai, Midway and Kure: widely distributed in
It was first recorded in Hawaii from off Hale'iwa, Oahu by Terry
Gary Williams in Oct. 1973 (dredged).
about 25 mm: found by PF; Airport Beach, Maui; March 22, 2003.
Observations and comments:
1: ( )