young, 3 mm
Noumeaella rehderi Marcus, 1965
|Maximum size: 11 mm (Kay,
species has a mottled cream to mottled brown body with slender
cerata. (Note 1) The rhinophores have long,
closely spaced papillae on their posterior edges.
is a common (though rarely seen) nocturnal species found in highly
protected to exposed rocky habitats from the low intertidal to depths
of 6 m (20 ft). However, it's most common at about 1 m (3 ft) at
protected sites. It's rare in Halimeda
kanaloana beds at depths up to 15 m (48 ft). It lays a white,
spiral egg mass that hatches in about three days in the laboratory. (Note 2)
Big Island, Maui, Oahu, Kauai and Midway: widely distributed in the Indo-Pacific; also in eastern Pacific.
species is listed as Noumeaella
cf. rehderi in Kay, 1979 and Gosliner, 1979. It
was first recorded in Hawaii from Keauhou Bay, Big Island by Terry
Gosliner on Sept. 3, 1973.
Photo: CP: 4
mm; Hekili Point, Maui; March 23, 2007.
Observations and comments:
1: We've observed light and dark
animals copulating with each other in dishes.
Although they are probably most active at night, they frequently remain
in the open during the day, particularly in shaded locations.