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GALLERY



 
Hermaea
sp. #1
 
Hermaea sp. #1
Maximum size:  7 mm.

Identification:  This is a nearly transparent animal flecked with cream and light brown. Olive-brown branches of the digestive gland show through the cerata. There is usually a red-brown patch behind the eye spots on the left side of the head and the rhinophores have tapered tips.

Natural history:  Hermaea sp. #1 is a moderately common species found at protected to moderately exposed rocky sites and in Halimeda kanaloana beds at depths of < 1 to 11 m (< 3 to 36 ft). It is most numerous in protected, back-reef habitats where it can be found, often in large numbers, in patches of a small, plumose red alga (Wrangelia dumontii). We've observed it feeding on that alga in dishes. It shows a diurnal activity pattern when held and lays a white, arc-shaped egg mass (usually on its host alga). The eggs hatch in about three days in the laboratory.

Distribution:  Maui, Kauai and Midway.

Taxonomic notes:  This animal is listed as "Stiliger sp. 7" in Gosliner, et. al., 2008. It was first recorded in Hawaii from Hekili Point, Maui by CP on Aug. 3, 1991.

Photo:  CP: 4 mm: Mala Wharf, Maui; Dec, 9, 2004.

Observations and comments:

Note 1:  ( )
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