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Batangas halgerda
Philippines · Indo Pacific - South China Sea
A firm-bodied dorid with a ridged, tuberculate back, described from the Philippines in 2000 and named after Batangas province. It belongs to the Halgerda carlsoni species complex.
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Translucent ivory-white body with low irregular ridges crossed by a network of fine, continuous orange to red-orange lines. Conical tubercles with orange-red tips and white bases; white mantle border and orange-edged foot. Rhinophores and gill translucent white with dark brown specks.
Halgerda carlsoni has discrete orange spots rather than continuous lines and grows larger; H. malesso has fused orange patches and several fine lines at the edge; H. terramtuentis has golden lines and white-capped tubercles.
Reefs, sand slopes, rocky bottoms and rubble, 2–25 m.
Sponges.
