Extracts of the endemic nudibranch Leminda millecra collected in Algoa Bay,
South Africa, yielded four known metabolites, millecrones A (1) and B (2),
isofuranodiene (5), and (+)-8-hydroxycalamenene (9), and nine new compound
s, algoafuran (7), cubebenone (8), and a series of seven triprenylquinones
and hydroquinones (21-27). A subsequent GC-MS survey-of extracts of 21 of L
. millecra's possible octocoral prey species in Algoa Bay identified the so
ft coral Alcyonium fauri as the source of 1 and the gorgonian Leptogorgia p
alma as the species producing 2 and 8.