DISCRIMINATION OF 2 DENDRONOTUS SPECIES BY ALLOZYME ELECTROPHORESIS AND THE REINSTATEMENT OF DENDRONOTUS-LACTEUS (THOMPSON, 1840) (NUDIBRANCHIA, DENDRONOTOIDEA)

Whitish and brownish specimens of what has commonly been identified as Dendronotus frondosus (Ascanius, 1774) from the fjord Gullmaren on th e Swedish west coast are shown by allozyme electrophoresis to be genet ically isolated from each other, and are thus considered to represent two separate species. The brownish specimens are regarded nominally as representing D. frondosus. Dendrontus lacteus (Thompson: 1840) is rei nstated for the whitish specimens, and the species is redescribed. (C) 1998 The Norwegian Academy of Science and Letters.