Our work reaffirms the non-identity of samoquasine A with 1, in agreement with the Taiwanese observation. Pertinently, the original Japanese workers have published in the meantime a brief statement (in 'Additions and Corrections' of a journal) 10 that they identified samoquasine A as perlolidine (4) and, therefore, withdrew this trivial name samoquasine A. This identity remains highly doubtful to us particularly on the following grounds: (a) samoquasine A was ...