She only appears in of the radio series, where she was voiced by.
Arthur, having never been to Stavromula Beta, has no idea what Agrajag is talking about, and Agrajag realises that he's brought Arthur to the cathedral too early.
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He has a fine sales patter and a dry sense of humour.
He appeared under that name in the original radio series and the first printings of the 1979 novelization Pan Books, paperback, page 53.
The line is followed up in the novel Mostly Harmless and the radio series , the 2005 radio series adaptation of this book.
The frog was named after the character Majikthise to reference this species' "vividly coloured thighs and groin.