Ah the wonders of irregular publications! In this case, we have two sets of
them actually. As Geoff pointed out, Savigny's manuscript was sitting
around in the Paris Museum for a long time, probably about 10 years
before it was finally issued in the elephant folios of Description of Egypt.
Both Lamarck and Cuvier pirated the MS, one more for genera, the other
more for species (I have no idea why that happened).
However, Delle Chiaje's papers are also a mess and I do not believe
anybody has completely cleared out exactly what went on, but the story is
roughly: Every time Delle Chiaje had enough to print a sheet or so, he had
that done, and these bits were issued, more or less formally. Towards the
end of the particular effort he would collect up the accumulated pages and
issue them as a book. He did this twice, first in the 1820's and then in the
Cuvier and Lamarck issued their volumes on worms in 1816 and 1818 and
may have known about Delle Chiaje's work, but it is unlikely that they saw it.
There is little in Savigny's finally issued tome to indicate that he had
modified his MS over time. It is hardly likely that the type of Delle Chiaje's
caudata was from anywhere else than somewhere off Napoli.
<Fauchald.Kristian at NMNH.SI.EDU>
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