Yes, back to the code:
 
ICZN Article 53 (c) Homonyms in the species group - "Two or more available
species-group names having the same spelling are homonyms if they were
originally established in combination with the same generic name (primary
homonymy), or if they were subsequently published in combination with the
same generic name (secondary homonymy)."
 
ICZN Article 57 (c)(i) Secondary homonyms - "Identical species-group names
established for different nominal taxa and brought together in combination
with the same generic name are secondary homonyms [Art. 53c above], and the
junior is invalid..."
 
The junior homonym is the one later established, and will be rejected. A
valid replacement name for the species could be the oldest available
synonym, if available. In case the "rejected junior synonym has no
available synonym, it must be replaced by a new replacement name (nomen
novum), with its own author and date..." [Article 60(c)]. It happens very
often.
 
 
At 10:55 AM 6/4/98 -0400, you wrote:
>I don't know if this has ever actually occurred, but just as a matter
>of curiosity - what would happen, taxonomically speaking, if two
>species in separate genera had the same specific name, and it was
>later determined that they belonged in the same genus?
>Paul M.
>
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Jose H. Leal, Ph.D.
Director, The Bailey-Matthews Shell Museum
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