Split Geograpsus stormi from G. lividus based on John Starmer's advice. Simple split into new page.
No notification, but G. stormi has disappeared from G. lividus Names tab. However, the new page is nowhere to be found. Also, the Geograpsus stormi taxon name was still stuck in the Overview tab, although all G. stormi HEs are gone from the page. I was able to fix that by selecting a preferred classification. This also fixed a problem in the Overview updates, where a comment I had posted yesterday was shown as "LESS THAN A MINUTE AGO." There may be a caching problem in the overview tab after taxon concept management.
Update: A week later, search for Geograpsus stormi still leads you straight to the G. lividus page, and all the data objects attached to G. stormi show up on the G. lividus page. However, when you click on the G. stormi link on the data object pages, you get to the new G. stormi page. Now tried reindexing both pages.
A month later, the saga continues. All the G. stormi HEs are back in this concept with the G. lividus HE and the CoL HE, which I must have selected as the exemplar for the split has moved to a new concept. Now trying to move all the other G. lividus HEs over there. This seems to have worked for now. G. stormi text objects are on G. stormi page, and G. lividus images moved to G. lividus page after reindex. So everything is as it should be now. Should keep an eye on this for a month or so to make sure it's stable.
OK, this seems stable now --11 April 2013.