Catalogue of Organisms

Metarhaucus lojanus , from Roewer (1912). This was a bit of an unfair ID challenge , I'll admit. The most distinctive feature of the ...

Attribution to follow. Update : Identity now available here . Figure from Roewer (1912).

I can't really award anyone the prize for identifying yesterday's image ; identifying it as a "dinoflagellate" doesn't...

Another ID challenge as a preview for tomorrow's post. I know at least one of my regular readers will be able to get this easily if she ...

The points for this one go to Kai, who successfully identified this as a flightless hemerobiid lacewing: Psectra diptera , from MacLachlan (...

Yes, the ID challenge today is an actual insect, for once. And, as a clue to identity, consider first the point that it only has a single pa...

A little over a week ago, I got an e-mail from Paul Selden saying that he was on a trip to China and had discovered that Catalogue of Organ...