<d _at_ timocharis.com> David North adds:
Given that it wasn't Rima Hevelius I or II (both extend to the south from Hevelius; I to the east and II to the west -- but both as straight lines) there is an arcing feature to the east of Lohrmann that seems to be a rille or something like it, the easternmost part of which is catenoid (and would probably be the most easily seen of all the listed features). It's big enough to almost be a valley, and the craters making up the eastern portion should be pretty visible. I have no idea why this would remain unnamed, save that it is not clearly either a rille or a valley, and may have confused those concerned with nomenclature.
|Chart 27||Moon-Lite Atlas for chart 28||Chart 29|