The late Viennese painter Maria Lassnig painted herself as an amoeba floating inside a television screen, as a rabbit-nosed frog-like thing and as a headless being with a figure that looked like a chair. She would abstract her body — and bodies in general — in seemingly grotesque ways, but the results would somehow be charming. One painting in the current Lassnig survey at Hauser Wirth & Schimmel, called Naval Boat, is a particularly weird, virtuosic gem. Two gray legs hold up a belly and a boat-shaped torso, with a pink open mouth at top but no face. Instead of a head, Lassnig has painted a pink and purple object that really resembles a multi-blade Gillette razor.