Shell #6: Turbonilla ?macouni (from Abbott 1974)?
"Shell #6 looks a lot like a Turbonilla tridentata (Carpenter, 1864) specimen
that I have in my collection. Mine was collected in fairly shallow water in Monterey Bay. The sculpture
looks very similar but the aperture is more acute in the pictured specimen than mine (perhaps it wasn't
done maturing the lip)"(- Tom Lawson)