the L240 is thought to be another Leproacanthicus galaxias type plec but from venezuela. 9.4" in size, carnivore, likes meat- bloodworm, prawns etc aswell as veggies. they like caves a lot/bogwood so they have somewhere dark to hide. dunno about price, but they are nice fish. they have smaller spots than your average galaxy.
L75-Peckoltia sabaji grows slightly bigger 9.8-10" and are good looking plecs. they need the same care really as the other, make sure for either they have some good water flow, theyll be happy for it. they are both a bit reclusive. dunno what a white spot plec would be... theres so many? that got a scientific name or l number?