[Figure 4]
Three further bones from the Madeiran archipelago do not match the taxa previously discussed, because of their absolute size, proportions and morphology. A femur and a tibiotarsus from Madeira and a tarsometarsus from Porto Santo are larger than the remaining material from the islands and fall within the size range of R. aquaticus, R. limicola and R. longirostris. We are unsure about their species attribution, and consequently refer them to Rallus sp.
Material: MMF 43478, R tbt, “Ribeira Groh”, Madeira, 17 / 18 Sept 1994, coll. HP; MMF 43479, R fem, “Main Sand Place”, Madeira, 1985, coll. HP. MMF 43480, L tmt, Fonte da Areia, Porto Santo, 1982, coll. HP.