“…The enclosure of the ME in S. murinus is a thin, inflated covering of connective tissue with a bassinetshaped framework, resembling that of monotremes [Novacek, 1977] and other insectivores [Novacek, 1977]. While detailed information concerning the ME and AT musculature of man [Graves and Edwards, 1944;Proctor, 1973;Williams et al, 1989], rat [Hebel and Stromberg, 1976;Albiin et al 1983] and rhesus monkey [Doyle and Rood, 1979] is available, these muscles are poorly known in S. murinus. For research workers, an understanding of the structural and functional relationships of this musculature is essential.…”