The specific epithet mammosus, Latin adjective meaning 'full breasted' or 'having breast-shaped protruberances', refers to the shape, in profile, of the thoracic neuropodial postsetal lobes.
Mackie, Andrew S. Y. 1987. A review of species currently assigned to the genus Leitoscoloplos Day, 1977 (Polychaeta: Orbiniidae), with descriptions of species newly referred to Scoloplos Blainville, 1828. Sarsia, 72: 1-28. (look up in IMIS)