World Register of Marine Species (WoRMS)
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Pizzini M. & Raines B., 2006. Caecum maori, new name for Caecum solitarium Oliver, 1915 (non Meyer, 1886) (Caenogastropoda: Rissooidea Gray J.E., 1847). Bollettino Malacologico, 42 (1-4): 13-14