Brown Bubble Shell, Marine, Presence of spiral striations around base
References and Publications
Morley, M.S., Hayward, B.W. 2015 Intertidal records of 'sea slugs' (nudibranchs and allied opisthobranch gastropods) from northern North Island, New Zealand, Records of the Auckland Institute and Museum, 50 (p.57)
Malaquias, M.A.E., Reid, D.G. 2008 Systematic revision of the living species of Bullidae (Mollusca: Gastropoda: Cephalaspidea), with a molecular phylogenetic analysis, Zoological Journal of the Linnean Society, 153(3) (p.524)
Powell, A.W.B. 1979New Zealand Mollusca: Marine, Land and Freshwater Shells, Collins, Auckland (p.275)
Willan, R.C. 1978 The nomenclature of three Pacific Bulla species, Journal of the Malacological Society of Australia, 4(1) (p.58)
Key to Geographical Ranges
The symbols K.A.C.F.M.An. are used to indicate the geographical range of the species.
They have been adopted to give an approximation of the range of each species within New Zealand.
Aupourian - Kaipara Harbour, north around North Cape, encompassing the Three Kings Islands and south to East Cape
Cookian - Lower North Island and the northern part of the South Island