Seapy R.R. (2000). Species discrimination among pelagic heteropods: resolution of the Pterotrachea hippocampus — P. minuta problem. Journal of Molluscan Studies 66: 99-118
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Seapy, R. R.
2000
Species discrimination among pelagic heteropods: resolution of the <i>Pterotrachea hippocampus</i> — <i>P. minuta</i> problem