Internal embryonic brooding and development in the southern Australian micro-snail Tricolia rosea (Angas, 1867) (Vetigastropoda: Phasianellidae: Tricoliinae)Footnote^*

* Dedication: This work is dedicated to the memory of the late malacologist Robert Robertson (1934–2018), whose work on Phasianellidae inspired this study. He was aware that brooding in Tricolia rosea had been confirmed, but sadly did not live to see this publication. An overview of his life’s work is given by Mikkelsen and Bieler (Citation2018).

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