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Ranellidae – Cymatiinae: Monoplex (Monoplex) exaratum (Reeve, 1844) (‘ploughed rock-whelk’)
Synonym(s): exaratum Reeve, 1844.
Typical shell-length 55 mm. Lives subtidally amongst rocks and seaweed. Native. Occurs in Australia (QLD, NSW, TAS, VIC, SA, WA and NT); also widespread in the Indo-Pacific. In Tasmanian waters, this is a rare species only recorded from the E coast.
Classification
Class: Gastropoda
Subclass: Caenogastropoda – Sorbeoconcha
Order: Hypsogastropoda – Littorinimorpha
Superfamily: Tonnoidea
Family: Ranellidae
Subfamily: Cymatiinae
Genus: Monoplex
Localities for Monoplex exaratum
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/10/Monoplex-exaratum_a.jpg)
![species image](https://molluscsoftasmania.org.au/wp-content/uploads/2017/10/Monoplex-exaratum_b.jpg)
![locality map](https://molluscsoftasmania.org.au/wp-content/uploads/2017/10/Monoplex-exaratum.jpg)