First Australian records of Scalaronoba Powell, 1927 (Gastropoda: Aclididae?), with the description of two new species from Victoria

ABSTRACT

The marine microgastropod genus Scalaronoba Powell, 1927 (Gastropoda: Aclididae?) is recorded from Australia for the first time, with the new species Scalaronoba kryptopleurakia n. sp. and Scalaronoba arenula n. sp. described from central Victoria. Three other indeterminate Victorian specimens are illustrated and discussed. These are the first records for the genus outside New Zealand. The uncertainty of the familial placement of Scalaronoba is discussed. These species are noted as being amongst the smallest gastropods to be recorded from Victorian waters. http://www.zoobank.org/urn:lsid:zoobank.org:pub:98860E57-6EC0-4F15-93D7-34A823E41E07

KEYWORDS:

• Micromollusca
• shell-sand
• taxonomy
• temperate Australia
• Western Port

Acknowledgements

We thank Roger Curtain of the Bio 21 Institute, The University of Melbourne, for SEM access and support. Joan Clark, Zoology Department, The University of Melbourne, generated SEM images of the coated specimens NMV F.230801 and TMAG E35971. Mandy Reid (Australian Museum, Sydney), Bruce Marshall (Museum of New Zealand Te Papa Tongarewa Wellington), Chris Rowley and Melanie Mackenzie (Museum Victoria, Melbourne) and Simon Grove and Kirrily Moore (Tasmanian Museum and Art Gallery, Hobart) kindly facilitated inter-museum loans and deposition of specimens. We gratefully acknowledge Robert Burn (Victorian Branch, Malacological Society of Australasia) for guidance, comments and nomenclatural advice, Don Cram (Victorian Branch, Malacological Society of Australasia) for assistance with light microscopy measurements and Hugh MacIntosh (formerly of Museum Victoria, Melbourne) for assistance with reference material. Finally, we thank Bruce Marshall, Winston Ponder (Australian Museum, Sydney) and Don Colgan (Australian Museum, Sydney) for reviewing the manuscript and for valuable editorial advice.

Disclosure statement

No potential conflict of interest was reported by the authors.