Cystopelta sp. (genus)

1 Unidentified Cystopelta Slug at Acton, ACT

Cystopelta sp. (genus) at Acton, ACT - 26 Nov 2021
Cystopelta sp. (genus) at Acton, ACT - 26 Nov 2021
Cystopelta sp. (genus) at Acton, ACT - 26 Nov 2021
Cystopelta sp. (genus) at Acton, ACT - 26 Nov 2021
Cystopelta sp. (genus) at Acton, ACT - 26 Nov 2021
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Identification history

Cystopelta sp. (genus) 28 Nov 2021 Michael123
Cystopelta sp. (genus) 28 Nov 2021 TimL

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User's notes

The sequence of images shows part of the mating ritual of two Cystopelta species slugs. I understand this sighting is showing the following. Slugs are hermaphrodites, with both male and female reproductive organs. When a slug is in heat, amongst other things it releases a chemical in its slime which attracts other slugs. When slugs locate a potential mate, they will circle around each other in ever tightening circles. They circle in a clockwise direction when viewed from above, ensuring their right sides face each other as this is the side from which their genitalia appear from beneath their mantles. They stroke each other over a prolonged period and eventually exchange sperm. (See similar sighting 4397750). Thanks to Marcus Leach for the initial sighting on a tree in ANBG’s Rainforest Gully, during recent rain.

6 comments

Michael123 wrote:
   28 Nov 2021
This species may be Cystopelta septentrionalis from the north east coast of NSW that has been accidentally introduced in plant material to the gardens
Michael123 wrote:
   28 Nov 2021
the pink object inside the base of the penis might be the spermatophore
Michael123 wrote:
   28 Nov 2021
TimL These are very important images. This is the first time Cystopelta has been photographed copulating. I know several people who would be interested to see this. Would you be able to send me these images via email in a format that could be digitally saved ie as jpegs or Tiff images. Also would like to post them on Facebook credited to you. My email address is -
michael.shea@austmus.gov.au
Thanks in advance
Michael
TimL wrote:
   28 Nov 2021
Sure, @Michael123 will email higher definition versions to you. There are more in the sequence, which are available if required. Tim
TimL wrote:
   28 Nov 2021
Hi @Michael123 the images have been emailed to your address. Tim
Michael123 wrote:
   29 Nov 2021
Thanks Tim, much appreciated

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Location information

Sighting information

  • 2 Abundance
  • 26 Nov 2021 11:33 AM Recorded on
  • TimL Recorded by

Species information

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  • Confirmed by an expert moderator
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