Dissecting Arion ater in order to determine subspecies.

• I'm not positive that I've labeled the reproductive system appropriately, I'd appreciate input.
• I have this specimen preserved in alcohol, so I can take more photos or do further dissection if it would be helpful.

Resources I used for this ID:

• GENITAL MORPHOLOGY DIFFERENTIATES THREE
  SUBSPECIES OF THE TERRESTRIAL SLUG ARION ATER
  (LINNÆUS, 1758) S.L. AND REVEALS A CONTINUUM
  OF INTERMEDIATES WITH THE INVASIVE A. VULGARIS
  MOQUIN-TANDON, 1855

• Slugs: A Guide to the Invasive and Native Fauna of California
• https://idtools.org/mollusk/index.cfm?packageID=1178&entityID=8188

• I'm not positive that I've labeled the reproductive system appropriately, I'd appreciate input. Did I miss or mislabel anything?
• I have this specimen preserved in alcohol, so I can take more photos or do further dissection if it would be helpful.

Resources I'm using to attempt to ID to subspecies:

• GENITAL MORPHOLOGY DIFFERENTIATES THREE
  SUBSPECIES OF THE TERRESTRIAL SLUG ARION ATER
  (LINNÆUS, 1758) S.L. AND REVEALS A CONTINUUM
  OF INTERMEDIATES WITH THE INVASIVE A. VULGARIS
  MOQUIN-TANDON, 1855

• Slugs: A Guide to the Invasive and Native Fauna of California
• https://idtools.org/mollusk/index.cfm?packageID=1178&entityID=8188

Anesthetized in 5% iso alcohol solution until unresponsive, euthanized in 91% iso alcohol, dissected and photographed in water. Preserved in ~80% iso alcohol after photographing.

Resources I'm using for subspecies ID:

• GENITAL MORPHOLOGY DIFFERENTIATES THREE
  SUBSPECIES OF THE TERRESTRIAL SLUG ARION ATER
  (LINNÆUS, 1758) S.L. AND REVEALS A CONTINUUM
  OF INTERMEDIATES WITH THE INVASIVE A. VULGARIS
  MOQUIN-TANDON, 1855

• Slugs: A Guide to the Invasive and Native Fauna of California
• https://idtools.org/mollusk/index.cfm?packageID=1178&entityID=8188

Anesthetized in 5% iso alcohol solution until unresponsive, euthanized in 91% iso alcohol, dissected and photographed in water. Preserved in ~80% iso alcohol after photographing.

Resources I'm using for subspecies ID:

• GENITAL MORPHOLOGY DIFFERENTIATES THREE
  SUBSPECIES OF THE TERRESTRIAL SLUG ARION ATER
  (LINNÆUS, 1758) S.L. AND REVEALS A CONTINUUM
  OF INTERMEDIATES WITH THE INVASIVE A. VULGARIS
  MOQUIN-TANDON, 1855

• Slugs: A Guide to the Invasive and Native Fauna of California
• https://idtools.org/mollusk/index.cfm?packageID=1178&entityID=8188