Acanthosepion pharaonis Cuttlefish Reproduction

Shown here is a female Pharoah cuttlefish (Acanthosepion pharaonis) ejecting white strands from her siphon just prior to depositing an egg. Previous strands of this material are visible on the substrate. This white substance is the gelatinous material this female produces in her nidamental gland to envelope eggs. Females sometimes eject this material while preparing eggs. The male is watching over her to ensure rival males do not approach. Photographed in Kagoshima Prefecture, Japan.

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Filename: acanthosepion-pharaonis-cuttlefish-mating-japan-202306-3356.tif
Copyright: Copyright Tony Wu. All rights reserved. No duplication, reproduction or usage without prior written permission.
Image Size: 7576x5051 / 113.3MB; https://www.photoshelter.com/support/license#rm; https://www.tony-wu.com/contact-tony-wu; Cephalopod Cuttlefish Animalia Mollusca Cephalopoda Sepiida Sepiidae Acanthosepion pharaonis Pharaoh Cuttlefish Torafu-koika Reproduction Mating Pacific Japan Kagoshima Prefecture
Contained in galleries: Marine Life Reproduction, Cephalopods, Marine Life | Japan

Shown here is a female Pharoah cuttlefish (Acanthosepion pharaonis) ejecting white strands from her siphon just prior to depositing an egg. Previous strands of this material are visible on the substrate. This white substance is the gelatinous material this female produces in her nidamental gland to envelope eggs. Females sometimes eject this material while preparing eggs. The male is watching over her to ensure rival males do not approach. Photographed in Kagoshima Prefecture, Japan.