Dear colleagues, this was an Octopus from Central Java Indonesia. I wonder what are those small black dots in its outer layer of digestive gland. They are not regularly present though. Also I wonder on what the cuttle fish and squid do to expel some small fish trapped inside their mantle outside the digestive system.
Regarding the octopus from Central Java, Indonesia, and the small black dots in its outer layer of the digestive gland, here are some potential explanations:
Thank you
Thank you so much for the explanation. Sometimes the black dots were dense. Could you also assist by naming the 1 to 5 parts of the specimen please.
- Mantle: The main body of the octopus, which houses vital organs like the digestive gland, gills, and heart.
- Digestive Gland: Sometimes referred to as the hepatopancreas, responsible for digestion and nutrient absorption.
- Gills: Located inside the mantle, these are responsible for oxygen exchange.
- Ink Sac: Typically located near the siphon, used to release ink as a defense mechanism.
- Siphon (or Funnel): A tubular structure used for expelling water, waste, and for propulsion.
Thank you Mr. Wiredu, I knew those 5 principal organs in cephalopods. However, I get confused of the picture my student sent me. Perhaps you could lend your hands to correct me, please? Thanks
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