Black Water Dive® - Official website

This larva of a Blanket Octopus was taken at Omi Island Yamaguchi Prefecture Japan. Omi Island is located in the Sea of ​​Japan coast of Yamaguchi Prefecture. This larva of mantle length was about 4mm. Mantle is translucent, brachial membrane envelops head and arms. Ciliary process are lined to Mantle. Lateral view Among the larvae of the arm, dorsal arms is the most developed and the other arm is quite short. Dorsal arms has very large suckers. Sucker is gradually to bigger from the tip, and the largest sucker is fourth from the tip. Web of arms is not yet developed. Chromatophores present on inner edge of each sucker, and absent on funnel. Orange large iridophores are arranged around the eyes. Dorsal view Mantle typically triangular in shape. Dorsal mantle scattered with chromatophores. ventral view Large eyes are facing the ventral. Ventral mantle patterned with a band of yellow from red chromatophores along anterior margin. ...

Amphitretus pelagicus is very unique an Octopus. Body is gelatinous and translucent, it's like a jellyfish. This is pelagic species of open waters. Habitat is from near surface depths to at least 2,000 m. This individual was found in -5m at Osezaki Shizuoka Japan on 27th November 2014. Osezaki is a part to coast of Suruga Bay. This individual size is about 100mm ML. Dorsal view of Amphitretus pelagicus Many chromatophores are on inner body, and small chromatophores are on web. Lateral view of Amphitretus pelagicus Eyes like a periscope, it's to the dorsal side. Arms and web of Amphitretus pelagicus Suckers is one row at proximally and two rows at near the tips. Upside-down pose of Amphitretus pelagicus Arms can enclose the head. Perhaps, it's for defense. REFERENCES: Amphitretus - Tree of Life Web Project Jereb,P., Roper,C.F.E.,Norman,M.D.,Julian,K.F., 2014.  Cephalopods of the World. An annotated and illustrated catalogue of ...