This is official site of Black Water Dive® produced by photographer Ryo Minemizu. Black Water Dive® is a kind of night diving. We are setting up underwater lights of high-color rendering on the sea bottom of night that while considering tides, times, places. The creature which appears is mainly juveniles and larvae. All is fascinating, and it's not to be seen at daytime or regular night diving. It will be your first experience. This site will introduce the state of the event and the creatures seen and also future of BWD schedules. *"BWD"stands for Black Water Dive®.*Black Water Dive® is a registered trademark of Ryo Minemizu.
ラベル ソデイカ の投稿を表示しています。 すべての投稿を表示
ラベル ソデイカ の投稿を表示しています。 すべての投稿を表示


Paralarva of Thysanoteuthis rhombus Troschel, 1857

This is paralarva of Thysanoteuthis rhombus Troschel, 1857. It was taken in the Ogasawara Islands.

It has transparency body and do the very unique pose that along the arm on top of the mantle.

According to (Okutani, 2015) and (Sweeney et al, 1992) are this squid distributed in the until vicinity of the south and North latitude 40 degrees of the whole world.

The adult is in the middle range of 450-650m.
Mantle length of the adult is about generally 300-850mm.

Octopoteuthis sicula Ruppell, 1844 - Black Water Water®
Side view is paralarva of Thysanoteuthis rhombus Troschel, 1857  (ML;about 7mm)

Octopoteuthis sicula Ruppell, 1844 - Black Water Water®
Front view is paralarva of Thysanoteuthis rhombus Troschel, 1857  (ML;about 7mm)


Voss NA, Stephen SJ, Dong Zh (1992). Family Cranchiidae, Prosch, 1849. In: Sweeney MJ, Roper CFE, Mangold KM, Clarke MR, von Boletzky S (ed) Larval and juvenile cephalopods: A manual for their identification. Smithson Contrib Zool 513, pp 187-210.

Okutani, T (2015). New editing World squids picture book Web Edition - National squid processing industry cooperatives(In Japanese) pp 194.

Tree of Life Web Project - Thysanoteuthis rhombus

* Previously introduced as larva of Octopoteuthis sicula, it turned out to be Thysanoteuthis rhombus so I will correct it and resend it. (2016/11/16)