Glaucus atlanticus from Hawaii

September 8, 2009
From: Enjoli' Hoskins

Concerning message #1814:

Hi

I live on the island of Kauai (Hawai'i) and yesterday my children and I found this beautiful creature. Intrigued we looked online to learn more about the creature and located this site. Now we know the creature as Glaucilla marginata (a remarkably beautiful sea slug).

Locality: Nukuli'i, 1-2 feet, HI, USA, Pacific Ocean, 04 September 2009, rough; choppy. Length: 1 in. Photographer: Jeff .

Enjoli' Hoskins

enjoli@hawaii.edu

Hoskins, E.K., 2009 (Sep 8) Glaucus atlanticus from Hawaii. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22654

Dear Enjoli,

Your animal is Glaucus atlanticus which is a very close relative of Glaucilla marginata. The only sure way to distinguish the two species externally is that in Glaucus the finger-like cerata are arranged in a single row, while in Glaucilla they are in multiple rows.

Whatever the species, both are remarkably beautiful and live a strange and fascinating life.

Best wishes,
Bill Rudman

Rudman, W.B., 2009 (Sep 8). Comment on Glaucus atlanticus from Hawaii by Enjoli' Hoskins. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/22654

Factsheet

Glaucus atlanticus

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