Nembrotha chamberlaini from the Philippines

January 22, 2002
From: Mary Jane Adams


Hi Bill,
Here are a couple of Nembrotha chamberlaini from my May, 2001 trip to Batangas, Philippines. Underwater they looked like they had black backs, however when examined on the surface or photographed with strong strobe light this color was varying shades of red-brown. The pattern of the color splotches varies quite as if each one was individually hand painted.

This species has such large translucent eye spots it makes me wonder if they see better than the average slug.
Best regards,
Mary Jane

divepng@yahoo.com

Adams, MJ. , 2002 (Jan 22) Nembrotha chamberlaini from the Philippines. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5977

Dear Mary Jane,
The actual eyes are way down on the 'brain' on the inside of the skin, but having a clear pigmentless area above the eyes does ensure that some light gets through. As far as I know 'seeing' in the sense of forming images is beyond all slugs. My understanding is that they can 'see' light and dark, so shadows moving over them can alert them to possible danger, but that's about it.
Best wishes,
Bill Rudman

Rudman, W.B., 2002 (Jan 22). Comment on Nembrotha chamberlaini from the Philippines by Mary Jane Adams. [Message in] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/find/5977

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Nembrotha chamberlaini

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