Friday, January 23, 2015

Sea urchins of the night

Last night, we made a night dive.  There is definitely a different group of animals out and about at night compared to the daytime.  The bodies of these urchins were 2 to 3 inches.  The spines ranged from less than an inch to over 4 inches.  All photos were taken at depths of 25 feet or less.

I'm guessing that this is a variegated urchin


Long-spined urchin

Slate-pencil urchin

Long-spined urchin?

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