I found this arrow crab during a nights dive at Radar Reef. The cardinalfish (I think it's a dusky cardinalfish, but it may be a sawcheek cardinalfish) kind of floated into the frame, and I didn't want to wait until it floated out...

Photographer: Dave Read
Location: Radar Reef, Cayman Brac
Depth: 20'
Film: Fuji 400 (Fuji QuickSnap Disposable Camera)
Equipment: Ikelite Aquashot w/macro kit
Subject: Arrow crab and cardinalfish