Description Arbacia punctulata (aboral view), collected off Georgia, U.S.A., North Atlantic Ocean (031 23 24N, 080 53 06W), from a depth of 17 m.
Source : Echinoderms of Panama.Author Coppard, SimonJPG file - 599.58 kB - 1 102 x 1 058 pixels
Extra information Camera Maker: Nikon Corporation Camera Model: NIKON D60 Original Time Taken: 2009:12:08 00:45:27 Time Digitized: 2009:12:08 00:45:27 Shutter Speed: 1/125 sec Aperture: f/5.6 ISO Sensitivity: 100 Exposure Compensation: 0 EV Metering Mode: Pattern Flash Fired: Flash, Auto-Mode, Return light detected Original Width: 1102 pixels Original Height: 1058 pixels Orientation: 1: Horizontal (normal) Focal Length: 48 mm Focal Length Equivalent in 35mm Film: 72