Mark R. Showalter
Underwater Photography

  • Venus's girdle. The surface waters were filled with small, nearly transparent animals that you could find if you knew what to look for and had a little help from the sunlight. While everyone else was bored during their 15-foot safety stops at the end of each dive, I had a field day tracking down these little critters. I used a macro camera setting and a very strong flash to capture them.
  • A sea walnut, a type of jellyfish that I captured near the surface during a safety stop at the end of a dive. It was maybe an inch long. The color are just the result of diffracted light in the tiny hairs or "cilia" that is uses for propulsion.
  • A tiny goldface toby above a sponge.
  • A barred hamlet turning to look at me. I think they have very interesting patterns on their faces.
  • A large hermit crab in a very precarious position on the edge of a coral head.
  • Cymothoid isopod, hitching a ride on a blackbar soldierfish. The isopod is not a parasite; it just scavenges the specks of food that the fish leaves behind. Once an isopod attaches to a particular fish, it loses its ability to swim and so will stay there for life.
  • A closeup view of a cymothoid isopod.
  • A juvenile hogfish.
  • Another of my shallow-water closeups of nearly invisible creatures. This is a "sea gooseberry".
  • A "warty comb jelly", similar to but much larger than the sea walnut shown earlier.
  • I took this photo at the end of my final dive. The chain was hanging from the boat at 15 feet to provide a reference during our safety stops. Frank pointed out this little, juvenile filefish, which was maybe a quarter of an inch long.
  • I have no idea what this is. Some of the weird transparent things floating by are a total mystery to me.