What's backscatter, you ask? It's the stuff that all too frequently spoils underwater photos that were taken in water that's not exactly clear. For an explanation, check out Backscatter: The bane of underwater photography, in which Bobbie holds forth about matters of physics and light, but also includes a handful of really nice critter photos.
The photo on this page shows some Crinoids on a reef in the Celebes Sea. Remember them? Long time readers may recall that Bobbie wrote about Crinoids -- also known as Feather Stars -- here on The Right Blue more than a year ago. This week she wrote about Crinoids on PhotoSynthesis, so if you find these Echinoderms interesting, or you like to see pictures of them (including some pretty amazing macros), check out Getting to know crinoids through close-up photography, and then Crinoids on the night shift. (Yep, a two-parter.)
And finally, do have a look at Hello, Fish Face -- four in-your-face close-ups of pretty fishies from the Wrasse family.