An assortment from Hermosa Artificial Reef, White Point Rock, the Crane at Haggerty's and Golf Ball Reef. On Sunday, HAR was thick with phytoplankton, and 57 degrees. Vis was decent on GBR, with current, surge, and 61 degrees.

Whether zipping across kelp blades, clutching onto bryozoan, or clinging to gorgonian stalks, amphipods are ever-busy doing the jobs for which they were designed.

A species of gammarid amphipod mating.

A tangle of caprellid amphipods on gorgonian.

Just poking its head out, this is a worm shell snail, a species of snail in the family Vermetidae. Its tubular shell is attached to the substrate and can be mistaken for a worm tube. Unlike shells made by worms, the snail shell comprises three layers, with an inner lining of shiny nacre.

Until I looked at the photos, I didn't realize that the worm snail secretes a mucous web to snare prey.

Fitting neatly on the end of a chopstick, Doto columbiana.

World's smallest Cadlina flavomaculata and new-to-me tunicate.

Doriopsilla albopunctata

• Re:ally gone underWORLD ;~) Divebum Don 22:55:48 07/28/16 (0)