@imlichentoday Is this a mommy-babies thing (like skeleton shrimp) or one large adult and a bunch of smaller ones?
San Diego County, California
Didn't notice this little guy until I was processing photos.
Tide pool at -0.62'. Same as one posted by @imlichentoday today.
Berthella chacei was located on reef at a depth between 100-120 feet. Length was not measured. Water temperature was 48 degrees F.
Located in tide pools during low tide at about -1.3 feet.
Found in a low intertidal pool in a cave. Scanned from a 35 mm slide.
Okenia rosacea was located on reef at a depth of 20 feet. Length was between 2-3 cm. Water temperature was 61 degrees F.
Tide pooling at low tide
Monterey County, California
A fun detective puzzle for anyone wanting to dig further to species (and I'm not certain of genus, but it seems plausible). Thank you Smithsonian for the first photo in this slideshow ("Tiny Paddles": https://ocean.si.edu/ocean-life/invertebrates/hyper-eyes-hyperiids-how-some-shrimp-creatures-see-light-deep-sea
I found three of these alive inside a live salp, likely Cyclosalpa affinis (separate observation: https://www.inaturalist.org/observations/186620626) drifting in a marina. They refused to leave the comfort of their salp, so these aren't the finest photos, but I did get some exceptionally mediocre video too.
Video: https://flic.kr/p/2p7N1LQ
I think I see one in my other Cyclosalpa affinis observation too, although its too distant to tell (photo from boat): https://www.inaturalist.org/observations/99683938
@goseascience @underwaterpat @imlichentoday @clinton @prokhozhyj @clauden
Catriona colombiana was located on sandy substrate at a depth of 50 feet. Length was 1 cm. Water temperature was 57* degrees F.
Note that a different measuring device was used for water temperature. This device was calibrated and found to provide a true measurement, so it is not necessary to add 4 degrees to find the true temperature as with my other observations. See my notes for details.