Images showing two of four individuals which showed up recently in the filter beds of the seawater system at UCSB's Marine Operations Facility. The water is pumped in from a depth of 55' off of Campus Point, and the nudibranchs were likely pumped in as larvae.

One of the very few species of terrestrial mollusk found at Pinnacles National Park, these snails spend their days hiding deep in rock crevices, apparently only coming out on cool, humid evenings. This pair was discovered mating.

@oksnaillaboratory , @susanhewitt , @pliffgrieff , @tlawson , @euproserpinus I thought this would be a sighting you all would especially appreciate.

This brilliant colour is caused by IIV-31 (Isopod Iridescent Virus). I've been checking hundreds of pill bugs over several years for this unusual phenomenon and my persistence finally paid off!
Sadly, this total colour change is usually the later stage of the virus; once a pill bug is this bright it generally doesn't have much longer to live.

Hundreds of B. gouldiana were present in the shallow lagoon just inside of the cobble field at Naples, with individuals measuring up to 50 mm total length.

This is a continuation of a population bloom of B. gouldiana at Naples that started last fall, the first time I have seen this species at Naples since beginning regular sampling there in 2006.

So far, there has been no sign of reproduction, but I expect to find their egg strings pretty soon.

More popularly known among divers as sheep nudibranch (although it isn't a nudibranch), this sapsucking slug is associated with the algae, Avrainvillea sp. (especially A. erecta and A. longicaulis). They grow to only 5-7mm in length.