from Hungry Point, exposed during an extreme minus tide, fresh dead but eroded. Aaron Baldwin had first suggested this is the low flat ecomorph of Lottia pelta from SE Alaska, based in part on some riblets that are still evident despite the dorsal erosion. Shell is about 37mm.
After side profile shots were added, the consensus is it is L. scutum.
The rare new species of the Ophioglossolambis digitata complex, Ophioglossolambis itsumiae Lum, 2021. Endemic to the Mascarene Basin and nearby islands, dead collected on coral reefs at 15-20m deep by local fishermen, 1987. Ex collection Peter Ignoti
Caught on longline gear 60+ fathoms
Found inside a halibut stomach while commercial longlining.
Caught in shrimp pot...
Davidson (Pierce) Seamount
Hanging out on boulders at a -5 tide. Not common, but I seem to find at least one of these trophons at every big low tide.
This large intertidal trophon is a mystery to me. I've found it three times this month, and cannot seem to ID it. It seems to commonly have a commensal red-banded scaleworm, Arctonoe vittata, which I also see on sea stars.
I call this my "mystery trophon" - I see them reasonably often in the low intertidal, with quite eroded and highly sculptured shells, about 4 cm long. Can't figure out what they are, though. Poking around at a -5.3 tide -- first big low tide of the spring.
I don't think I've found this particular snail before, and am not quite sure of my ID.
I have posted several similar trophons of the low intertidal, with several different IDs, and have yet to be convinced they are different species, or that any of those 3 IDs is correct. https://www.inaturalist.org/observations/6019253
https://www.inaturalist.org/observations/4072603
https://www.inaturalist.org/observations/4125626
Night low tide on the city dock (-5 ft), on limstone riprap.