16:40 - Alan tentatively identified as Thecacera pennigera (Montagu, 1815).

15:00 - Unidentified sea slug collected on our dock today. (Gemma Dock, Eel Pond, Woods Hole). 3 specimens collected, largest is approximately 10 mm. Alan Kuzirian thinks is an Ancula but unable to determine species so far. Pointed out the set of appendages that are behind the gills at mid-body. This is stumping him.