Tambja abdere was located at a site named Andrea's Eagle on reef at a depth between 40-70 feet. Length was between 4-9 cm. Water temperature was 83 degrees F.
7mm length. I emailed these photos to Sandra Millen and she agrees that this is not Cumanotus fernaldi, but it is the undescribed species she has been working on, the description of which she hopes to have published by this winter. Specimen at CASIZ 208955.
On the lip of a Red Abalone I was photographing. The nudibranch went unseen until photo was enlarged on screen.