Juvenile Facelina bostoniensis. Length 5mm. Interior white cnidosac at tip with small patch of white surface pigment. No other white pigment splashes on cerata. No iridescence. Eyes behind rhinophores. Mersey Estuary. September 2010. Species Facelina bostoniensis Photographer / copyright holder I.F. Smith
Eubranchus farrani. Length 6mm. Posterior extends far beyond cerata. Orange surface pigment. Cerata smooth, changeable, but always at least moderately inflated. LWS, Menai Strait, Wales. August 2010. Species Amphorina farrani (Alder & Hancock, 1844) Photographer / copyright holder I.F. Smith
Eubranchus farrani. Length 6mm. Much of of the dorsum exposed. Rhinophores and oral tentacles distally or entirely orange. Eyes set back from rhinophores. LWS, Menai Strait, Wales. August 2010. Species Amphorina farrani (Alder & Hancock, 1844) Photographer / copyright holder I.F. Smith
Doto coronata. Length 7mm. Lateral quadrangular head flaps extended, don't mistake for propodial expansion. Mantle edge raised near rhinophores; don’t mistake for head crests. On Dynamena on Fucus serratus. LWS, Menai Strait, Wales. March 2010. Species Doto coronata Photographer / copyright holder I.F. Smith
Doto coronata spawn mass, 5mm across, on flat surface. Convoluted white band, apparently with accompanying line of mucus, perhaps to secure the mass. LWS, Menai Strait, Wales. February 2010. Species Doto coronata Photographer / copyright holder I.F. Smith
Doto coronata. Length 7.5mm. Lines indicate: a) head crest (raised rib) in front of right rhinophore and b) the left edge of the mantle. LWS, Mersey Estuary, January 2011. Species Doto coronata Photographer / copyright holder I.F. Smith
Doto coronata. Length 7mm with red juvenile to left. Internally, adult’s cerata have orange digestive gland, scarlet spheroids and white granular bodies. Dilated rhinophore sheaths. LWS, Mersey Estuary, January 2011. Species Doto coronata Photographer / copyright holder I.F. Smith
Doto coronata. Length 10mm. Crimson surface pigment extending between cerata from dorsum onto flanks. 9 cerata each side (usual max. 8) and 6 rings of tubercles (usual max. 4) on some cerata. Black-red spheroids in tubercles. Orkney, April 1977. Species Doto coronata Photographer / copyright holder I.F. Smith
Doto coronata. Length 7.5mm. Dorsal crest (raised rib) from rhinophore to front of head is inconspicuous in this instance, but often visible. Translucent rhinophores and dilated sheaths have a few white pigment marks. LWS, Mersey Estuary, January 2011. Species Doto coronata Photographer / copyright holder I.F. Smith
Doto coronata. Largest 7.5mm long. Juveniles have little or no surface pigment and weakly developed internal red spheroids. Colour of digestive gland in cerata reflects diet. LWS, Mersey Estuary, January 2011. Species Doto coronata Photographer / copyright holder I.F. Smith
