On adults, approximately 7 mm and longer, the reddish pigment blotching of the body extends subepidermally into the mesial face of cerata, often reaching half way up or further on large specimens (see 02 Doto coronata. 7.5 mm long. Non-tidal boating lake, salinity 27‰ . Dee Estuary, Cheshire. February 2017. ). But, it is usually absent (1) on juveniles, and their ceratal tubercles (2) and reddish spheroids (3) are poorly developed or absent (see also 04 Doto coronata. Adult 7.5 mm long, and juveniles found together on Obelia dichtoma. LWS, salinity about 28‰. Mersey Estuary, Cheshire. January 2011. ).