Coryphella browni has cerata up to twice as long as the body width.
White surface pigment distally on translucent rhinophore and oral tentacle (1). Small white opaque marks may form a discontinuous, white, medial line from the rear cerata to tip of the tail, but are reduced to a few dots (2) on this one. Distinct tapering propodial tentacles (3) lengths are about 25% of body width.
Length 35 mm. LWS, Menai Strait, Wales. February 2011.