Length 12 mm. North Yorkshire. September 2014. (leg. Paula Lightfoot).
Brownish-pink border around head (1) and foot (2).
Dark linear viscera (3) visible through translucent sole, but no medial dividing line.
Hyponotum shifted outwards (4), to form channel for exhalent water (can shift further to allow release of faeces).

KEY ID FEATURES and similar species at: 01 Boreochiton ruber. Length 12mm. North Yorkshire. September 2014. (leg. Paula Lightfoot).