13 Coryphella browni COMPARE Coryphella verrucosa rufibranchialis

13 Coryphella browni COMPARE Coryphella verrucosa rufibranchialis

Coryphella verrucosa rufibranchialis (G. Johnston, 1832)
Interrupted white dorsal line on body becomes continuous on tail.
Subapical, white ring on cerata narrower than on C. browni. Translucent. pointed apex.
Isle of Man. May 2016. © T. Nicholson.