23 Tectura virginea. Shell-length 6.6mm. Female; mantle and part of upper viscera removed. North Yorkshire, September 2014.

23 Tectura virginea. Shell-length 6.6mm. Female; mantle and part of upper viscera removed. North Yorkshire, September 2014.

1: black eye at base of cephalic tentacle. (images 21-24Tv)
3: buccal mass showing through translucent head (20-23Tv)
4: part of radula among viscera (23-24Tv)
6: yellow of radula visible through translucent head (22-23Tv)
11: rectum containing pale faecal pellets (23Tv)
15: severed U-shape shell-muscle (20-24Tv)
Long coiled intestine compacts faeces into firm white pellets that will not contaminate ctenidium near anus in nuchal cavity (T. virginea lacks a hypobranchial gland to produce mucus to bind faecal fragments).

marinvert.senckenberg.science/image-browse/