Rissoa parva. t: tentacle with white line. b: dark band on foot. o: dark opercular lobe. p: pallial tentacle. y: yellow patch behind eye. g: groove. c: brown comma across varix. v: white labial varix. Smooth shelled form. LWS Menai Strait, Wales. Aug.2010 Species Rissoa parva Photographer / copyright holder I.F. Smith
10 mm long chestnut brown Goniodoris castanea (upper centre of image) on Botryllus schlosseri out of water. LWS. On rocky shore exposed to strong currents. Menai Strait, Wales. April 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Posterior of Goniodoris castanea. Body length 10 mm. a: pale brown anal papilla on white pigment mark at centre of gill circle. r: two ridges on posterior of body. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Anterior of Goniodoris castanea. Body length 10 mm. p: penis in brown sheath (hermaphrodite, so all adults have). r: rhinophore. o: oral veil with S-shape edge. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Juvenile Goniodoris castanea ventral view. Length 7mm. Oral veil has S-shape edge. Sole translucent white with white pigment marks, revealing coral-pink viscera centrally. On rocky shore exposed to strong currents, ELWS, Menai Strait, Wales. March 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Goniodoris castanea. Length 10mm. Underside of oral veil and mouth. Sole translucent white with white pigment marks, revealing coral-pink viscera centrally. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Juvenile Goniodoris castanea. Length 7mm. Rhinophores with incomplete lamellae so anterior surface smooth. On rocky shore exposed to strong currents, ELWS, Menai Strait, Wales. March 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Goniodoris castanea. Length 10mm. Truncate apex of rhinophore protrudes above lamellae. On rocky shore exposed to strong currents, LWS, Menai Strait, Wales. April 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Lateral view of adult Goniodoris castanea. Illustration from Alder & Hancock. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
Lateral view of juvenile Goniodoris castanea. Length 7mm. Erect rim on the reduced mantle. Ridges on oral tentacles. On rocky shore exposed to strong currents, ELWS, Menai Strait, Wales. March 2011. Species Goniodoris castanea Photographer / copyright holder I.F. Smith
