Onchidoris muricata Length 8mm. r: round topped club-shape tubercles on periphery. f: flat topped club-shape tubercles on dorsum. g: translucent gills. Mantle raised showing dorsal surface of foot. Low water spring tide, Menai Strait, Wales. April 2011.

Species

Onchidoris muricata

Photographer / copyright holder

I.F. Smith

Onchidoris muricata. Length 8mm. Yellowish white rhinophores and ring of small inconspicuous gills. Body translucent; yellowish viscera and shiny spicules visible. LWS. Menai Strait, Wales. April 2011.

Species

Onchidoris muricata

Photographer / copyright holder

I.F. Smith

Onchidoris depressa. Length 4mm. Asymmetric orange-brown liver extends forwards on left. Anterior edge of foot curves backwards around mouth. Ample mantle extends well beyond foot and head, revealing shining spicules. Menai Strait, Wales. Sept. 2011.

Species

Knoutsodonta depressa (Alder & Hancock, 1842)

Photographer / copyright holder

I.F. Smith

Onchidoris depressa. Length 4mm. Long soft colourless tubercles. Ring of tubercles may form a slight sheath around the rhinophore pit. Menai Strait, Wales. September 2011.

Species

Knoutsodonta depressa (Alder & Hancock, 1842)

Photographer / copyright holder

I.F. Smith

Onchidoris depressa. L. 4mm. Spicules, transverse on dorsum, oblique on subdorsum, radial on flanks. 6 longitudinal lines of spots on dorsum, and 3 concentric lines on flanks. Ring of unobtrusive yellowish white gills, with ring of brown spots within.

Species

Knoutsodonta depressa (Alder & Hancock, 1842)

Photographer / copyright holder

I.F. Smith

LWS, Menai Strait, Sept. 2011.

Onchidoris depressa. Length 4mm. Depressed profile. Long soft colourless tubercles. Rhinophores faintly yellowish, with oblique lamellae. Translucent gills on right of image. Menai Strait, Wales. September 2011.

Species

Knoutsodonta depressa (Alder & Hancock, 1842)

Photographer / copyright holder

I.F. Smith

Goniodoris nodosa. Juveniles, length 7mm. Many other smaller ones in August 2010 when just becoming large enough to be noticed. Yellow viscera. Gills simply pinnate with alternating large/small laminae. Menai Strait, Wales.

Species

Goniodoris nodosa

Photographer / copyright holder

I.F. Smith

Facelina auriculata. Juv. L. 5mm. Iridescence undeveloped. Short cerata with splashes of white pigment down front, and coral pink oesophagus (part hidden by ceras in image), distinguish it from juvenile F. bostoniensis. LWS. Menai Strait, Wales. Aug. 2010

Species

Facelina auriculata

Photographer / copyright holder

I.F. Smith

Facelina bostoniensis. L.18mm. Foot much wider than body. Cerata long, linear, rather untidy and lack iridescence . Lamellated rosy fawn rhinophores. Internal mouthparts and oesophagus rose-pink. Laxford, Scotland. October 1975.

Species

Facelina bostoniensis

Photographer / copyright holder

I.F. Smith

Facelina bostoniensis. Juv. L. 5mm. Discontinuous medial line on tail. Rhinophores whitish. A few white spots between rhinophores. Internal mouthparts and oesophagus pale orange-brown. Slender sickle-shape propodial tentacles. Mersey, Sept 2010.

Species

Facelina bostoniensis

Photographer / copyright holder

I.F. Smith

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