The Conchological Society of Great Britain and Ireland | Helping to understand, identify, record, and conserve molluscs

Coryphella lineata anterior. r: wrinkled rhinophore. o: oral tentacle. p: propodial tentacle. Body length 15mm. LWS, Menai Strait, September 2011.

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Coryphella lineata cerata; two white lines on each expand near apex to nearly cover the white internal cnidosac. LWS, Menai Strait, September 2011.

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Coryphella lineata adult, 15mm long. Wrinkled rhinophores. Raised dorso-lateral ridge supporting anterior group of cerata clearly visible. Ridge less prominent in gaps between cerata groups. LWS, Menai Strait, September 2011.

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Coryphella lineata juvenile, 8mm long. Ovotestis not yet developed so substrate visible through near-transparent rear half of body. Dorsal line ends at posterior group of cerata. Lateral lines extend onto, and unite on, tail. LWS, Menai Strait, Sept. 2011

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Underside of Coryphella lineata juvenile, 8mm long. Anterior of foot expanded into propodial tentacles. Ventrally cleft mouth parts project forwards of foot. LWS, Menai Strait, September 2011.

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Coryphella lineata adult, 15mm long. Dorsal line hidden. White lateral line visible, except where mantle raised near posterior to reveal upper surface of foot. LWS, Menai Strait, September 2011.

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Coryphella lineata adult, 15mm long. White lobules of ovotestis visible in posterior half. White lateral lines hidden except on tail where they unite. LWS, Menai Strait, September 2011.

Species

Fjordia lineata (Lovén, 1846)

Photographer / copyright holder

I.F. Smith

Juvenile Rissoa parva. Shell height 2.6mm. White sole. Blackish opercular lobe and blackish band on dorsal surface of foot. Transparent outer lip area. LWS, Menai Strait, Wales. September 2011.

Species

Photographer / copyright holder

I.F. Smith

Juvenile Rissoa parva. Shell height 2.6mm. White pigment on anterior of dorsal surface of foot. Short, bifid, yellowish white snout. Black medial mark on head (variable). Transparent outer lip area. LWS, Menai Strait, Wales. September 2011.

Species

Photographer / copyright holder

I.F. Smith

Juvenile Rissoa parva. Shell height 2.6mm. c: costa (yet to develop on much of body whorl). s: bifid snout. l: brown spiral line connecting transverse brown streaks (spiral line absent on some shells). LWS, Menai Strait, Wales. September 2011.

Species

Photographer / copyright holder

I.F. Smith