Myosotella myosotis. Flesh translucent white with greyish tint in parts. Eyes at base of tentacles. MHW, salt marsh, brackish 22ppt, Severn Estuary, August 2011. Species Myosotella myosotis Photographer / copyright holder I.F. Smith
Myosotella myosotis. Heights 7.5mm and 6mm. 2 or 3 teeth on inner lip. 0 or 1(max.) tooth on outer lip. Lip thickens when mature (larger specimen). MHW, salt marsh, brackish 22ppt, Severn Estuary, August 2011. Species Myosotella myosotis Photographer / copyright holder I.F. Smith
Catriona gymnota. Specimen with olive digestive gland and powdery orange and white distally on cerata. Length 10 mm. Near Tubularia on reef exposed to strong tidal rip, LWS, Orkney, Scotland. August 1976. Species Catriona gymnota Photographer / copyright holder I.F. Smith
Buccinum undatum juvenile. Shell height 9.5mm. Respiratory siphon in and extending from siphonal channel. Underside of siphon is slit. LWS, Menai Strait, Wales. September 2011. Species Buccinum undatum Photographer / copyright holder I.F. Smith
Buccinum undatum juvenile. Shell height 9.5mm. Operculum ovoid, concentric, too small to close aperture fully. Outer lip of aperture thin and fragile on juveniles. LWS, Menai Strait, Wales. September 2011. Species Buccinum undatum Photographer / copyright holder I.F. Smith
Buccinum undatum juvenile. Shell height 9.5mm. Sole and ventral surfaces of head and tentacles lack black marks. No snout on head. Siphon extends from siphonal canal. LWS, Menai Strait, Wales. September 2011. Species Buccinum undatum Photographer / copyright holder I.F. Smith
Foot of Buccinum undatum juvenile. Shell height 9.5mm. Translucent white with black marks mainly on sides, also less obtrusive opaque white spots. Operculum on posterior. Anterior edge has three layered sandwich structure. LWS, Menai Strait. Sept 2011. Species Buccinum undatum Photographer / copyright holder I.F. Smith
Buccinum undatum juvenile. Shell height 9.5mm. Stretching upwards. Dorsal surfaces of foot, body and head have black marks. Eye on top of wide basal third of tentacle. Head a flattened projection with no snout. LWS, Menai Strait, Wales. September 2011. Species Buccinum undatum Photographer / copyright holder I.F. Smith
Buccinum undatum juvenile. Shell height 9.5mm. Siphon and tentacles at anterior. Part of operculum resting on posterior of foot protrudes from under shell. LWS, Menai Strait, Wales. September 2011. Species Buccinum undatum Photographer / copyright holder I.F. Smith
Coryphella verrucosa rufibranchialis. Length 6.5mm. Internal pink diagonal band below rhinophores appears as a V in dorsal view. Several small cerata at bases of ceratal groups. Continuous white line on tail, but dorsal line not developed on this one. Species Coryphella verrucosa Photographer / copyright holder I.F. Smith
