Rissoa parva. Height 2.5mm. On undersurface of water. White foot with black & orange-brown marks. Black opercular lobes fully extended, part of operculum visible at their rear. Yellow head. Menai Strait. March 2012.
Rissoa parva. Height 2.5mm. On undersurface of water. White foot with black & orange-brown marks. Black opercular lobes fully extended, part of operculum visible at their rear. Yellow head. Menai Strait. March 2012.
Rissoa parva. Height 2.5mm. On undersurface of water. White foot with black & orange-brown marks. Black opercular lobes fully extended, part of operculum visible at their rear. Yellow head. Menai Strait. March 2012.
