Personal favourites: Daphne and Derek Howlett
"We have
been collecting for over 30 years. Bivalves in general and cockles and
scallops in particular form a great part of our collection along with freshwater and land shells from our local area and world wide. Derek
has been involved in many surveys in Norfolk for the Broads Authority,
English Nature and the Environment Agency to identify both the land and freshwater species living in Norfolk and has contributed to many local
reports and publications, Viz. The booklet published by Norfolk and
Norwich Naturalists' Society, Freshwater Bivalves in Norfolk,
co-authored with Dr Roy Baker."
Anodonta anatina Linnaeus, 1758 Rockland Broad, Norfolk. The duck mussel is the
commonest unionid species in Norfolk.
Acanthocardia echinata (Linneaus, 1758) Pendine Sands, Wales. A colourful spiny cockle.
Gloriapallium pallium (Linneaus, 1758) Thailand. One of the more brightly coloured scallops.
Acrosterigma elongatum (Bruguiere, 1789) Australia. One of the larger species of cockle.
Pseudoanodonta complanata Rossmassler, 1835 Rockland
Broad, Norfolk. The conservation importance of this mussel has been
endorsed by the Government's placing it as a priority species in the UK
Biodiversity Action programmes. The UK has probably the healthiest
populations of the mussel in Europe.
Anodonta cygnia Linnaeus, 1758 Rockland Broad,
Norfolk. The swan mussel is the largest of our native freshwater
mussels, inhabiting rivers, canals, lakes and broads.
Cepaea nemoralis Linnaeus, 1758 A beautiful selection of colours of these landsnail shells. These ones come from Belgium.
Lanistes ovum purpureus (Jonas, 1839) Tanzania. A beautifully shaded and striated purple shell with dark red-brown aperture edged in red.
Tropidophora from Madagascar:
(top left) Tropidophora cuveriana Petit de la Saussaye, 1841
(top centre) Tropidophora occlusa Morch, 1852
(top right) Tropidophora deburghiae Reeve, 1861
(bottom left) Tropidophora moulinsii Grateloup, 1840
(bottom centre) Tropidophora thesauri Fischer-Piette, 1949
(bottom right) Tropidophora humberti Fischer Piette, 1945
(top left) Tropidophora cuveriana Petit de la Saussaye, 1841
(top centre) Tropidophora occlusa Morch, 1852
(top right) Tropidophora deburghiae Reeve, 1861
(bottom left) Tropidophora moulinsii Grateloup, 1840
(bottom centre) Tropidophora thesauri Fischer-Piette, 1949
(bottom right) Tropidophora humberti Fischer Piette, 1945
Cardium costatum (Linnaeus, 1758) Senegal. A lovely example of this fine ribbed, fragile species of cockle.
