Seashells

Yes, you’re right. Enoggera catchment is freshwater and there are no seashells here. However SOWN has kindly lent some web space to show this small collection from Point Lookout, North Stradbroke Island. Thanks to Peter Davie for advice and John Healy for his help on shell ID.
ARCIDAE (Ark Cockles)

ARCIDAE (Ark Cockles)

Anadara trapezia (Mud Ark, Ark Cockle) Ark cockles (Ark Shells) are both marine and estuarine, preferring estuarine tidal flats and seagrass beds. They range from Fraser Island on the southern Queensland coastline, southward through southern coastal waters....

ANOMIIDAE (Jingle Shells)

ANOMIIDAE (Jingle Shells)

Patro australis These bivalves attach themselves to hard objects, usually rocks, sometimes other shells, by means of threads (byssus) that extend from a hole in the lower valve. The upper valve is concave, while the lower is flatter. The shell is...

ARCIDAE (Ark Cockles)

ARCIDAE (Ark Cockles)

Anadara trapezia (Mud Ark, Ark Cockle) Ark cockles (Ark Shells) are both marine and estuarine, preferring estuarine tidal flats and seagrass beds. They range from Fraser Island on the southern Queensland coastline, southward through southern coastal waters....

BATILLARIIDAE (Mud Creepers and Whelks)

BATILLARIIDAE (Mud Creepers and Whelks)

Pyrazus ebeninus (Mud Whelk) Pyrazus ebeninus (Club or Mud Whelk) ranges from northern Queensland to Lakes Entrance, Victoria. Found in large numbers on muddy estuarine flats. Collected by the crew of the Endeavour in 1770. Large, elongate, turreted shell...

BULLIDAE (Bubble Shells)

BULLIDAE (Bubble Shells)

Bulla ampulla (Bubble Snail) Bulla is a genus of gastropod molluscs, the only member of the family Bullidae which is the only member of the superfamily Bulloidea. The genus consists of herbivorous marine snails belonging to the headshield slugs of the...

CARDIIDAE (Heart Cockles)

CARDIIDAE (Heart Cockles)

Vepricardium multispinosum (A Heart Cockle) Cardiidae are one of the largest and best-known bivalve families with over 200 living species and many more fossil forms. Characterised by strong, compact, completely symmetrical and equal sized heart-shaped...

CASSIDAE (Helmets and Bonnets)

CASSIDAE (Helmets and Bonnets)

Phalium areola (Checkerboard Bonnet) Cassidae are large or medium size shells characterised by a thickened and recurved outer lip forming a prominent helmet-like rim. There are eighty or more living species in warm waters around the world. Often washed up...

CUCULAEIDAE (Ark Shells)

CUCULAEIDAE (Ark Shells)

Cucullaea labiata (Hooded Ark) CUCULAEIDAE is another family of Ark Shells, alongside the ARCIDAE in the superfamily ARCAEA in the order ARCOIDA. This bivalve is large, ovate-quadrate, very inflated shell. Numerous fine radial riblets. Strong but thin...

CYPRAEIDAE (Cowries)

CYPRAEIDAE (Cowries)

Cypraea tigris (Tiger Cowrie) Deeply polished, attractive shells, much collected. In life, two lobes of the animal's mantle extend out and over the shell, meeting at midline, continually depositing enamel and protecting the shell from abrasion. Well...

DONACIDAE (Wedge Shells)

DONACIDAE (Wedge Shells)

Donax deltoides (Eugary) Donax deltoides is the local edible food and bait pipi of the Queensland and NSW beaches, adults reach lengths of 60 mm. The shell is strong, and can range from bluish-white, to golden yellow (goldies) or dark purple (known as...