Mollusk Collection (page 7)

Mollusc specimen drawer
The shells in this specimen drawer were collected by Charles Darwin from various localities during the voyage of the HMS Beagle between 1831 and 1836

Stephanoceras humphriesianum, ammonite
This fossil cephalopod originates from the Inferior Oolite, Middle Jurassic rocks near Sherbourne, Dorset dating from about 170 million years ago

Kosmoceras acutistriatum, ammonite
This Jurassic ammonite from Wiltshire, England occurs in a fine-grained shale, but has been severely flattened. However, the original lustre of the shell has been retained

Cenoceras pseudolineatus, nautiloid
A section cut and polished through Jurassic nautiloid from Dorset, UK. Shows the internal chambers filled or partly filled with calcite. Diameter 7cm

Partula affinis, P. otaheitana, French Polynesian tree snail
Plate 29 from Studies on the Genus Partula by Henry Edward Crampton (1916). Found only in French Polynesia this entire genus is on the brink of extinction due to predation from the introduced rosy

Oliva erythrostoma
Plate 31 from Coquilles Univalves Marines by Duclos (1835)

Ammonite marble
Asteroceras (large shells) and Promicroceras (small shells) ammonites, seen here in the polished surface of a specimen of marble originating from the Lower Lias, near Yeovil, Somerset

Fossilised Tellinella rostralis, tellin bivalve
Fossilised specimen of a Tellin bivalve from Ecocene Belgium, 58 million years ago. Bivalves are hinged molluscs which first appeared in the Middle Cambrian some 500 million years ago

Symmetrocapulus, limpet
Fossilised specimen of a limpet found in the Jurassic limestone of Les Moutiers en Cinglais, France. 206-142 million years old

Acroceolites subtenius, belemnites
A fine group of belemnites (Acroceolites subtenius) preserved in soft Jurassic shale from Yorkshire. Longest specimen is 9cm long

Asteroceras and promicroceras, ammonites
A rock specimen containing Asteroceras (large shell) and Promicroceras (small shell) ammonites from the Lower Lias, Marston Magna, near Yeovil, Somerset

Busycon contrarium, lightening whelk
Fossilised specimen of the Pilocene gastropod, originating from Florida, USA, 5 million years ago. The lightening whelk has a long siphonal canal

Freshwater pearls are formed within freshwater mollusc shells. They do not appear as spherical shapes as oyster pearls do and they are less valuable

Nipponites, uncoiled ammonoid
An uncoiled Nipponite ammonoid fossil. Ammonoids are an extinct group of marine fossil cephalopods related to todays Nautilus

Voluta muricina, gastropod
Specimen of the large marine gastropod Voluta muricana. It has a ornate, spiralling shell with a large aperture

Orthoceras, nautiloid
Shown here is Orthoceras, a straight Ordovician nautiloid

Architectonica sp. sundial shell
Fossilised specimen of a sundial shell found in Orciano, Italy

Gastrioceras, goniatite
Gastrioceras, a Carboniferous goniatite. Goniatites were highly mobile creatures similar to octopus and squid, but were protected by a coiled shell divided up into many chambers

Scabrotrigonia thoracica, bivalve
This horny-ribbed bivalve dates from the late Cretaceous period (142 million years ago), they are still common in todays seas and oceans

Typhis pungens, gastropod

Harpagodes wrightii, gastropod
A Jurassic gastropod originating from Gloucestershire, England

Desmoulia conglobata, gastropod
A cross-section of a desmoulia conglobata shell specimen

Dentalium elephatinum
Plate 2, watercolour by Anna Atkins from her 256 original drawings for Lamarcks Genera of shells, 1822-24

Littorina sp. periwinkle
A comparison of various periwinkle specimens (Littorina), held at the Natural History Museum, London

Loligo sp. squid
Specimen of a squid (Loligo sp.)

Bivalve mollusc

Belemnites
Drawing from the manuscripts collection of Mary Anning (1799-1847)

Nautilus pompilus, common nautilus
A seventeenth century carved nautilus shell showing three techniques used by Dutch craftsmen: cameo work, engraving and an opening resembling a helmet cut into the wall of the chamber

Octopus vulgaris, common octopus
Octopus model with Homarus gammarus, European lobster in Origin of Species Gallery at the Natural History Museum, London

Freshwater snails
Specimen jar containing some freshwater snails, held at the Natural History Museum, London

Bulinus sp. snails
Specimen jar containing snails (Bulinus). These snails act as intermediate hosts for the parasite of the tropical disease bilharzia. Specimens held at the Natural History Museum, London

Conus cedonulli, matchless cone
Plate 48 from Thesaurus Vol. 3, 1758 by Albertus Seba (1665-1736)

Volute shell
Watercolour 389 by Thomas Watling, entitled Gung a rong, from the Watling Collection

Gryphaea arcuata Lamarck, fossil oysters
About 190 million years old, found in the Lias clays and limestones of the Jurassic period. Commonly called Devils Toenails

Charonia rubicunda, red australwelk and a volute
Watercolour 388 by Thomas Watling, entitled Gna-gorong and Gung a rung, from the Watling Collection

Strombus tricornis, lightfoot
Shell specimen with Martin Listers engraving from his Historiae Sive Synopsis Methodicae Conchyliorum, 1685-1692, plate 873

Collection of molluscs
Plate 16 from The History of Rutherglen and East-Kilbride by David Ure ( 1793)

Dipsas sp
Plate 10, a holotype from Arhtur MacGregors Hans Sloane, 1994. Shell specimens showing Sir Hans Sloanes catalogue numbers

Semicassis labiata labiata, agate cassid

Tonna cerevisina, tun shell
Watercolour 386 by Thomas Watling, entitled Ka lee, from the Watling Collection

Squid specimen
Specimen jar containing squid, held in the Darwin Centre at the Natural History Museum, London

Coronula diarnderna
Plate 10, watercolour by Anna Atkins from her 256 original drawings for Lamarcks Genera of shells, 1822-24

British Nudibranch Molluscs, Plate aA
History of British Mollusca, Forbes and Hanley, Vol I 1853. Illustration of Triopa claviger, Egirus punctilucens, Tritonia hombergi, Doto coronata, Scyllaea pelagica

Spomdylus imperialis, imperial thorny oyster

Hildoceras bifrons, snakestone ammonite
A snakestone ammonite (Hildoceras bifrons) from the Jurassic Lias rocks of Yorkshire, U.K

Schroederoceras bandonis, cephalopod
An extinct, marine fossil invertebrate with a coiled shell from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Pronorites cyclolobus, ammonoid
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

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