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Some Common
Sea Shells
of Madagascar
Mark Smith Nature Tours www.marksmithnaturetours.com
Mark Smith Nature Tours www.marksmithnaturetours.com
COWRIES (Cypraeidae)
Arestorides argus Eyed Cowrie
uncommon 5 – 9 cm
Cypraea tigris Tiger Cowrie
common 4 – 14 cm
Mauritia mauritiana Humpback Cowrie
common 7 – 11 cm
Mauritia arabica Arabian Cowrie
common 3 – 8 cm
Mauritia histrio Harlequin Cowrie
common 2 – 7 cm
Talparia talpa Mole Cowrie
frequent 5 – 8 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
Lyncina lynx Lynx Cowrie
common 2 – 7 cm
Lyncina vitellus Pacific Deer Cowrie
common 4 – 9 cm
Mauritia scurra Jester Cowrie
uncommon 2 – 5 cm
Erosaria erosa Eroded Cowrie
common 2 – 5 cm
Erronia errones Erroneous Cowrie
common 2 - 4 cm
Erosaria lamarckii Lamarck’s Cowrie
frequent 3 – 5 cm
Luria isabella Isabella Cowrie
common 2 – 5 cm
Erosaria caputserpentis Snake’s Head Cowrie
very common 2 – 4 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
HARP SHELLS (Harpidae)
Harpa major Large Harp
common 6 – 9 cm
Harpa cabriti (ventricosa) Ventral Harp
common 4 – 6 cm
Harpa amouretta Lesser Harp
common 4 – 6 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
CONES (Conidae)
Conus betulinus Beech Cone
common 7 – 14 cm
Conus geographus Geography Cone
common 6 – 11 cm
Conus striatus Striated Cone
frequent 7 – 10 cm
Conus generalis General Cone
common 5 – 8 cm
Conus textile Textile Cone
common 4 – 11 cm
Conus figulinus Fig Cone
common 4 – 7.5 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
Conus arenatus Sand Dusted Cone
common 25-70 mm
Conus zeylanicus
Obese Cone
30 – 50 cm
Conus ebraeus Hebrew Cone
35 – 55 cm
Conus tessulatus Tessellate Cone
common 25-50 mm
Conus planorbis?? Planorbis Cone
Common 4.0-7.5 cm
Conus namocanus Namocanus Cone
40 – 90 mm
MELONGENA (Melongeidae)
Volema paradisiacal Paradise Melongena
4 – 6 cm
FIGS (Ficidae)
Ficus variegate Variegated Fig
common 5 – 8.5 cm
RAPA (Muricidae)
Rapana rapiformis Common Rapa
common 6 – 8 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
SPIDER CONCHS AND CONCHS (Strombidae)
Lambis lambis Spider Conch common 10 – 15 cm
Lambis chiragra Chiragra Spider Conch common 12 – 23 cm
Strombus lentiginosus Silver Conch
common 5 – 10 cm
Strombus luhuanus Blood-mouth Conch
common 2 – 7 cm
Strombus gibberulus Hump-backed Conch
common 4 – 7 cm
Strombus labiosus Thick-lipped Conch
common 2 – 5 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
WHELKS (Buccinidae)
TULIPS AND SPINDLE SHELLS (Fasciolariidae)
Colubraria muricata Spotted Dwarf Triton
frequent 6 – 9 cm
TRITONS (Tritonidae)
Charonia tritonis Pacific Triton
common 15 – 45 cm
Pleuroploca trapezium Trapezium Horse Conch
common 9 – 10 cm
Fusinus tuberculatus Noduled Spindle Shell
common 10 – 13 cm
CERITHS (Cerithidae)
Rhinoclavis sinensis Chinese Horn
3 – 6 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
ROCK SHELLS (Muricidae)
NERITES (Neritidae)
Drupa lobata Lobed Drupe
common 2 – 3 cm
Nerita textilis Textile Nerite
frequent 3.5 – 5 cm
NASSA SHELLS (Nassariidae)
Nassarius papillosus Pimpled Nassa
common 4 – 5 cm
Nerita polita Polite Nerite
common 2 – 3 cm
MOON SHELLS (Naticidae)
Polinices flemingiana Flamingo Moon Snail
common 1.5 – 3 cm
TURBAN SHELL (Turbinidae)
Turbo marmoratus Green Turban
15 – 20 mm
Mark Smith Nature Tours www.marksmithnaturetours.com
DISTORSIOS (Personidae)
TRITONS (Ranellidae)
FROG SHELLS (Bursidae)
Distorsio anus Common distorsio
common 4 – 8 cm
Cymatium (Ranularia) pyrum Pear Triton
common 7 – 10 cm
Bufonaria (Aspa) crumena Pouched Frog Shell
uncommon 5 – 9 cm
MUREX FAMILY (Muricidae)
VASE SHELL (Vasidae)
Chicoreus maurus Ramose Murex
5 – 9 cm
Haustellum haustellum Snipe's Bill Murex
common 6 – 10 cm
Vasum ceramicum Ceramic Vase
common 8 – 13 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
TUNS (Tonidae) HELMETS (Casidae)
Tonna allium Ribbed Tun
frequent 7 – 13 cm
Tonna perdix Partridge Tun
common 7 – 13 cm
Malea pomum Apple Tun
common 5 – 8 cm
Tonna canaliculata Channeled Tun
frequent 6 – 12 cm
Phalium glaucum Gray Bonnet
common 9 – 12 cm
Casmaria erinaceus Hedgehog Bonnet
frequent 4 – 7 cm
OLIVES (Olividae)
Oliva sericea Orange Mouth Olive
2 – 8 cm
Oliva bulbosa Inflated Olive
2 – 5 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
AUGER SHELLS (Terebridae)
Terebra (Acus) maculata Marlinspike Auger
common 13 – 25 cm
Terebra (Acus) dimidiate Orange Auger
common 3 – 13 cm
Terebra areolata (subulata) Dark Spotted Auger
common 11 – 18 cm
OYSTER FAMILY (Pteriidae) DONAX (Donacidae) ARK SHELLS (Arcidae)
Pinctada margaritifera Pearl Oyster
common 5 – 12 cm
Donax faba Pacific Bean Donax
1 – 2 cm
Andara antiquate Antique Ark
5 cm
Mark Smith Nature Tours www.marksmithnaturetours.com
MITRE SHELLS (Mitridae)
Mitra mitra Episcopal Mitre
frequent 3 – 17 cm
Mitra stictica Pontifical Mitre
uncommon 3 – 7 cm
Vexillum intermedium Intermediate Mitre
4 – 7 cm
Pterygia crenulata Crenulated Mitre
2 – 4 cm common
