Lambis truncata
Lambis truncata, common name the giant spider conch, is a species of sea snail, a marine gastropod mollusc in the family Strombidae, the true conchs.
Subspecies
[Image:Lambis truncata truncata 37.jpg|150px|thumb|left|A shell of Lambis truncata truncata]Image:Lambis truncata [sebae 28a.jpg|150px|thumb|left|A shell of Lambis truncata sebae]
Subspecies of Lambis truncata include:Lambis truncata truncata Lambis truncata sebae
Lambis truncata truncata has a flat apex, while the apex of Lambis truncata sebae is more pointed.
Description
[Image:Lambis truncata Kiener1843.jpg|thumb|left|A colored drawing of Lambis truncata from Kiener, 1843, depicting both the shell and soft parts]Lambis truncata is the largest and heaviest of spider shells, up to 40 cm. Lambis truncata is similar to Lambis lambis but with a more squarish outline. Younger shells are creamy white; columella and lip usually mauve brown when older.