Sander Rang or Paul Charles Leonard Alexander Rang (1793, Utrecht -1844, Mayotte) was a French conchologist and interpreter of Arabic texts. He was, in 1816, one of the survivors of the sinking of the frigate Medusa, on which he was an ensign. He spent a good part of his life in La Rochelle, where he published his early zoological observations, in particular in the bulletins of the Society of Natural Sciences of Charente-Maritimes.In 1841 Rang was one of the founding members of the Société des Amis des Arts now the Musée des Beaux-Arts de La Rochelle.He specialised in marine fauna notably in sea hares, cephalopods and other molluscs and on the heterogenous group known as zoophytes. Sander Rang described many new mollusc species including the sea hares Aplysia dactylomela, Dolabrifera dolabrifera, the cuttlefish Sepia hierredda and the land snails Striosubulina striatella, Pleurodonte desidens and Opeas hannense.