Limnaeus

Limnaeus, Limnaios, Limnaea, Limnaee, Limnetes, or Limnagenes, meaning in Greek "inhabiting or born in a lake or marsh".

Greek Mythology

It is an ancient Greek surname of several divinities who were believed either to have sprung from a lake or had their temples near a lake. Instances are, Dionysus at Athens, and Artemis at Sicyon, near Epidaurus, on the frontiers between Laconia and Messenia, near Calamae, Patrae; it is also used as a surname of nymphs that dwell in lakes or marshes.
Limnaee was the Naiad-nymph of a lake in India and daughter of the river Ganges. She had a son named Athis.

Limnaeus or Limnaios is also used as a name:

Limnaeus, a general of Alexander the Great, in the battle of Malli
Limnaios son of Harpalos, a land-owner; he was given estates in Chalcidice by king Lysimachus
Limnaios and Lysanias helped Rhodes after 226 BC earthquake
Limnaeus, an ambassador of Philip V of Macedon
Saint Limnaeus, disciple of Saint Thalassius, an hermit in Syria. Theodoret records that Limnaeus had been living in this way for thirty-eight years.
Johannes Limnaeus German professor who wrote a work entitled "Jus publicum Imperii Romano-Germanici"
Georg Limnaeus German professor of mathematics in Jena
Toula Limnaios, a Greek choreographer