Xanthodaphne argeta is a species of sea snail, a marine gastropod mollusk in the family Raphitomidae.

(Original description) The polished shell is short-fusiform, snow white, eight- whorled.

The spiral sculpture consists of obscure almost microscopic striae and a few close set extremely fine threads on the siphonal canal.

The anal notch is very shallow and rounded; leaving only a faint slightly flattened fasciole.

The siphonal canal is short, very wide and hardly differentiated [2] This marine species was found near the Galapagos Islands at a depth of 1485 m.