Thaumastocheles Wood-Mason, 1874Thaumastochelopsis Bruce, 1988 The family Thaumastochelidae contains five known species of deep-sea lobsters, three in the genus Thaumastocheles, and two in the genus Thaumastochelopsis.

The fifth species was discovered in the ten–year Census of Marine Life.

[1][2] These creatures are distinguished from other clawed lobsters by their blindness (an adaptation to deep-sea life), and by their single elongated, spiny chela.

[3] The family Thaumastochelidae is now more usually subsumed into the lobster family Nephropidae.

[4] The five species are as follows: