Key to genera of the family PARASCELIDAE

1. Gnathopods 1 & 2 simple............................................................................... 2

- Gnathopod 1 simple, or chelate. Gnathopod 2 chelate......................................................... 3

2. Pereopod 6; basis without fissure....................................................... Parascelus Claus, 1879

- Pereopod 6; basis with fissure........................................................... Thyropus Dana, 1852

3. Gnathopod 1 simple. Pereopod 6; basis with long fissure.................................. Schizoscelus Claus, 1879

- Gnathopod 1 chelate, similar to G2. Pereopod 6; basis without fissure........................... Euscelus Claus, 1879