Key to the genera of the family Normanellidae

1a. P1 endopod absent......................................................................... Pseudocletodes

1b. P1 endopod present, two-segmented...................................................................... 2

2a. P1 endopod prehensile; P1 ENP1 elongate bearing inner seta, ENP2 short; male P5 with two elements on endopodal lobe.. 3

2b. P1 endopod not prehensile; P1 ENP1 as long as ENP2, and without inner seta; male P5 with four elements on endopodal lobe........................................................................................... Paranaiara

3a. Antennary exopod with three setae; maxillulary basis with one endite; male P6 with two setae; cephalothorax without areolated pattern...................................................................................... Sagamiella

3b. Antennary exopod with four setae; maxillulary basis bearing two endites; male P6 with three setae; cephalothorax with areolated pattern.............................................................................................. 4

4a. P1 EXP3 with five elements; P2–P4 EXP3 with three outer spines..................................... .. Normanella

4b. P1 EXP3 with four elements; P2–P4 EXP3 with two outer spines................................. Arktourella gen. nov.