Key to species of Hallicoccus gen. nov. based on adult females

1. Submarginal dorsal tubercles present; preopercular pores absent; most stigmatic spines bulbous............... ............................................................................................... Hallicoccus lomagundiae (Hall), comb. nov.

– Submarginal dorsal tubercles absent; small preopercular pores present; all stigmatic spines sharply spinose .......................................................................................... Hallicoccus obunca (De Lotto), comb. nov.