Preliminary Revision of the Genera Pseudosquilla and Lysiosquilla with Descriptions of Six New Genera (Crustacea: Stomatopoda)

Two of the eleven currently recognized genera of stomatopod crustaceans, Pseudosquilla Dana, 1852 and Lysiosquilla Dana, 1852, are shown to be catchalls of unrelated species. Seven genera are recognized in the Pseudosquilla complex, including two new genera, Eurysquilla and Eurysquilloides. Other genera considered to be related to Pseudosquilla are Pseudosquillopsis Serène, 1962, Parasquilla Manning, 1961, Manningia Serène, 1962, and Coronidopsis Hansen, 1926. Six genera are recognized in the Lysiosquilla complex, of which three, Nannosquilla, Acanthosquilla, and Heterosquilla, are described as new. Coronis Desmarest, 1823, is recognized, and Coronida Brooks, 1886, is believed to be related to Lysiosquilla, which is restricted to L. maculata and similar species. Bathysquilla is described and is shown to be unrelated to the Lysiosquilla complex. Diagnoses are given for each of these 14 genera, and all described species in each of the genera are listed.