The Stomatopoda dealt with here belong to the collections of the Rijksmuseum van Natuurlijke Historie at Leiden and of the Zoological Museum at Amsterdam; they were collected at the African Westcoast and in the Caribbean Sea. I wish to express here my sincere gratitude to Prof. Dr. H. Boschma at Leiden and to Prof. Dr. L. F. de Beaufort at Amsterdam, who kindly placed this material at my disposal. Some of the specimens are already mentioned by Rathbun (1919) in the "Rapport betreffende een voorloopig onderzoek naar den toestand van de Visscherij in de kolonie Curaçao". All the specimens are preserved in spirit. Squilla Fabr. Squilla empusa Say Squilla empusa Say, 1818, Journ. Acad Nat. Sci. Philad., vol. 1, p. 250. Squilla empusa H. Milne-Edwards, 1837, Hist. Nat. Crust., vol. 2, p. 525. Squilla empusa DeKay, 1844, Nat. Hist. New York, vol. 4, p 32, pl. 13 fig. 54. Squilla empusa White, 1847, List Crust. Brit. Mus., p. 84. Spuilla empusa Gibbes, 1850, Proc. Amer. Assoc., 3rd meeting, p. 199. Squilla empusa Coues & Yarrow, 1878, Proc. Acad. Nat. Sci. Philad., p. 298. Squilla empusa Miers, 1880, Ann. Mag. Nat. Hist., ser. 5 vol. 5, p. 23, pl. 2 fig. 1, 2. Squilla empusa Brooks, 1886, Report Challenger Exped., vol. 16, p. 25, pl. 1 fig. 4, 5; pl. 2 fig. 7. Squilla empusa Bigelow, 1893, Johns Hopkins Univ. Circ., no. 106, p. 102. Squilla empusa Sharp, 1893, Proc. Acad. Nat. Sci. Philad., p. 107. Squilla empusa Bigelow, 1894, Proc. U. S. Nat. Mus., vol. 17, p. 525.