My sincere thanks are due to Mr. Steve A. Glassell of the San Diego Society of Natural History for his descriptions of the 6 new species mentioned above, and for the identification of several puzzling series of specimens; to Mr. Templeton Crocker for giving me the opportunity of studying these interesting crustaceans in the field, and to Dr. William Beebe
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Jocelyn Crane (1937) studied this question.