. Allan Hancock Pacific expeditions. [Reports]. Scientific expeditions. PART 1 GARTH : PACIFIC OXYRHYNCHA 33 Chelipeds stout, especially in male; palms swollen, fingers nearly horizontal, gaping slightly in basal half, prehensile margins denticulater a tooth on the dactyl within the gape. Legs slender, diminishing in length from the first to the fourth pair, the longer pairs exceeding the chelipeds ; dactyli flattened, not very slender, moderately curved. Abdomen of male constricted between the sixth and seventh seg- ments, the seventh segment subtriangular. (Rathbun, 1925) Male first pleopod
. Allan Hancock Pacific expeditions. [Reports]. Scientific expeditions. PART 1 GARTH : PACIFIC OXYRHYNCHA 33 Chelipeds stout, especially in male; palms swollen, fingers nearly horizontal, gaping slightly in basal half, prehensile margins denticulater a tooth on the dactyl within the gape. Legs slender, diminishing in length from the first to the fourth pair, the longer pairs exceeding the chelipeds ; dactyli flattened, not very slender, moderately curved. Abdomen of male constricted between the sixth and seventh seg- ments, the seventh segment subtriangular. (Rathbun, 1925) Male first pleopod bent at an angle greater than 90° and in addition spirally twisted. About two dozen short setae arranged in two or three linear rows subterminally. Terminal aperture slightly eccentric. Bulbous base excavated and grooved abdominally to receive the diminutive second pleopod. [Compare Gordon's (1940) figures of Elamena species and of Halicarcinus whitei (Miers).]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Allan Hancock Foundation. Los Angeles, University of Southern California Press
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