. Bulletin - United States National Museum. Science. THE GEAPSOID CRABS OF AMERICA. 93 and dactylus of right second leg longer than in left leg, but not as long as in mature female. Abdomen not wider than in male, but margins slightly convex, sixth segment not contracted, extremity rounded. This form may be a distinct species. Measurements.—Female, Pearl Islands, length of carapace , width of same mm. Male, Pearl Islands, length of carapace , width of same mm. Habitat.—Lives in pearl oyster {Margaritophora firnbriata Dunker). Range.—La Paz, Lower California, Mexico (Smith) ; Mu


. Bulletin - United States National Museum. Science. THE GEAPSOID CRABS OF AMERICA. 93 and dactylus of right second leg longer than in left leg, but not as long as in mature female. Abdomen not wider than in male, but margins slightly convex, sixth segment not contracted, extremity rounded. This form may be a distinct species. Measurements.—Female, Pearl Islands, length of carapace , width of same mm. Male, Pearl Islands, length of carapace , width of same mm. Habitat.—Lives in pearl oyster {Margaritophora firnbriata Dunker). Range.—La Paz, Lower California, Mexico (Smith) ; Muleje Bay, Gulf of California (Holmes); Pearl Islands, Bay of Panama (Smith). PINNOTHERES RETICULATUS, new species. Plate 21, figs. 1 and 2. Type-locality.—Gulf of California: off San Josef Island, Lower California, Mexico; lat. 25° 02' 15'' K; long. 110° 43' 30" W.; 17 fathoms; S. Sh.; March 17, 1889; station 3002, Albatross; 1 female (18217). Diagnosis.—Female suborbicular, longer than broad; hands reticu- lated. Second leg longest, fourth dactylus longest, second and third propodus swollen at base. Description of female.—Carapace suborbicular, longer than broad, soft, papyraceous, slightly convex; gastric region bluntly elevated on median line, and separated by a broad depression from the branchial region; 4 pits form a quadrilateral in this depression; a lunate depression near hepatic margin. Front slightly convex in dorsal view, scarcely pro- jecting beyond curve of antero-lateral fig. 46.—pinnotheres reticulatds. margin. Eyes orbicular, large, visi- o^™k maxilliped of female holo- ble dorsally, corneae of moderate size. First two articles of palpus of outer maxilliped short and broad; dactylus curved and with subparallel margins and attached near proximal end of propodus which article it does not overreach. Chelipeds and legs short-pubescent, chelipeds long-hairy inside, small; manus subcylindrical, increasing a little distally, lower mar- gin straig


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience