. Bulletin - United States National Museum. Science. FiGORB 228.—SappMrina nigromaculata: a. Female, dorsal (drawn by Rath- bun) ; b, male, dorsal; c, female, second antenna; d, female, fourth leg abruptly narrowed to half the width of the fourth; caudal rami twice as long as wide. Fourth segment of second antenna three times as long as the third segment, the two together the same length as the second segment. The endopod of the fourth leg not half so long as the exopod, its two apical spines equal and very slender. Total length, mm. Male.—Head twice as wide as long; corneal lenses visib
. Bulletin - United States National Museum. Science. FiGORB 228.—SappMrina nigromaculata: a. Female, dorsal (drawn by Rath- bun) ; b, male, dorsal; c, female, second antenna; d, female, fourth leg abruptly narrowed to half the width of the fourth; caudal rami twice as long as wide. Fourth segment of second antenna three times as long as the third segment, the two together the same length as the second segment. The endopod of the fourth leg not half so long as the exopod, its two apical spines equal and very slender. Total length, mm. Male.—Head twice as wide as long; corneal lenses visible on the frontal margin in dorsal view. The two terminal segments of the second antenna are together about one-fourth longer than the second segment; the terminal segment of the second endopod has two lanceo- late flanged spines, one awl-shaped dentate spine, and two small spines around the apex. Total length, 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 United States National Museum; Smithsonian Institution; United States. Dept. of the Interior. Washington : Smithsonian Institution Press, [etc. ]; for sale by the Supt. of Docs. , U. S. Govt Print. Off.
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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
