. Bulletin - United States National Museum. Science. 512 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM Female.—Head short and wide and inclined dorsally at an angle of 45° to the trunk axis; a narrow dorsal carapace divided length- wise on the midline. Trunk pear shaped, narrowed into a long neck anteriorly, swollen and depressed posteriorly; posterior processes cylindrical, plump, and half as long as the ovisacs. First antennae 2-segmented; second antennae biramose, both rami 1-segmented, the endoj)od larger than the exopod; second maxillae entirely separate, two-fifths as long as the trunk, e
. Bulletin - United States National Museum. Science. 512 BULLETIN 15 8, UNITED STATES NATIONAL MUSEUM Female.—Head short and wide and inclined dorsally at an angle of 45° to the trunk axis; a narrow dorsal carapace divided length- wise on the midline. Trunk pear shaped, narrowed into a long neck anteriorly, swollen and depressed posteriorly; posterior processes cylindrical, plump, and half as long as the ovisacs. First antennae 2-segmented; second antennae biramose, both rami 1-segmented, the endoj)od larger than the exopod; second maxillae entirely separate, two-fifths as long as the trunk, each enlarged at its tip into a crescent or semicircle; maxillipeds with slender terminal claws. Total length, mm. Male.—Head conical, considerably swollen and gibbous posteriorly, the mouth at the extreme anterior end and terminal, the part bearing the second maxillae and maxillipeds near the posterior end and sepa- rated from the rest of the head by a groove. Trunk distinctly 4-seg- mented, the first two segments thoracic; the third, the genital segment,. 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.
Size: 1425px × 1753px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience
