. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 129 "Second anteiina' long- and .slender, when placed closo to sides of body reaching- to al)ont anterior margin of telson; peduncle four jointed, joints incrc^asing gradually in length and slenderness, second joint furnished on distal external angle with four or five setic; flagellum with about eighteen joints, which are longest in its middle. "Epistome slcMider. exi)anded in front and emarginate, reacliing to about the le\-el of frontal margin of head, ])ut not connected with it. "Mandible with trid
. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 129 "Second anteiina' long- and .slender, when placed closo to sides of body reaching- to al)ont anterior margin of telson; peduncle four jointed, joints incrc^asing gradually in length and slenderness, second joint furnished on distal external angle with four or five setic; flagellum with about eighteen joints, which are longest in its middle. "Epistome slcMider. exi)anded in front and emarginate, reacliing to about the le\-el of frontal margin of head, ])ut not connected with it. "Mandible with tridentate cutting edge, movable pectinate ap- pendage and three-jointed i)al]). in general resembling this organ in Fig. lUi.—BRANCHrRopis littoralis (After Moore), n, of head below. /<, First ANTENKA. c, Second d, (Jeneral figire. e, Mandible. ./", Foirth leg. (j, Maxil- LiPED. /(, First leg. /, Seventh leg. "Maxillipeds two jointed, the basal joint long, somewhat trans- versely of the head; the second joint short and armed with a few hairs distally. "Thoracic limbs graduall}- increasing in length posteriorly. First limb with second joint longest, the third, fourth, and fifth successively shorter, the sixth joint as long as third, and pectinate by a series of spines, the last one stoutest, and the seventh not forming with the sixth a subchelate hand, as in Anuropus. "The posterior l)order of the limb is furnished with spines and seta'. Second and third pairs subsimilar with the fifth joint larger. Fourth to seventh pairs backwardly directed, and becoming success- ively broader and flatter, resembling- the posterior liml)s of Eurydtce^ 28589—05 9. 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; U
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