. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 229^ ANILOCRA PLEBIA Schioedte and Meinert. Anilocra pli'hia HcnuEDTK and Mkinert, Naturhistorit^k Tidpskrift (3), XIII, 1881-1883, pp. 145-146, pi. x, (ifr. 8.—Richakdson, Proc. U. S. Nat. Mus., XXIII, 1901, p. 528. Localitiei^.—Shores of Costa Rica; Central America. Body elliptical, two or three times lono-er than wide (9:4). Head moderately laroe, .subtrianoular, one-third as wide as the fourth thoracic seg-ment, much wider than lono-. ver^' slightly immersed, the front rounded in a circle. Eyes small, suboval, t
. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMERICA. 229^ ANILOCRA PLEBIA Schioedte and Meinert. Anilocra pli'hia HcnuEDTK and Mkinert, Naturhistorit^k Tidpskrift (3), XIII, 1881-1883, pp. 145-146, pi. x, (ifr. 8.—Richakdson, Proc. U. S. Nat. Mus., XXIII, 1901, p. 528. Localitiei^.—Shores of Costa Rica; Central America. Body elliptical, two or three times lono-er than wide (9:4). Head moderately laroe, .subtrianoular, one-third as wide as the fourth thoracic seg-ment, much wider than lono-. ver^' slightly immersed, the front rounded in a circle. Eyes small, suboval, tumid, .separated by a distance of more than half the width of the head. The iirst pair of antennae are straight, rather compressed, and extend witli the two last articles to the anterior angle of the first thoracic segment and to the sixth article of the second pair of aiitiMuue; they are composed of eight articles. The second pair of antennae are rather com- [)ressed, are a little narrower than the first pair of antenna\ and do not reach the posterior angle of the first thoracic segment; they are composed of nine articles. The anterior margin of the first thoracic seg- ment is manifestl}' trisiimated, the lateral sinuses being scarceh^ deeper than the median sinus. The posterior angles of the first six segments of the thorax are scarcely or not at all produced, being rounded or obtuse. The posterior angles of the seventh segment are a little more produced and rounded. The angles of the seventh segment do not reach by a small distance the posterior angle of the first segment of the abdomen. The epimera are projecting. The first three are rather wide or rather narrow, decreasing gradually in width, with the posterior mar- gin widely rounded. The three posterior ones are narrow, subequal in width, with the posterior margin narrow!}" rounded. The epimera of the first and second pairs extend almost to tlie posterior angh^ of the segment; those of the third pair do not reac
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