. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMP:R10A. 511 83. Genus LEIDYA Cornalia and Panceri. Abdomen distinctly sojrmontod. PUninil lumelliv or lateral parts of the tirst five segments of the abdomen lanceolate, rtnely fringed. Legs of female terminate in a short, blunt claw. Exopods present and nearly etiiial on all seven paii's of legs. The pleopods are '' lanceolate and ; Male has the abdomen distincth" segmented. There are five pairs of simple rudimentary pleopods. Uropoda simple, in the form of two long appendages attached to the sixth al)do
. Bulletin - United States National Museum. Science. ISOPODS OF NORTH AMP:R10A. 511 83. Genus LEIDYA Cornalia and Panceri. Abdomen distinctly sojrmontod. PUninil lumelliv or lateral parts of the tirst five segments of the abdomen lanceolate, rtnely fringed. Legs of female terminate in a short, blunt claw. Exopods present and nearly etiiial on all seven paii's of legs. The pleopods are '' lanceolate and ; Male has the abdomen distincth" segmented. There are five pairs of simple rudimentary pleopods. Uropoda simple, in the form of two long appendages attached to the sixth al)dominal segment. Branchial parasites. LEIDYA DISTORTA (Leidy). Cepon (fistortus Leidy, Journ. Acad. Nat. Sci. Philu. (!'), Ill, 1855, p. 150, pi. xi, figs. 26-32. Lekhja disiorta Coknalia and Paxceri, Mem. R. Acad. Sci., Torino (2), XIX, 1858-1861, p. 114. Cepon diMurtus Hargek, Rep. U. S. Fish Coimii., Pt. 1, 1873, p. 573 (279); Proc. U. S. Nat. Mus., II, 1879, p. 157; Rep. U. S. Fish Comin., 1879, p. 157; Pt. 6, 1880, p. 311.—Kossmann, ZooI. Ergeb. einer Reise in die Kiist. des Rothen Meeres, III, Malacostraca, 1880, p. 122; Mittheil. aus der Zool. Station zu Neapel, III, 1881, first half, p. 182. I'Jiryxtis distortus Walz, Arbeit, aus d. Zoolog. Instit. d. l^nivers. Wien, IV, 1882, p. 59. Leidya distorta Giakd and Bonxier, Trav. du Labor, de Wimereux, V, 1887, p. (38, fig. 12. Cepon distortus Richardsox, Am. Xat., XXXIV, 1900, p. 309. Leidya distorta Richardson, Proc. U. S. Nat. Mus., XXIII, 1901, p. 579. Local it (/.—Atlantic City, New Jersey, in the branchial ^ ^ cavit}' of Ucapugllator. ''Female: Body com- pressed and distorted ovoid, white; abdominal scales com- pleteh' concealing the pink- ish white ova. Head prom- inent, provided with a pair of large oval disks situated posteriorly. ^louth minute, at the summit of a trilol)ate papilla. Antenna^ very .small and indistinct. Divisions of the thorax posteriorly strongly costate. Feet in seven pairs, curved forwai-d and d
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