66 Mr. G. M. Thomson on a ocliraceous, not piceous ; membrane reaching tlie base of tlie lif'tli abdominal segment ; intermediate and posterior femora longer than the hemelytra, but shorter than the tibife ; pronotum about half the length of abdomen ; abdominal appendages mutilated. Long.j exol. abdom. append., 35 mm. Bab. Natal : Durban (Brit. Mus.). Ranatra sordidula, Ranatra sordidula, Dohrn, Stett. ent. Zeit. xxi. p. 409 (1860). Ranatra unicolor, Scott, Ann. & Mag. Nat. Hist. (4) xiv. p. 462 (1874). Synonymic Note. Philiajactator. Philiajactator, StSl, CEfv. Vet.-Ak. Forli. 1854, p. 231. Philia fenestrata, Bredd. Abli. Ges. Halle, xxiv. p. 35 (1901). Mr. Kirkaldy showed me a cotype of Breddin's species. XI. — A new Fannly of Crustacea Isopoda. By George M. Thomson, F.L.S. [Plate I.] In the ' Mission de I'lle Campbell,-' published in 1885, the late Dr. Filhol briefly described (p. 492} an Isopod obtained at Stewart Island as Idotea Stewarti, and figured it at pi. liii. figs. 8 and 9. Tiie following is a translation of the very brief description : — "Inner antennas very short, 4-jointed; terminal joint elongated, slightly enlarged in the middle. Its apex reaches the end o£ the second joint of the outer antennae. The latter are 5-jointed ; their lower margin is I'urnished with numerous harsh hairs. The three first pairs of feet increase in size posteriorly ; their third, fourth, and fifth joints are furnished with numerous hairs on their lower margins; the claws are long, slender, recurved, and acute. The last segment is elongated and rounded at its apex.^'' Among some Crustacea received from my friend Dr. Chilton, from Mr. H. Drew of Wanganui, were two dried specimens of this species. In 1900; during trawling-operations on the east coast of
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