OCR Text |
Show 282 ON MYRIOPODA FROM DUKE-OF-YORK ISLAND. [Mar. 20, 2. On the Myriopoda obtained by the Rev. G. Brown in Duke-of-York Island. By A R T H U R GARDINER BUTLER, F.L.S., F.Z.S., Assistant, Zoological Department, British Museum. [Eeceived March 2, 1877.] Only two species of Myriopods were sent home, both of them allied to, but distinct from, previously described species. CHILOPODA. HETEROSTOMA, Newport. HETEROSTOMA BROWNI, n. sp. Above brownish olivaceous, with violet reflections, hind borders of the segments dark greenish; antennae and legs (excepting the femoral and sometimes the tarsal joints of young examples) green ; body below testaceous; anal appendices tawny ; labial teeth eight, smooth, acutely conical, the central pair on each side very powerful ; basilar joint of posterior legs somewhat depressed (not carinated), Heterostoma browni. with five short acute spines on the supero-interior margin and six on the inferior surface ; lateral anal appendices long (9 millimetres), cylindrical towards the base, acuminate and bidentate at the tip, coarsely punctured, with two minute denticles above near the tip, and two others near the centre of the infero-exterior margin. Length of adult specimen, exclusive of posterior legs, 4 inches; length of posterior legs 1 inch. Allied to H. sulcidens of Newport from Paramatta, but with the segments more parallel, the spines on the posterior pair of legs shorter and placed at more regular intervals from one another, the lateral anal appendices rather longer and considerably less spinose, and with eight instead of six teeth on the lower lip. |