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Show 1886.] ON THE SO-CALLED PELVISTERNUM. 163 1. ENDOC<ELUS ORHICULARIS. Rotundatus, ferrugineus ; elytris convexis, fortiter parce punctatis, setulosis, marginibus latins explanatis, apice subacuminato; thoracis margine elevato deplanato, basi sulcis duobus Antennarum clava fusca. Long. \\ millim. Hab. Ceylon (Lewis). Orbicular, elytra subglobularly convex, with their lateral margin much expanded in the middle, but the widened rim vanishing in the apex, where they are conjointly deflexed and acuminate ; their disk is evenly and strongly punctured, the margins less distinctly; the extreme limb of the expanded margin is itself finely reflexed. The head is exserted, with small prominent coarsely granulated eyes. The maxillary palpi have their apical joint subulate. The thorax is short, narrowed in front, with the margin raised, thickened and flattened as in Stenotarsus, the front angles being rounded in to form the emarginate opening for the head, than which it is much wider; the base is narrower than the elytra at their base, and is furnished with two very deeply impressed punctiform sulci, which are about halfway between the centre and the hind angle, on each side. One specimen, taken at Dickoya. EXPLANATION OP PLATE XVII. Fig. 1. Cymones cowani, p. 158. 2. Panomoea cingalensis, p. 162. 3. Cymones helopioides, p. 158. 4. sharpi, p. 157. 5. Spathomeles? inflatus, p. 154. 6. Stictomela chrysomeloides, p. 156. 7. Epopterus lineoguttatus, p. 161. 8. ephippiger, p. 160. 9. eganus, p. 160. 2. O n the so-called Pelvisternum of certain Vertebrates. By R. J. A N D E R S O N , M.D., M.A., Professor of Natural History, Queen's College, Galway. [Eeceived March 1, 1886.] Prof. Paul Albrecht in 1883 described1 an interpubic bone which he found present in Dasypus sexcinctus, Bradypus cuculliger, and Cholcepus didactylus. He compares the symphysial cartilage found in many animals and this bone with the parts of the sternum, shoulder-girdle, and os hyoides, and gives several very instructive and clear figures of specimens in the museums at Berlin and Konigs-berg. The figures of the Lacertilian pelves are copied from the papers of Profs. Huxley and Wiedersheim, and the scheme of homology he represents in a table at the end of his note. 1 Bull. d. l'Acadeniie royale de Belgique, nos. 9-10. |
