lobular ornamentation characteristic of Ceratites. The first specimens of Choristoceras Marshi were brought to Vienna by Mr. O. C. Marsh, F.G.S., of Newhaven; subsequently Prof. Suess received a greater number of them; and lately Mr. Hinterhuber, an Imperial Mining Engineer entrusted by the Imperial Geological Institute with the task of examining the locality of the specimens found in Austria, ascertained their occurrence in a stratum resting on undoubted Kössen strata and overlain by "Adneth" (Liassic) limestones. Similar forms occur among the specimens referred to " Crioceras" from the Bavarian Alps, described by MM. Gümbel and Schafhäutl; but their determination must remain uncertain until their lobular ornamentation becomes better known. [COUNT M.] 66 On REMAINS of the MARMOT (Arctomys marmota, Gmel.) in STYRIA. [Proceed. Imp. Acad. Vienna, 8th and 22nd March, 1866. THE remains of this animal, which has never been known in Styria, as far as historical records or traditions go, consist of a jaw, found at the junction of the Parschlug and Mürz valleys, among some indeterminable fragments of bones; it was recognized as belonging to the species in question by Prof. Hyrtl (see Imp. Geol. Instit., Annals, xiv. 1864, Proceedings, p. 33). In the beginning of 1866, Prof. Oscar Schmidt discovered again, in the neighbourhood of Grätz, about two hundred feet above the river Mürz, an old den of Marmots, with the skeletons of four individuals, belonging to three different generations. These animals must be supposed to have lived in Styria during a portion of the Diluvial period, when the extension of glaciers in the higher Alpine regions drove away the Alpine flora and fauna to seek shelter and food in lower, and consequently more congenial, regions. [COUNT M.] The GASTEROPODS of ST. CASSIAN. By Dr. LAUBE. THE Gasteropod-fauna of St. Cassian possesses many species analogous to forms found in the Carboniferous Limestone, and is particularly . interesting as being a "Limit-fauna," comprehending representatives of a number of undoubtedly Palæozoic genera associated with others whose full development took place afterwards in the course of the Mesozoic Period; and the number of species occurring also in other localities is but small. The types of two new genera have lately been discovered among the Pectinibranchiate Gasteropods of St. Cassian, namely (1) Euchrysalis, having a chrysalid-like form, with smooth whorls, long-slitted mouth, and very prominent lips, and (2) Ptychostoma, resembling Pleurotoma by the peculiar slit on its mouth and by the lines of growth taking the form of the letter V on the sides of its smooth polished whorls. Dr. Laube describes 117 species, among which 22 are new. [COUNT M.] ALPHABETICAL INDEX TO THE PROCEEDINGS OF THE GEOLOGICAL SOCIETY. [The fossils referred to are described, and those of which the names are printed Abbey Wood, section at Plumstead Common and, 435. Aberdeen, dead littoral shells in the Acanthodes from the coal-shales of chmodus, diagrammatic restoration Affinities of Eozoon Canadense, Dr. W. of Platysomus and allied genera, Agnostus Morei, 487. Albany and Boston conglomerate, Aldborough, section from Orford to heterophylla, 157. lonchitica, 157. muricata, 157. nervosa, 157. VOL. XXII. Anatina præcursor, var. Pylensis, 88. Angular detritus of Porlock Bay, 6. Annelid-tubes in the Laurentian rocks Anniversary Address of the President, , sp., 150. squamosa, 150. Antigua, 574. Antiquity of Man in Ecuador, 567. Araucarites gracilis, 146. Arca consobrina, 293. - filicata, 583. inæquilateralis, 293. Arca Noæ, 283. Ardennais, cailloux, 247. Ardmore and Youghal trough, lower Arrigle Brook, section from Knockto- Asphaltic bed, Trinidad, foraminifera Asterophyllites in the coal-formations trinervis, 152. Australia. Petroleum coal-seams in Babbacombe to Watcombe,coast-section Baggy Point, 346. Ballea across Myrtle Hill, section from, Ballinhassig, section near, 337. Bantry Bay Trough, 341. shells from the drift of, 477. Barus and Reshpur, Kashmere, section Basement-bed of the London Clay, 412. mines of the State of Michigan, 448. Belgium, Mr. R. A. C. Godwin- Berehaven Promontory, 343. Bermuda, Tertiary deposits of, 579. Bluntisham, list of fossils from the Bolderberg, Tertiary deposits of the, Bones from the drift of Barnwell, Bos Urus, 391. Boston conglomerate, Michigan, sec- Boulder clay of the Fenland, 479. Bournda, New South Wales, oil-bear- Brachiopoda collected by Capt. Godwin- Brine, Commander L., on the recent Bristow, Mr. H. W., on supposed re- mains of the Crag on the North Brodie, The Rev. P. B., on a section Cailloux Ardennais, 247. Caithness, list of Mollusca whose shells Calamites in the coal-formations of Cape Clear, 340. Carboniferous Brachiopoda from the Carboniferous rocks of the valley of Suttonensis, 86. Cardita? rhomboidalis, 87. Cardium castum, 582. inconspicuum, 293. lingua-leonis, 293. Caribean area, paleontology of the, Carpenter, Dr. W. B., on the struc- Carrick, Ayrshire, metamorphic Lower Cassidaria sublevigata, 287. Cattle, relation of Bos urus to the do- Chalk, junction of the Thanet Sand Chama arcinella, 294. Chambers of Eozoon Canadense, 209. Charcoal, tissues in Mineral, 140. and fissures of Malta, Dr. A. Leith Chillesford beds, list of shells from Chillesford Clay, section showing the Chillesford Clay or Loam, Rev. O. Chonetes? Austeniana, 44. Hardrensis, var. Thibetensis, 36. Cidaris Melitensis, 299. Clarke, The Rev. W. B., on the occur Colchester, section in a ditch on the Colo and Grose rivers, New South Comeragh Mountains, section across Coniferous trees in the coal-forma- mation of the South Joggins, 127. 509. simplex, 164. Cork and Midleton trough, lower lime- Crab, from the Forest Marble, Malmes- bury, Wilts, Mr. H. Woodward on Crag-sand and shingle capping a hill Cretaceous (?) Brachiopoda from the Cycles, geological, 101. Cyclopteris (Aneimites) Acadica, 153. fimbriata, 154. heterophylla, 153. hispida, 145. is) ingens, 154. oblata, 154. (Neuropteris) obliqua, 154. oblongifolia, 154. Cyclostrema bicarinata, 291. Cyperites, sp., 149. Cytherea (Circe) carbasea, 292. · (Callista) planivieta, 292. antiquius, 146. materiarium, 145. Daresbury, Cheshire, Cheirotherian Davidson, T., Esq., on the Brachio- poda collected in Thibet and Kash- Dawson, R., Esq., on the occurrence Decigala, M., on the recent volcanic |