fiiiiiiiii "'Am mwm PROCEEDINGS llojjiHl ^ocieto of §ii1oriii VOL. XVI. (New Skries). PART I. Ediled under the Authority oj the Council. ISSUED SEPTEMBER, lyoj. (^Cuntaiiting Papers read before the Sacietv diiriiii; the months of December, ig02, March, April, May, June, July, igo^. WW. Al riUjKS Ul' IHH; SKVKKAI- I'ATKKS AHK HKVKHALLY KKSl'ilNSlHtK KUK IIIK SOUNDNESS UF TIIK OIMMONS UIVKN AM) FOR IIIK ACtUllAUY OF TIIK STATKMENTS MAUK TllKKElN. MELBOURNE : EOKD & SON, FKIN'I'EKS, DKUMMOND STKEET, CAliLTON. AGKNTS TO THH SOCIKTY : WILLIAMS & NOKGATE, 14 HENRIETTA STREET, CUVENT UAKUEN, LONDON. To whom all coiiinuinications for traiisinissioii to the Royal Society of Victoria, from all parts of Eurojie, shoulfi be sent. 1U03. CONTENTS OF VOLUME XVI,, Pt, I. Art. I. — Rocks and Ore Occurrences at Bethanga and the Lower Mitta Mitta. By Henry C. Jenkins. (Plate I.) ... ... ... ... ... 1 II. — Geology of the Valley of the Lower Mitchell River. By John Dennant, F.Gt.S., F.C.S., and Donald Clakk, B.C.E. (Plates II.-VIII.) ... ... 12 III. — On certain Conglomerates near Sydenham. By T. S. Hart, M.A., F.G.S. (Plate IX.) ... 48 IV. — On the Occurrence of Striated Boulders in the Permo- Carboniferous Rocks near the mouth of the Shoalhaven River, New South Wales. By E. O. Thielf ... ... ... ... 57 V. — New or Little-kno^\'n Victorian Fossils in the National Museum, Melbourne. Part II. — Some Silurian Molluscoidea. By Frederick Chapman, A.L.S., &c. (Plates X., XI., and XII.) ... ... 60 VI. — On Some Australian Tertiary Pleurotomarias. By G. B. Pritchard. (Plates XIII., XIV.) .. 83 VII. — On Some New Sjjecies of Victorian Mollusca, No. 6. By G. B. Pritchard and J. H. Gatlife. (Plate XV.) . ... 92^ VIII. — Catalogue of the Marine Shells of Victoria. — Part VII. By G. B. Pritchard and J. H. Gatliff ... ... 'M IX. — Further Descriptions of the Tertiary Polyzoa of Victoria. — Part IX. By C. M. Maplestone. (Plates XVI., XVir.) ... ... ... UO X. — Glacial Deposits at Taminick, Glenrowan and Greta, North-Eastern District, Victoria. By A. E. KiTSON, F.G.S. ... ... ... ... 148 XI. — Volcanic Necks at Anderson's Inlet, South Gippsland, Victoria. By A. E. Kitson, F.G.S. (Plates XVIIL, XIX.) ... ... ... 154 XII. — Some Features in the Geography of North- Western Tasmania. By J. W. Gregory, DSc, F.K.S. (Plates XX., XXI.) ... ... ... ... 177 Art. 1. — Rocks and Ore Occurrences at Bethanga and the Loiver Mitta Mitta. /$j^?A^ By henry C. JENKINS (Wh. Sc, A.E.S.M., Assoc. M. Inst. C.E.). (With Plate I.). [Eead 11th December, 1902.] The author has had occasion recently to visit several places along the Mitta Mitta Valley, including Bethanga, Snowy Creek, Lightning Creek, Mount Elmo and Sandy Creek, and as there does not appear to be a large amount published as regards the character of the district beyond the somewhat general and comprehensive description that it is a metamorphic area, he thought it would be of interest to describe, as far as a fortnight's inspection would justify, some of the rocks there, and more par- ticularly tlie mode of occurrence of the minerals of economic importance. Although the greater part of the journey was over ground marked upon the Victoi-ian Geological Map of 1902 as being metamorphic, yet the line also passes over ground marked lower Silurian, between Eskdale and Lightning Creek, and of granitic rocks at Granite Flat, and its peak. A rapid journey over the so-called lower silurian exposure would not justify more than the suggestion, yet it would be desirable to raise the question as to the value of the precise geological evidence upon which the distinction has been made between the rocks at this particular part of the country and some of those of the part marked metamorphic, the resemblance being so close that in the absence of definite paUeontological evidence, or of marked uncon- formity it is doui)tful whether a distinction is legitimate. Any such evidence as the inclusion of the materials of one bed in. another would be quite inadmissable in the case at Snowy Creek, where the beds so closely resemble one another. The author will also submit some reasons for viewing tlie line through Bethanga 2 Proceedings of the Royal Society of Victoria. and the head of Little Snowy Creek, as being an axis of very old rocks, such as would make the exposure from there down to as far as the so-called hornfelds at Ensay in Gippsland, to be really that of the oldest rocks to be seen in Victoria.^ There are also some unmarked exposures of holocystalline rocks along the Snowy Creek, one at about seven miles to the southward of Granite Flat is of considerable size, and larger than some exposures that are marked as being granitic. But these holocrystalline rocks of the district have in most cases, even where originally intrusive, undoubtedly undergone great changes just as have the schists, and all these cases illustrate the difficul- ties arising out of the present official nomenclature. The holo- crystalline rocks on the western bank of the Mitta Mitta, about six miles southward from Tallangatta, form one case in point, and those much to the southward in the Ensay district furnish another case. The occurrence of gold at Lightning Creek, at the head of the Snowy Creek toward Mount AVills, presents an interest from the fact that rich alluvial was found in the creek in the early gold digging days, and that the diggers, reasoning from the analogies elsewhere, made many attempts to find the lode from which it had been supposed to have been shed. The country is, however, of the heaviest character for prospecting ; with steep hillsides, narrow rapid creeks and much timber and scrub, and up to the present date that lode has never been found. The rocks are silky micaceous schists and quartzites, and it does not seem necessary to postulate the presence of a large lode to account for the coarse alluvial gold. Quite recently Mr. J. F. McCann has obtained much rich coarse gold from a spot that years ago had been cleared of its timber and had had the trestles of a large flume erected upon it by men who were prospectors by instinct, without the gold being seen at the time. This was on a spur facing to the south west at the junction of the Lightning and Snowy Creeks, and the deposit of gold was in a thin irregular seam of quartz, parallel to the ancient bedding planes of the present schists that are now nearly upright and lying about 20 degrees west of true 1 The author would refer to the highly interesting and important work upon the rocks at Ensay and Omeo, by Mr. A. W. Howitt, and published in the Proceedings of the Boyal Society of Victoria, and in the Victorian Departmental publications. Rocks and Ore Occurrences. 3 noi'th. From one pit only twenty feet deep and about 7 feet long he obtained 100 ounces of gold from specimen quartz, and it is easy to see that by the denudation of a band of rock such as this lying nearly parallel to the avei'age trend of the valley, these little pockets, even at some distance apart, would be ample to supply the alluvial gold. The granitic area at Granite Flat is really one of a quartz diorite. The rock slide shows plagioclase felspar, green and brown hornblende, some mica in places, and pegmatitic quartz full of solid inclusions that are very minute and may be rutile. The area is traversed by fissure veins that seem generally to be small. Some of those that run in an east and west direction have copper pyrites as a lode filling, one that seemed larger than the average (i.e. that on the Empress of India lease) had copper pyrites, iron pyrites, quartz, carbonate of lime and gold, and a copper sulphide much resembling " glance " in appearance but not so rich as that mineral in copper. A full discussion of the occur- rences would be, however, somewhat outside of the scope of this paper. The area that is undoubtedly of metamorphic rocks includes the Little 8nowy Creek. In this area there is a strip of country from Mount Elmo through Scrubby Creek, Lockhart's Gap and Bethanga, along which, at greater or less intervals, rich gold deposits are found. The deposits are not always in large lodes, and occasionally they are not in well marked ones, but this latter is the exception. The deposits ai-e undoubtedly valuable from an economic point of view as well as interesting from the scientific one. Eastward of this series is one of tin occurrences that I have not been able personally to see tn situ., but they appear to extend from a point a few miles eastward of Mount Elmo, to across the Mitta Mitta at Eskdale, and thence to Tallangatta and to the Murray River. The specimens that have reached me are all of greisen with cassiterite in very coarse crystals. The occurrences are doubtless isolated ones and so far have not been " proved " from an economic point of view, but this by no means indicates them to be worthless ; indeed, the general want of knowledge locally as regards ore treatment prevents these tin deposits from being fairly tested at the present date. 4 Proceedings of the Royal Society of Victoria. Adverting, however, to the occurrences of gold, that at Mount Elmo will now be considered. The rocks amongst which it is found are quartzites with mica and andalusite schists, and these are associated with holocrystalline rocks, some of which are undoubted metamorphosed, whilst there are others about which some reserve must be made, but which will probaV)ly prove also to be of metamorphic character, and which appear to have been intrusions that already existed in the area prior to the period at which the change from shales to schists took place. Mount Elmo lies about three miles south east by east of the trigonometrical survey station of Mount Towanga, and the field is reached from Eskdale by one of the new roads of the Mines Department following the western or main branch of the Little Snowy Creek. The mines are upon several lines of reef, a considerable distance apart, two of which are at Mount Elmo, where they dip with and follow the ancient bedding planes of the country. The dip is 65 degrees east and the strike is about 10 degrees west of true north. The reefs at Mount Elmo have not yet been traced for a distance of more than about \^ miles, and are, as far as prospected, cut off completely by the bands or masses of the holocrystalline rocks just mentioned. The author was not able to visit the mass at the southern end of the line of reef, but at the northern end, lying between the Little Snowy Creek and the mountain spur containing the reef outcrops themselves, the band is variable in character. One mass that he saw was a tour- maline rock with felspars and muscovite, whilst another showed upon slicing, felspar, muscovite and biotite, some quartz exhibit- ing much strain structure and containing small fibrous inclusions, probably sillimanite, light brown hornblende and tremolite. The top of the mountain, somewhat to the eastward of the line of reef, is of greisen, a mass of which appears to lie parallel to the schists, but there was not an opportunity to trace out its extent. The part of the mountain where the more westerly of the two reefs is exposed is an andalustic and mica schist, the andalusite , crystals showing up very well upon the weathered surfaces on the mountain side. The reef lies between a. dense impervious bed of black quartzite and a bed of andalusite schist of a few feet thickness, on the other side of which a second bed of the black impervious quartzite is found. These black quartzites are Rocks and Ore Occurrences. 5 manifestly the remains of the old sandstones, and the andalusite schist that of old shales ; the partings between the two classes of rocks are still quite distinct. It may be here noted that the quartzite forms the hanging wall of the reef whilst the schist footwall has been distinctly affected and attacked by the tilling of the reef. Tliis reef is from six inches thick up to one foot six inches thick, and in the Lone Hand mine, where the author was able to examine it, had shown an almost continuous " shoot " of auriferous stone for three hundred feet, with values varying from a few pennyweights up to several ounces of gold per ton. One interesting feature here, as in the case at the Lightning iCreek, is the pai'allelism of the auriferous deposit to the old bedding planes, but the case under notice shows in addition the controlling action of the hard quartzite beds upon the direction and concentration of the deposits, deposits doubtless initiated along the planes of weakness due to the dissimilar characters of the beds of schist and of quartzite and accentuated by meta- somatic action when once started. The holocrystalline rocks at •the ends of the beds have doubtless also acted as controlling factors, limiting the extent of the deposit, and it must remain for the present an interesting speculation as to how far gold was derived from them. Although there have been prospecting operations in many parts of the field, yet the useful deposit appears to lie wholly in the two reefs to which reference has just been made. There are a number of small, rich deposits at Scrubby Creek, near Tallandoon, that from the description given to the author may well correspond to the occurrence at Mount Elmo, but these he was unable to visit. Some of the specimens showed however galena to be present in the lode fillings. At a point about three miles nortii westward of Lockhart's Gap there is another auriferous deposit of considerable extent lying not in a lode but in a band of holocrystalline metamorphic rock, showing idiomorphic quartz crystals and pegmatitic growth with 'the other constituents. It carries iron pyrites and free gold, the -latter sometimes to a sufficient extent to make it a valuable gold ore, and its pre.sence is itself sufficient to account for the fine alluvial gold along the creeks now being sluiced below it, just as in the case of the deposits at Lightning Creek. 6 Proceedings of the Royal Society of Victoria. The ore occurrence an Bethanga is one of very great interest in itself and was that to which most attention was paid for the purposes of the paper. The mines at Bethanga are upon several parallel lines of lode that have a general direction of 30 degrees east of north. One of these main lines and some subsidiary ones traverse the length of Mount Talgarno for nearly a mile, this por- tion of the mine the author could only examine on the surface. At a point about half a mile to the eastward of the southern end of the first lode, there is a second one known as Conness' that continues southward past a bifurcation that occurs, and until it reaches a fault line running nearly east and west and which throws it about five chains eastward. Its continuation southward of the fault forms the Gift mine for a distance of about three thousand feet, but three hundred feet of this nearest to the fault is not yet opened. This mine has three shafts, the " Gift," "Martin's" and " Leighton's," in the order named, going southward, of which Martin's and Leighton's are the deepest, owing to the slope of the ground. Martin's shaft is 800 feet deep. A third lode also, broken by the fault, lies about half a mile to the eastward of the Conness and Gift line — this lode has the Welcome mine in its northern end and the Excelsior mine in its southern portions respectively. A careful inspection of the surface showed that these lodes were each in similar rocks typical of the district and this enabled the author to concentrate his attention on the Gift and Leighton mine where most work is in progress at the present time, and where an exposure 800 feet from the surface can be seen. The whole of the district around the mine is of schistose and gneissic rocks, passing from manifest biotite and other schists, characterized by much contortion, into a holocrystalline rock or gneiss with the characteristic structure often resembling an intrusive one in the field, but which proves on slicing to be of oligoclase, biotite mica, very pale brown liornblende, some quartz showing much strain structure, garnets surrounded by chlorite and with very beautiful fibrolite, and small idiomorphic cordi- erite^ — two typical slices are shown in Figures No. 1 and No. 2. 1 Cordierite has recently been recorded as occurring at Wood's Point by F. P. Mennell — Geolog. Mag., Sept. 1902. Rocks and Ore Occurrences. The association between the hornblende or with the chlorite and the fibrolite does not appear to be accidental. The lode track is in this rock mass, it follows the line of rock that is most completely metamorphosed, and although it is well defined, its filling is, apart from the mineral contents, essentially the same as the country, there is a little more quartz at some places and in a few others a hard chloritic " pug " impregnated with pyrites and presenting slickensides is found. The metallic minerals are arsenical and ordinary iron pyrites, and copper pyrites, all carry- ing gold. There are very few vughs, but where these occur they show crystalline quartz and calcite upon iron pyrites. The copper, but not the gold contents, increase toward the line of the east and west fault. The analysis of the rock from several different places is shown in the table. Analysis (A) is of the rock adjacent to lode track in No. 2 level at the Gift shaft end, whilst analysis (B), (C), (D), are from samples collected along No. 5 cross cut (about 700 feet) on Martin's shaft. (B) being from near to the lode track, (D) from about 70 feet distance and (C) from a point intermediate between (B) and (D). The rock has however large segregation of oligoclase and small garnets, and no single analysis would fairly indicate its composition. Analysis (E) is of the felspar which is thus shown to be oliaroclase. No. 2 Level No. 5 Cross Cut A Felspar Analysis - (B) (C) (D) (E) SiO^ - 58.14 - 71.01 - 67.37 - 66.86 - 70.60 Al.,03 - 17.92 - 10.74 - 11.78 - 11.76 - 19.08 Fe,03(and FeO) - 12.71 - 5.19 - 5.43 - 6.72 - trace CaO - .65 - 3.36 - 2.. 50 - 1.02 - 2.94 MgO - .23 - 1.50 - 2.37 - 1.23 - 0.79 Na,0 - 3.12 - 4.47 - 3.05 - 7.89 - 4.60 K„0 - 3.02 - 2.38 - 3.81 - 3.86 - 1.78 P - - - - .20 - trace - .43 - trace — S - - - - nil - — - nil - — — CI - - - - .15 - trace trace - — — . Water at lOO'C. - .72 - 0.32 nil - 0.67 Water above 100°C. - 3.60 - 1.41 - 2.50 - 0.48 - — 100.46 100.38 99.24 100.49 99.79 8 Proceedings of the Royal Society of Victoria. The lodes are only of moderate average thickness say, of 1 foot and 1 foot 6 inches, but the contents are fairly rich, an average of li ounce gold per ton has been obtained over a considerable period of working. The lode filling therefore shows a high grade of concentration. The lode track is full of small slickensides, that are interesting when viewed in connection with the contorted schist of the neighbourhood, and to the regular and solid rock mass adjacent to it. Referring now generally to the facts recorded as to Bethanga, Mount Elmo and Lightning Creek, it will be noticed that there is a parallelism of the strike of the deposit to the ancient bedding planes seen or inferred in each case, and, at the same time, the deposit is not of the "contact" class. This same parallelism is a marked feature of many of the deposits in the schists of the Western Coast of Tasmania, only there the deposits are prominently connected with metasomatic action, during which action the element fluorine has often been present in so much quantity as to bring about the production of minerals such as axinite, datolite, fluorite and tourmaline, to such an extent as to somewhat mask the original features. Tiie same feature of paral- lelism is involved in the now generally accepted reading of the Broken Hill occurrence, as being an extreme case of a saddle infor- mation in schist, and, it is interesting in passing, to note that, at the latter place, Mr. J. C. Moulden^, has recorded the presence of cordierite but as a primary constituent of the rock. Although the evidence, if not otherwise supported, would- not be in itself strong, nevertheless, there is in it a considerable suggestion as to similarity of origin. All the occurrences described in the paper have common features, but these features differ greatly in degree. The crystalline rocks or gneisses at Bethanga offer the extreme case of metamorphosis just as do the gneissose masses at Ensay or the crystalline schists at Broken Hill or in North Western Tasmania, and in addition to this they exhibit extreme concentration of mineral in a narrow lode track. The auriferous rocks at Mount Elmo exhibit both of the same phenomena to a much smaller degree, whilst the occur- 1 Jour. Rov. Soc. N.S.W. Rocks and Ore Occurrences. 9 rence at Lightning Creek is but an instance of the diffuse charging of schistose rocks with auriferous material. In the case of Lock- hart's Gap there is a diffuse charging of liolocrystalline rocks with metalliferous minerals. In all these four cases the author would however submit that the action by which they received their gold was a comparatively deeply seated one, as indicated by the pres- ence of quartz, a substance that is in all probability present in the particular form in which we find it in lodes owing to a comparatively elevated temperature of the water current that carried the other mineral matter in course of deposition. These deposits thus differ in a very important manner from the •auriferous sandstone reefs to which the author has elsewhere drawn attention^ as occurring in Victoria, and that have distinctly received their gold when much nearer to the surface as is shown by the absence of quartz — that mineral when it occurs in such reefs being found quite independently of the gold, and offering no guide to the occurrence of the latter. The gold in this case, although in silurian sandstone, was probably deposited at a much less remote date than that of the occurrences forming the subject matter of the paper and probably in late tertiary times. The rocks at Bethanga show the interesting case where extreme earth pressure and local yielding has, owing to the work thereby done upon the rock, given rise to a development of heat so considerable as to bring about softening and a subsequent recrystallization of the mass, an unstable condition of affairs that relieves the earth stress- at a distance at the expense of the place where the movement first starts, and which, when it occurs near to a volcanic vent, is, the author would submit, the cause of a flow of fluid lava and the explanation of many volcanic pheno- mena. In the case under notice at Bethanga temporary planes of weakness must be assumed to have been left that were •disturbed again before the zone had completely cooled down to the average temperature corresponding to its depth. Such planes may indeed have been initially formed by the contraction of the 1 "Some Auriferous Deposits," Report Australasian Assoc. Science, vol. viii. ilelbourne Meeting, 1901, p. 227. '■i One place where such a state of strain in the strata is manifest at the present moment is at Hillgrove, N.S.W. See official N.S.W. Report on Hillgrove Gold Field bj' Andrews, 1901, p. 18. 10 Proceedings of the Royal Society of Victoria. cooling mass after the original severe lateral pressure had been relieved, but this is a less likely explanation on several grounds. The planes of fracture would, in whatever way in which they were formed, become convenient courses at a later date for water currents in the earth to take, these would bring with them the minerals subequently deposited. The deposit has evidently not been completed at one period of time, for although there does not appear to have been the phenomenal surface enrichment of the lode seen on many of the Victorian fields, yet there is the enrichment of the lode in copper to be accounted for at the places adjacent to the main east and west fault plane. At Mount Elmo the plane of weakness was evidently given by the still distinct bedding planes between the quartzites and schists whilst the two impervious beds of quartzite kept the subsequent water current to a definite course and with it the deposit. In the case of Lightning Creek, metamorphosis had not proceeded to so great an extent, and in the absence of dykes or fault planes the deep seated aqueous currents were not so confined — so that even though rich deposits of gold could and did occur they were individually smaller and generally more diffuse. Although in all probability belonging to the same period of time it presents the extreme opposite case to the concentration of mineral seen at Bethjinga, owing to the different degree of permeability to aqueous currents that it possessed. EXPLANATION OF PLATE I. Fig. 1. — A typical section of the gneiss. There is hornblende {h) — pleochroism very pale yellow to pale brown, Silli- manite, (S) — occasionally as single inclusion in quartz, but more often occupying areas amongst the horn- blende. Biotite Mica {b) Cordierite {c) generally as simple prismatic crystals grouped and single and lying amongst biotite or in quartz {q) this latter showing much strain figure in polarized light. The felspar (/) are both of twinned and simple areas. Fig. 2. — Is an actual section taken from one of the felspathic aggregations in the gneiss in the lower part of mine. There are garnets [g) each more or less completely I'nir. U.S. Vlrloriii, lUUH. I'latc I. fV ^ ^O d Fig. 1. Rocks and Ore Occurrences. 11 surrounded with green cldorite (ch) some of which is passing into brown areas, and outside this is a densely matted mass of fibrolite {fb) in a quartz matrix. Felspar (oligoclase) is shown almost surrounding the field. Sample from No. 5 cross cut, Gift Mine, Bethanga. Akt. II. — Geology of tJie Valley of the Lower Mitchell River. By JOHN DENNANT, F.G.S., F.C.S., AND DONALD CLARK, B.O.E. (With Plates II. to VIII.). [Eead 11th March, 1903]. Contents. PAGE I. — Introduction - - - - - - - 12 II. — Surface Configuration of Area - - - - 13 III.— Rose Hill Section 20 IV.— Bellevue Section - - 22 V. — Knight's Section ------- 27 VI. — Boggy Creek Section ------ 28 VII.— Moitun Creek Section ------ 32 VIII. — Dreir's Section ------- 35 IX. — Village Settlement Section ----- 36 X. — Skinner's Section ------- 36 XL— Saunders' Bluff 43 XII.— Lindenow Section - - . - - - 43 XIII. — Summary and Conclusion - - - - 45 I. — Introduction. The previous literature dealing with this portion of the Mitchell River area consists of: — (1) Notes on the Geology of part of the Mitchell River division of the Gippsland Mining District, by A. W. Howitt, F.G.S.i (2) Continuation of ditto^ (3) Notes on the Physical Geography and Geology of North Gippsland, Victoria, by A. W. Howitt, F.G.S.* 1 Geological Survey of Victoria. Reports of Progress, No. ii., 1874. '-' Ibid., No. iv., 1877. 3 Q.J.G.S., vol. XXXV., 1879. Geology of the Loiver Mitchell River. 13 (4) Notes on Miocene Strata at Jemmy's Point, and (5) Appendix to remarks on " The Older Tertiary Strata at Bairnsdale," by J. Denuant.^ (6) The Miocene Strata of the Gippsland Lakes' Area, by Dennant and Clark." In the last mentioned paper certain ferruginous beds at Boggy Creek and elsewhere on the Mitchell River were briefly referred to, and in a footnote it was stated that from an examination of their fossil contents they have been determined as miocene. A detailed study of the material since gathered from various outcrops on the river bank proves, however, that this statement is only partially correct. For a short distance from Bairnsdale the beds are undoubtedly miocene, but higher up the river the fossil casts in the ironstone represent, as we shall presently see, an older fauna. These fossiliferous ironstones form a marked feature of the Mitchell River banks, and the main purpose of the present paper is to describe them and refer them to their proper location in the tertiary series. They have been generally alluded to in the past as a deposit of uniform age which it was supposed had filled in an excavated area at the contact of the Bairnsdale limestones and the Avon sandstones. We, however, separate them into two main divisions, one of which is miocene, and a westerly extension of the Jemmy's Point beds, and the other earlier, and contem- poraneous with the eocene limestones and shell beds of the river banks. Another deposit which claims attention is the well known pebble drift or conglomerate. In the bed of the river, on its banks, in road and railway cuttings, it is everywhere pre- valent. Its origin and the mode of its distribution will be referred to as the various sections come under review. II. — Surface Configuration of Area. Under this heading the leading features of the valley of the Mitchell from Iguana Creek to the mouth of the river are outlined . 1 Proc. Roy Soc. Vict., vol. iii., n.s., 1891. '2 Proc. Roy. Soc. Vict, vol. x., n.s., 1898. 14 Proceedings of the Royal Society of Victoria. The Mitchell River after flowing in a southerly direction through rugged and hilly country consisting of devonian sand- stones, shales, and conglomerates turns sharply to the east when it enters the tertiaries and continues in this course until it discharges into Lake King. The watershed on the southern side is comparatively narrow. Moitun Creek, after flowing through devonian rocks, enters the Mitchell as it passes into the tertiaries, and the only other creeks discharging into it on this side are Lucas Creek, which joins it near Perry's Blufl", and Cobbler's Creek, which, after passing through McLeod's morass, junctions with the river near Eagle Point. The watershed line consists of a high sandy ridge which starts from the devonian hills, three or four miles to the south of Moitun Creek and continues in a direction approximately parallel to the course of the river. The height of the ridge is about 400 feet above sea level at its western extremity, and at its termination, at Eagle Point, about 85 feet. The latter is a conspicuous feature of the right bank of the Mitchell below Bairnsdale, which arrests the attention of passengers on the Lakes' Entrance steamers. The section from its summit to the river level, as illustrated in Fig. 2, contains the following strata : — Gravel, with stones up to Sin. in diameter Yellow sand ------ Coarse cemented sand - - - - Fine cemented sand and gravel in layers Total 80 feet. The highest ridges consist almost entirely of sand, while, at a lower elevation of from 150 to 200 feet above sea level, this is mostly replaced by a clayey soil, which, in general, is full of small circular depressions a few feet in diameter, locally termed crab holes. In very wet weather these form almost continuous sheets of water, but in summer they open into cracks which extend downwards for a considerable depth, allowing the water to escape. At an elevation of about 100 feet above sea level, a lower terrace runs parallel to the river, on which is a soil of the same character as that higher up. Near the limestone banks, especially 20 feet. 30 >» 15 )) 15 )> Geology of the Lower Mitchell River. 15 at Hillside, inverted conical depressions of considerable area occur, as much as from 200 to 300 feet in diameter and from 50 to 60 feet in depth, such as are common in other limestone districts. The flats on the banks of the Mitchell vary in width from about two miles at the upper end to less than half a mile at Bairnsdale, where they are confined by limestone cliffs. Their fall follows that of the river, and is approximately 100 feet in about 25 miles. The soil on them consists for the most part of a loose, friable, siliceous material of great depth. In the upper portions of the river, where its fall is greater and the flats are wider, the genei'al slope is from the higher, more distant banks towards the stream ; in places where subsidiary channels have formed, the slope is towards them ; in flood times it is by the backing up of water in these that portions of the flats are submerged. In the lower portions of the river, the banks now enclosing the channel are much higher than the flats which, in general, fall away from them, and towards the earlier formed, more elevated banks that bound them, so that during floods the actual margins of the river are the last portions to become submerged. The bed of the channel itself was originally confined between banks which were covered with dense vegetation. Above Lindenow the stream at one time consisted of long stretches of deep water and shallow rapids over loose stones. Below Hillside there was one continuous deep channel to the mouth of the river. The present state of the stream is widely different. The river banks have been denuded of vegetation, and broken down in many places by stock, with the result that the loose, friable soil has disappeared by the acre, and a stony gravel bed, sometimes over a hundred yards across, has been exposed ; the banks also have been left vertical, to wash farther and farther away with every flood. The lighter material is swept over the lower lands and passes into the lakes, while the heavier material is continually creeping down what was once the deep channel of the river, plugging it up solidily as it goes. This action has gone on until it is now possible to ford the river near Bairnsdale, wliile in the earlier days the Manaro crossing at the Wuk Wuk village settlement, was the point at which the river was fordable. Below Bairnsdale the river is from 200 to 16 Pi-oceedings of the Royal Society of Victoria. 260 feet in width, tlie depth of the channel varying from 14 to 30 feet. It is subject, when low, to tidal influences, salt water creeping up as far as the Bairnsdale waterworks, or a distance of from 15 to 16 miles from its mouth. The banks from Bairnsdale down slope on the eastern side towards Jones' Bay, one of the Gippsland Lakes, and on the western side towards McLeod's morass. About a mile below the morass, the current sweeps against Eagle Point, the ridge terminating the water- shed ; from this point it flows through a tongue of land for nearly five miles, the exact distance between a trig, station on Eagle Point, and another at the present terminus of the land being 7366 yards. This strip of land varies in width on either side from 200 to 2000 feet, the average being less than 1000 feet ; on one side it slopes to Jones' Bay, and on the other to Eagle Point Bay. After passing the present landmarks forming its mouth, the river flows in a well defined channel in Lake King for 2100 feet, with an average width of 160 feet, and of depth 10 to 12 feet at low water, the banks being about 2 feet below the surface, except after a heavy flood, when they appear above it. The submerged bank extends for about 1600 feet at right angles to the flow of the river, and at this distance is only from 3 to 4 feet below the surface, deepen- ing in a few yards to 8 or 10 feet, and then gradually to 22 feet, which is the uniform depth of Lake King over some miles. The tongue of land caused by the deposit in Lake King has had the efiect of partly closing Jones' Bay, from which the only exit for the waters is a narrow channel leading into the submerged extension of the Mitchell. The secondary banks separating the flats from the sloping tableland above may be traced from the devonian rocks at Boggy Creek to their termination at Bairnsdale, and again at the isolated bluff" at Eagle Point. From Moitun Creek to about a mile below Lindenow township, these banks consist of flne siliceous sedimentary material near their base, and coarse above, with ironstone bands of varying thickness, and more or less fossiliferous. (See sections of Morrison's Bluft' and Perry's Bluff", Figs. 8 and 10). Fossiliferous ironstone also crops out in an indentation between Perry's Bluff" and Coongulmerang. Thicker bands of clayey ironstone occur in cuttings near Lindenow, and Geology of the Lower Mitchell River. 17 fossiliferous ironstones on the river banks below the hotel, the State School, and Saunders' house at Lindenow itself. The ironstone and siliceous sediments shortly disappear, and the banks become less steep and slope gradually up to the higher ground. About half a mile from the ironstone outcrops, limestone shews at the foot of the bank and may be traced down to Bairnsdale, rising in places to a height of 100 feet from base to summit. At Rose Hill, about 3 miles west of Bairnsdale, the limestone is immediately overlain by a deposit of a different character. The bank thei'e is strewn with shells like those at Jemmy's Point, and thus of miocene age. A full description of this interestino- bed will be given in the sequel. On the upper surface of the terraced banks bounding the flats there is usually a heavy gravel wash, cemented in many places with ferruginous material and in some cases coated with manganese oxide. Similar gravel washes occur in the bed of the river, in places on the surface of the flats, and almost invariably below them. They exist also as low ridges on the tableland fully 250 feet above the present bed of the river and with included blocks weighing as much as 60 or 70 lbs. These ridges, no doubt, indicate in general the course of the old streams. They are capped with conglomerate and have worn less than the surround- ing softer country. Gravel containing boulders from six to nine inches in diameter is in fact met witli at least 20 miles from its source, and over 200 feet above sea level. These drift deposits, which have been extensively used for road making and railway ballasting purposes, are slightly auriferous. Indeed, the gravel washes in some parts of the Mitchell River itself, though many miles from any silurian rock, give payable returns. The watershed on the north side of the river, so far as tertiary deposits are concerned, includes the country drained by portions of Flaggy Creek, Prospect or Boggy Creek, and Clifton Creek, as well as a few minor gullies. Near Flaggy Creek, where devonian sandstones are exposed, the country rises somewhat suddenly to the north, and thence on to Boggy Creek the river runs almost parallel to the devonian hills, and at no great distance from them. The highest eminence is Mount Taylor where devonian strata, about -iOO feet in thickness, and composed of sandstones, con- glomerates, and shales, rest on porphyritic rock, the upper surface 18 Proceedings of the Royal Society of Victoria. of which is over 1000 feet above the level of the creek below. Another elevated porphyritic peak, known as Granite Rock, rises a short distance to the north-east of Clifton. This is about 500 feet in height and from its summit a magnificent panoramic view of the surrounding country is presented. Between these two hills the auriferous silurian rock crops out. A series of sandy ridges, evidently of marine origin, occupies the sui-face from the southern flanks of the hills to the Mitchell River, the general fall of the country being in the same direction. Boulders of sandy ironstone occur here and there on the ridges, but none of those collected from a greater elevation than 200 feet above sea level contained fossil casts. On the lower terraces the soil, which has been derived from the calciferous rock below, or from the decomposed ironstones, is fairly fertile. The upper sandy ridges are heavily timbered with eucalypts. The gravel terraces, though much less extensive on this side of the river than on the other, yet show in nearly all the sections exposed in gullies or road cuttings. On the banks of Boggy Creek, which has cut its way through some hundreds of feet of porphyritic rock, the auriferous terraces extend for over 120 feet above the present bed of the stream. Owing to the con- siderable mining operations formerly carried on in this creek, the bed in the lower portion of its course has become silted up, and the heavy sand is now filling the Mitchell. It is intereeting to note that by the combined action of Boggy Creek and the Mitchell River an isolated strip of calciferous rock has been left in the midst of an extensive flat. The next gully, Dreverniann's, commences at Mount Lookout, and has been formed by a stream which has cut its way through the sandy drifts as far as Knight's house, on the Wuk Wuk road, and tlience through tlie Bairns- dale limestones to the Mitchell. The only other stream of importance is Clifton Creek, which drains the silurian, devonian, and porphyritic hills to the north. After passing Hamilton's house it flows through a wide flat, thence through Boyd's, where it is bounded by silurian strata on the west, and the sand drifts and porphyritic rock on the east, and finally passes into Clifton morass. This is about two miles in length, and tapers from a mile in width at the upper end to a narrow channel at the lower. A big flood, which occurred about ten years ago, cut a cliannel Geology of the Lower Mitchell River. 19 some thirty feet deep, through the morass, or, as it may more properly be called, peat bog, and it has since slowly drained. The surface has, in consequence, become cracked and fissured in all directions, and a subsidence of several feet has taken place. Fires lit on it have burnt in all weathers for years. After burning, the ash, incorpoi'ated with the peaty material below, forms a fair soil. The whole of this peat morass appears to have resulted from the decay of small vegetation, as it contains no timber of any size. The limestone beds can be traced for a few hundred yards above Mr. Hope's house on the eastern side and also on the opposite bank, but higher up still only the sandy drifts appear. The morass empties itself into the Backwater, a channel of the Mitchell, which flows southward for about a mile between well defined limestone rises, then turns eastward along the limestone cliffs on the northern bank of the Mitchell, and finally joins the main stream near the Bairnsdale bridge. From (ilenaladale until just below the Lindenovv bridge, the vertical sections exposed on the northern banks, show sandstone and massive conglomerate beds, which rise into rounded hills of devonian sandstones. The inver flats thus lie for this distance between tertiary and devonian strata. The latter probably occur at no great depth below the Woodlands and Glenaladale proper- ties ; indeed, only a few yards above the Lindenow bridge, devonian sandstone outcrops on the flat itself. A short distance below this pdint. Flaggy Creek enters the river and has exposed a fine section known as Saunders' Bluff, which will be fully described later on. Another small stream comes in about half a mile lower down, and has cut through a heavy cemented compact gravel wash which reappears as far down as Skinner's. About a mile below Saunders' Bluff there is a fossiliferous section which continues for a few hundred yards, and terminates at Skinner's, the best known collecting ground for eocene fossils on the river. At the base of this section are the calcareous beds, which are overlain by a yellow, soft fossiliferous ironstone, and this in turn is covered with sandy drift and occasional ironstone boulders. Below Skinner's, only rounded hills of the ironstone deposit are observed until the Manaro crossing or Wuk Wuk village settlement is r(;ached. Here 2a 20 Proceedings of the Royal Society of Victoria. again the soft fossiliferous ironstones are in evidence, and under- neath tliem lie the compact Bairnsdale limestones. Another stretch of rounded banks extends as far as Myrtle Point, where on one side of a small gully ironstone outcrops are alone visible, while on the other a line vertical face of calciferous rock stands out boldly. The limestone continues for some distance, and is then succeeded by rounded ironstone hills, which are traceable across Boggy Creeek, to near its junction with the Mitchell. A tine section here leads on to Dreir's, where a clayey bed, containing numerous fossils similar to those at Skinner's, extends for about 30 feet up from the water's edge, when it is sharply cut off from the tall calciferous cliff above by a shelly layer. The hard limestone rock can then be followed round the bends of the river to Captain Underwood's, almost opposite Rose Hill, where it is overlain by ironstone deposits containing numerous casts of miocene fossils. The continuation of the calciferous rock from this point to the Backwater of the Mitchell, has already been noticed. The various sections on the river banks from which fossils have been obtained will now be described in detail. III. — Rose Hill. The Mitchell from Boggy Creek to Dreir's has a fairly straight course a little south of east, but then bends round and forms an extensive loop as far as Underwood's (see map). The Rose Hill section is at the western corner of the loop, and on the right bank of the river. Thence going east for some distance the stream turns north just behind the B.R.C. Hotel, but takes a westerly direction near Radford's house, until after passing the Bairnsdale Water Supply works, it again flows north towards Underwood's on the opposite bank. Our attention was tirst drawn to this locality by noticing that the limestone underlying the upper rounded banks showed an unmistakable dip, and it was thus evident that an unconformity existed. We expected to tind merely an ironstone deposit similar to that at Bellevue, on the other side of the river, which we had formerly examined pretty thoroughly. A search on the hills and gullies near the hotel, and thence westerly along the terrace Geology of the Lower Mitchell River. 21 bounding Smith's flat, showed that ironstone outcrops containing occasional casts of miocene fossils are present, but at Rose Hill section itself these give place to calcareous clays containing unaltered miocene shells, which recall the rich fossiliferous beds at Jemmy's Point, Lake Bunga, and other places on the Gipps- land Lakes. Individual examples of some species are very common, amongst which may be mentioned, Chione subroborata, C. propinqua, Tylospira coronata, Trigonia acuticostata, Ostrea arenicola, Olivella nymphalis, Turritella tristira, Tellina aequila- tera, Corbula ephamilla. In all 85 species were collected, a list of which is given below. Immediately underlying the miocene marls there is the typical eocene limestone of the area, which was here evidently an eroded surface when the later beds were deposited upon it. The full section (Fig. 3) from the summit of the terrace to the flat level is : — Clay Conglomerate, with ferruginous cement - Clay .-----.. Clay and soft limestone, with miocene shells - Marls with miocene shells - . - - Nodules of limestone, with eocene shells Calciferous rock, with eocene fossils Limestone ------- Total - - - 75 feet. The eocene limestones continuously outcrop at the base of the hills bounding the loop, except where the river trends northerly, or between the B.R.C. Hotel a;nd Radford's. For this distance only stratified drift is to be seen, whence it may be inferred that a channel of considerable width was there cut through the eroded limestone. Possibly the channel extended across in the direction of McLeod's morass. Fossils from Rose Hill. Ringicula tatei, Cossmann Bathytoma pritchardi, Tate Bullinella cixneopsis, Cossmann Bathytoma sp.* Bullinella aratula, Cossmann Bathyt<5ma, n. sp.* Terebra sp.* Pleurotoma, n. sp. Conus sp. (much worn) Surcula sp.* 7 feet. 10 10 10 8 20 4 6 22 Proceedings of the Royal Society of Victoria. Drillia sp.* Drillia sp.* Drillia sj).* Drillia sp.* Cancellaria sp.* Ancilla orycta, Tate Olivella nymphalis, Tate Marginella propinqiia, Tate Marginella sp.* Voluta sp. (miich worn) Uromitra etiglypha, Tate Fustis gippslandiciis, Tate Fasciolaria (?) sp.* Fasciolaria (?) sp. Latirus purpuroides, Tate Phos gregsoni, Tate Lampusia, sj).* Lampusia, n. sp. Tylospira coronata, Tate Oypraea sp. (fragment) Cerithinm (?) sp. Cerithium (?) sp. Turritella murrayana, Tate Tnrritella conspicabilis, Tate Turritella tristii'a, Tate Turritella acricvila, Tate Eissoia sj^. Crepidula unguiformis. Lam. Calyptraea crassa, Tate Natica subinfundibuluin, Tate Natica polita, T. Woods Natica hamiltonensis, T. "Woods Natica cunninghamensis, Harris Natica subvarians, Tate Eulima, n. sp.* Niso psila, T. Woods Odontostomia sp. (fragment) Trochus (?) sp.* Oalliostoma sp. Dentalium largicrescens, Tate Ostrea arenicola, Tate Placunanomia ione, Tate Spondyltis, n. sp. Limea, n. sp. Pecten antiaustralis, Tate (juv.) Cucullaea corioensis, McCoy Limopsis forskali, A. Adams Glycimeris laticostata, Q. and G. Nvicula antipodiim, Hanley Leda vagans, Tate Leda woodsii, Tate Trigonia acuticostata, McCoy Cardita spinulosa, Tate Cardita, n. sp.* Crassatellites oblonga, T. Woods var. Kellia micans, Tate Cardium sp. Meretrix paiTciriigata, Tate Meretrix, n. sp. Cbione cognata, Pritchard Chione subroborata, Tate Cliione propinqua, T. Woods Chione allporti, T. Woods Dosinia sp., aff. D. johnstonif Tapes, n. sp.* Zenatiopsis angustata, Tate Corbula scaphoides, Hinds Corbula ephamilla, Tate Panopaea aixstralis. Sow. Barnea tiara, Tate Tellina aequilatera, Tate Tellina albinelloides, Tate (?) Cuspidaria, n. sp. Aspergillum sp. Trematotrochus clarkii, Dennant IV. — Bellevue. The ironstone conglomerates of this section were examined several years ago, and before the Rose Hill bed on the opposite bank was discovered. It is situated about two miles from Bairnsdale and immediately on the terrace bank of the river. Many visits have been paid to the locality, and we have to thank Captain Underwood, who owns the farm, for valuable assistance in the researches made. The ironstone is fresh looking, and the fossil casts in it are exceptionally sharp and distinct. We broke " Also in the Gippsland Lakea miocene. t Also at Table Cape. Geology of the Loiver Mitchell River. 23 up a very large quantity of the material and were able to identitiy the species named below. We may state here, that in the identification of these and all other fossils from an ironstone matrix mentioned in the present paper, we availed ourselves of the critical knowledge of tertiary mollusca possessed by the late Professor Tate — in fact, the several lists offered of ironstone fossils from Bellevue, Moitun Creek, Village Settlement, and Lindenow, were drawn up in consultation with him. For the most part, moulds in wax have been prepared, which can be consulted whenever occasion arises. Fossils from Bellevue. Roxania, sp. Nassa sublirella, Tate Phos gregsoni, Tate Lampusia, n. sp.* Tylospira clathrata, Tate Turritella tristira, Tate Turritella acricula, Tate Natica cunninghamensis, Harris Leiopyrga quadrisiilcata, Tate Calliostoina, sp.* Modiola, two spp. Modiola, sp.f Glycimeris laticostata, Q. and G. Cucullaea corioensis, McCoy Leda woodsii, Tate Trigonia howitti, McCoy Trigonia aciiticostata, McCoy Crassatellites oblonga, T. Woods Chione propinqiia, T. Woods Chione subroborata, Tate Meretrix, sp. Dosinia jolmstoni, Tate Mactra axiniformis, Tate Corbiila ephamilla, Tate Zenatiopsis angustata, Tate Telbna albinelloides, Tate Myadora corriigata, Tate Liuiulites rutella, T. Woods Lovenia forbesi, T. Woods One of the ironstone blocks containing several marine fossil casts, shews also a well preserved leaf impression (species undetermined), and it is evident therefore, that the deposit was a strictly littoral one. The most frequently recurring species are Trigonia howitti, Chione propinqua, Zenatiopsis angustata, Leda woodsii, Leio- pyrga quadricingulata, and Lovenia forbesi. Less common, but still tolerably abundant, are Chione subroborata, Tylospira clathrata, Turritella acricula. The remainder are, as a rule, represented in our gatherings by single specimens only. With few exceptions, the same species are abundant throughout the calcareous beds of the Gippsland miocene as well as in equivalent strata at Rose Hill. * Also in the Gippsland Lakes miocene. t Also at Spring Creek. 14 feet. 4 )) 10 )) 4 )j 70 1) 30 )> 24 Proceedings of tJte Royal Society of Victoria. The Bellevue bank, as measured l)y levelling from Captain Underwood's doorstep, is 146 feet above the river level. (See Figs. 4 and 5 for sections at Bellevue). A section exposed on the face of the cliff overlooking the river gives : — Ferruginous blocks, with miocene fossils Clay Limestones (eocene), with fine gravel Yellow limestone (burnt for lime) Alternate beds of hard and clayey limestone, with eocene fossils - . . . Talus to river level . - . - . Total 140 feet. A little back from the cliff and on the slightly sloping bank, a heavy gravel wash shows in a quarry, referred to below, and then farther up still a ferruginous sandy conglomerate. The fall of the river from Underwood's down is very slight, the surface of the water at the section quoted, being only six feet above sea level. There is a deep gully close to the house, and a section across it is given in Fig. 4. On both sides the hard calciferous limestone can be seen outcropping here and there among the grass, until towards the summit the overlying fossiliferous ironstone and heavy gravel wash successively appear. The quarry shown in Figs. 4 and 5 was excavated to obtain gravel for road making, and at its base a portion of a fossilized tree three feet long, and two feet in diameter, was uncovered. The log has not been removed, and was thus seen by us /« si'/u. It is coated all round with ferruginous gravelly material to a thickness of some inches, while the internal part consists largely of decayed vegetable matter. The top of the quarry which is 13 feet below Bellevue House, and therefore 139 feet above sea level, represents nearly the highest point at which miocene casts were obtained. The hou.se is built on the river terrace and not on the summit of the bank, which is reached by a gradual slope at a further height of 105 feet. The strata consist mainly of gravels, sands, and clays, with here and there ironstone blocks enclosing pebble.s, but apparently unfossiliferous. The same remark applies to ironstone at Clifton, near at hand, and also to Geology of the Lower Mitchell River. 25 scattered surface blocks at a much hio;her level on the Bulumwaal road. The pebbly drift in the Bellevue quarry is very coarse, and on one side fully 12 feet thick. Many of the larger stones lying on the floor are lenticular in shape, and as much as a foot in length, by eight to nine inches in breadth. On the face of the quarry the stones are of various sizes, and the larger ones mentioned have probably been rejected when the material was carted for road making. At first sight it might easily be supposed that the pebble drift is interstratified with the fossiliferous ironstone, as it crops out not only at a higher, but also at a lower elevation even in con- tiguous exposures. In the quarry some few blocks apparently overlie gravel, but this we think is due to slipping. After pro- tracted observation and much consideration, we decide that the gravel drift is younger than the fossiliferous miocene ironstone. Reference to Figs. 4 and 5 will shew our interpretation of the evidence presented at Bellevue. As before mentioned, the gravel is wide spread, and is especi- ally displayed in road cuttings south of the river, between Bairnsdale and Lindenow. At the latter locality the river is fordable in summer, and, though a large volume of water is always flowing, the greater part of the channel, which is some- times 300 to 400 feet in width, becomes dry. A large extent of the river bed is thus exposed, and consists entirely of loose stones like those at Bellevue. Similarly at Bairnsdale the gravel is abundant, and has been freely used in making the roads of the shire. On the north of the river the gravel deposits, though fairly thick in places, are less extensive than those on the south side. At Underwood's, as we have seen, and also in a cutting in Dreir's lane, much gravel is present. Again, there is a heavy conglomerate, 10 feet thick, at Skinner's, and another towards Saunders' Bluff, both being terrace deposits. The origin of the gravel drift is not in doubt. It is clearly •derived from the waste of the devonian, silurian, and porphyritic rocks to the north. The majority of the pebbles consist of sand- stone, but among them are fragments of porphyry and quartz. Though much weathered, the larger porphyritic pebbles, when fractured, sometimes reveal an internal core of scarcely altered 26 Proceedings of the Royal Society of Victoria. rock. From Lindenow on to the west, devonian rock masses may still be seen in siiu in the river bed and together with their associated porphyries they no doubt formed the coast line during the deposition of the earlier tertiaries from Lindenow to Moitun Creek. These ancient rocks, however, are at a consider- able distance from Bairnsdale and Bellevue, so that the gravels there must have been brought down by the river itself or by other streams from the north. As we shall presently shew, there is undoubted evidence of drifts due to coast action at Moitun Creek, Lucas Creek, etc., but the coarser and far more widely spread gravels now under consideration have, we think, been largely transported by running water. The relation of the gravels to the miocene ironstone has been chiefly studied at Bellevue, where alone the contact of the two deposits is well displayed, and the following extracts from notes taken on the spot will explain our views upon the somewhat complex problem presented. The gravel appears to be merely a terrace deposit due to an old stream. It is too coarse for simply marine wash, being so far removed from its source. It can be traced westward for some distance, and since it does not extend laterally into the hill, it clearly represents a channel cut throngli the old miocene bed. Reference to Fig. 5 shews that in the quarry gravel occurs at a lower elevation than an exposure of the fossiliferous ironstone, but this is explained by supposing that the drift has cut away portions of the bed and has left blocks of ironstone, which now protrude here and there, through the gravel. Though in places at a higher level than the latter they are the older strata. On levelling across from the quarry to Underwood's garden the fossiliferous blocks were met with at the same elevation ; the gravel is above, while beneath there is no gravel, but only clay and ironstone. A flag-post hole was lately sunk in front of the house to a depth of six feet through this gravel, so that the latter is there on the top. It may be added, also, that, though occasional loose blocks- of fossiliferous ironstone are found comparatively high up on the banks, the gravel invariably shews higher still. The precise age of the gravel drifts is doubtful. So far as the evidence goes they may be of any age from pliocene to recent. They are probably contemporaneous with the formation of the Geology of the Lower Mitchell River. 27 river channel, at least in this part of its course. In many places they are left high up on the banks of the river, which has since cut its channel deeper and deeper into the underlying limestone. Frequently they have been redistributed, and, as at Lindenow, now rest in the actual bed of the stream. Next in order to the ironstone conglomei'ate come the well known Bairnsdale limestones. They are of unknown thickness here, but terminate abruptly as the river is followed up. They may be briefly described as hard compact rocks, rich in fossils, which, however, with the exception of a few species of pectens, a large oyster, several brachiopods, and occasional examples of other forms occur as calciferous casts only. Lists of the species recognised in various outcrops of the strata have been previously given (4 and 6), and need not be now repeated. For miles along the Mitchell as well as on the Nicholson and Tambo Rivers, at Lake Tyers, and as far east as Snowy River, the same eocene rocks are presented. At Bellevue the upper portion of the limestone for several feet down shews numerous very small siliceous pebbles, with here and there a larger one scattered irre- gularly through it. All of them are ironstained, much rounded, and worn. We have not observed similar pebbles in exposures of the rock elsewhere. There is no question here of a remade bed, the junction of the two strata, viz., eocene and miocene being sharply defined. Both are apparently horizontal, and thus comformable. Still the exposure in the upper deposit is too small to allow of a positive statement under this head. V. — Knights. On the Wy Yung road, north of the Mitchell, and between Bairnsdale and the section just described, a small road cutting displays a similar ferruginous conglomerate, but the fo.ssil casts, owing to the prolonged weathering of the material, are usually indistinct, Trigonia howitti and Myadora corrugata being the only ones we could definitely name. Under the ironstone a moderately stiff clay, containing from 40 to 50 per cent, of coarse waterworn sand, reaches down to the road level. The junction line of the two strata is uneven, slight hollows in the sands and clays being filled by the ironstone. As the latter continues on the hilly ground beyond the top of the cutting, its thickness could 28 Proceedings of the Royal Society of Victoria. not be accurately estimated. The cutting itself is about 145 feet above sea level, or at the same height as the Bellevue section. Isolated boulders of fossitiferous ironstone can also be traced in the neighbourliood of this cutting for a further height of 15 feet. There is no gravel associated with the ironstone here. From Knight's to Bairnsdale the country falls, and the eocene limestone outcrops on the river banks v^rith pebble drift i-esting immediately upon it. In a former paper (6) we traced the northern boundary line of the Gippsland miocene from Red Bluff to the Nicholson River, but the discovery of the ironstone casts at Knight's and Bellevue, as well as of unaltered miocene shells at Rose Hill permits of the continuation of this line for at least eight miles farther west. Between Knight's cutting and the Nicholson the miocene has not been observed, but its existence in portions of the area immedi- ately north of Bairnsdale is not improbable. In geographical order going up the river from Bellevue, the section at Drier's comes next, but as in one important respect this resembles Skinner's, it will be described in conjunction with the latter, and we pass on to VI. — Boggy Creek. On the Government maps this stream is now noted as Prospect Creek, but we retain the old name for the sake of reference to earlier descriptions. It empties into the river through a wide flat. In summer the actual channel is narrow, and confined to the eastern margin of the flat. At the southern end and abutting on the river there is a tine cliff" of eocene limestone 194 feet in height above datum line (sea level), and very steep, a fact which was forcibly impressed on our minds when climbing it on a very hot day. The bank bordering the flat on the eastern side is much lower, rounded, and with a more gradual slope ; it continues for about three quarters of a mile, and encloses a kind of amphi- theatre reaching up to the road. Where the traffic bridge crosses the creek, the flat narrows abruptly, but widens out again on the north. On both .sides of the creek the ascent to the general level of the country is steep ; by actual levelling the highest part of the road, near Dooley's gate on the western slope, was found to be 230 feet above datum line. Geologij of the Loiuer MitcJtell River. 29 At the summit of the limestone cliff overlooking the river we found no ironstone. The rounded banks of the creek farther from its mouth are covered with soil, but here and there the limestone crops out, or shews in wombat holes round the base of the hill up to the bridge. In addition, there are numerous boulders of sandy ironstone containing veiy distinctly marked fossil casts. These boulders continue from near the creek level almost to the top of all the hills in the amphitheatre, with the exception of the tall cliff at the e.xtreme south. When we first saw the ironstone boulders we somewhat hastily concluded that they contained miocene fossils similar to those gathered at Belle- vue, and we commenced to break them up in order to enrich our collection. To our surprise, however, we obtained instead a typical eocene fauna, as will be seen from the following list of species, determined: — Fossils from Boggy Creek. Bullinella, sp. Spondyliis pseiidoradula, McCoy Eoxania woodsii, Tate Hinnites corioensis, McCoy (prob.) Convis, sp. Pecten miir ray anus, Tate Volutilitlies antiscalaris, McCoy Modiola pueblensis, Pritchard Voluta maccoyii, T. Woods Glycimeris laticostata, Q. and G. Fasciolaria sp. Lhnopsis forskali, Adams Latirus murrayanus, Tate Cucvillaea corioensis, McCoy Lampusia woodsii, Tate Cardita polynema, Tate Lampusia annectans, Tate Cardivun victoriae, Tate Apollo prattii, T. Woods Meretrix submviltistriata, Tate Semicassis transenna, Tate Chione dimorphophylla, Tate Cypraea, two spp. Mactra liowchiniana, Tate Potamides semicostatuni, Tate Panopaea orbita, Hutton Turritella miirrayana, Tate Cuspidaria subrostrata, Tate Turritella tristira, Tate Magasella woodsiana, Tate Natica, sp. Flabellum gambierense, Dvmcan Emarginiila wannonensis, Harris Flabellum victoriae, Duncan Dentaliimi mantelli, Zittel Placotrochiis deltoideus, Dvmcan These fossils, or at least nearly all of them, are also common in the prolific shell beds at Skinner's and Drier's (see post), which we regard as on the same geological horizon as the Bairnsdale limestone, the relative abundance of certain fossils in the two sets of strata being chiefly due to altered sedimentary conditions. Further reference to this matter will be made later on. At Boggy Creek both strata are represented, the first by the fossiliferous ironstone, and the second by the adjoining calciferous rock. 30 Proceedings of the Royal Society of Victoria. Amongst the ironstone strata of the amphitheatre banks, we picked up several unaltered oyster shells similar to tliose in the river cliffs. In occasional blocks, also, we found that the substi- tution of the iron oxide for limestone was partial and confined to the outer portions of the stone. Specimens from the latter have not been quoted in the list, but only those which occurred as casts in fully altered rocks. For the most part, the nodules of fossil- iferous ironstone crop out at a comparatively low level, but some resting on the tops of the rounded hills bordering the flat, and others still higher up on the eastern slope of the road yielded, when broken, good fossil casts. Besides the exposure of the limestone on the southern cliff and at the base of the low hills along the creek, there is a small inlier on the I'oadside at the eastern approach to the bridge. This has been quarried and a face about 35 feet high is left (see Sec. Fig. 6). The rock here is much weathered and also hardened superficially by redeposit of calcium carbonate, but a few shells were detected in it, viz., Spondylus gaederopoides, Pecten yahlensis, and P. gambierensis. The full section at the quarry is : — • Surface soil ------- 6 feet. Clay - . . 8 „ Projecting limestone layer, coated with iron- stone, and containing calciferous casts of fossils - - - - - - 2 ,, Fine sand and efflorescing salts - - - 10 ,, Nodules of limestone and silt, with very small worn quartz pebbles - - - 9 ,, Total 35 feet. The hill on the west side of the creek leading up to, and beyond Dooley's gate, is a counterpart of that on the other side, except that no limestone is visible at the base. Section Fig. 6, shews the strata on the western ascent, the steepness being, to save space, greatly exaggerated. The alternating layers of drift and soft ironstone bands occur up to the summit. The summit itself, is capped with the bed of an old stream, the bottom of the channel being well detiued ; the silt has been cut into, and Geology of the Loiver Mitchell River. 31 the pebl)les and stones are cemented together, giving a hard conglomerate cap whicli has weathered less than the surrounding softer material. The fine drift sand on this side suggests sedimentation from a river current, which emptied into the eocene sea, near the present mouth of Boggy Creek. The sediments are of course marine, and practically contemporaneous with the deposition of the limestone on the eastern bank. A short distance up the western rise from Boggy Creek, and just before reaching Dooley's gate, thei'e is a road cutting, in which a thickness of 8 or 10 feet of massive ironstone is exposed. Its elevation is 160 feet above sea level, and, though unpromising looking for fossils, we ultimately found a layer shewing numerous casts, amongst which we identified the following species : — Conns sp. Glycimeris laticostata Lampusia sp. Cardiiim sp. Spondylus gaederopoides Magellania insolita Pecten foulcheri Echinoderm (spine) Pecten gambierensis Placotrochiis deltoideus These fossils of course stamp the outcrop as eocene, which thus extends upwards at Boggy Creek, and does not give place in the higher levels to the Bellevue miocene. Again, on the southern cliff, at the mouth of the Creek, which is 194 feet above datum line, and thus fully 40 feet higher than Bellevue, the top- most strata are still eocene. In fact, after leaving Underwood's, we found no further trace of the miocene westward, though we made most diligent search. At Myrtle Point, about a mile further west, we again struck the river. Ironstone is here abundant just below the summit of the cliffs as well as in places down the bank. Many boulders were broken up but the fossil casts wei'e rare and mostly indistinct ; we identified only Magellania insolita, and Cardita delicatula from this outcrop. In many blocks we noticed very small fragments of decayed wood. Before leaving the Boggy Creek Section we remark that the fossils obtained by Mr. Howitt in his researches in this area were submitted to Sir F. McCoy, who classed those from the ironstones of Boggy Creek and Moitun Creek as upper miocene or lower pliocene, and younger than the Bairnsdale limestones, which he placed in the middle miocene ( 1 ). The distinction in age thus drawn between the calciferous and ferruginous beds at 32 P7\)ceedings of the Royal Society of Victoria. Boggy Creek is, as we have indicated, an error. There is no break in the series, both sets of strata, though differing litho- logically, being on the same geological horizon. According to the views now current concerning the age of the Australian tertiaries, the deposits are classed as eocene and not miocene. VII. — MoiTUN Creek. This, the extreme westerly section examined, is the most typical one from which ironstone casts belonging to the older group of the Mitchell tertiaries have been obtained. As already stated, Moitun Creek enters the JVIitchell River just at its great eastern bend. At this junction the river Hat is 108 feet above sea level. A fine section here (Fig. 7) shews towards its base hard yellow sandstone and then sand and drift with fossiliferous ironstone in layers up to a height of 113 feet. Resting upon the topmost ironstone layer there is about 17 feet of gravel wash, with stones in it as much as 6 inches in diameter. The summit of the cliff is 140 feet above the river, but the country still rises and heavy gravel washes may be traced up to a height of 200 feet. Our chief collecting ground was not at the junction, but about half a mile west, on the south bank of Moitun Creek. A section at Morrison's Bluff, which rises steeply from the margin of the creek (Fig. 8), reads thus : — Surface soil and gravel Massive conglomerate - - - - Ironstone layers, with fossils and sandy drift Pebbly gravel ----- Yellow sandy clay - . - - Ironstone, highly fossiliferous Pebbly cemented gravel - - - • 8 Fine yellow sand, with ferruginous pipes and talus -------50 25 fee 5 )) 9 5) 5 5J 6 5) 9 Total 110 feet. A few chains further west, and close to the road over Moitun Creek, leading to Iguana Creek, the tertiaries rest directly on 35 feet 27 )) 48 )> Geology of the Lower Mitchell River. 33 devonian shales, the sequence of the strata from the creek bed to the level of Morrison's house being : — Gravel and clay . - - - - Ironstone bands, with fossils Devonian shales - - - - - Total 110 feet. These measurements are only up to the terrace bank on which the house stands. The hill, still shewing drifts and gravel washes, continues by a gradual slope up to Morrison's gate on the main road, where an elevation of 250 feet above the river was recorded. A longitudinal section at the actual contact of the tertiary and devonian strata is given in Fig. 9. Three bands of fossiliferous ironstone, iuterstratified with sands and gravels, occur in a vertical height of 48 feet. Both in Morrison's Bluff and at the contact section, fossil casts were collected from near the base up to the summit of the terrace; the most prolific iron- stone bands were, perhaps, one just under the terrace level and another adjoinining the contact section. The blocks collected are full of fossils and a great variety of species is represented. On the whole, the casts are inferior in clearness to those at Boggy Creek, and a larger quantity of material was broken up to obtain examples which could be definitely named. Impressions in wax or plaster were taken in almost every case. Fossils from Moitun Ckkek. Actaeon scrobiciilatiis, T. Woods Tiirritella murrayana, Tate Scaphander tenuis, Harris Rissoia vel Rissoina sp. Bullinella exigua, T. Woods Calyptropsis turbinata, T. Woods Mangilia (?) sp. Natica polita, T. Woods Marginella winteri, Tate Natica vixumbilicata, T. Woods (?) Marginalia woodsii, Tate Eulima sp. Marginella sp. Cantharidus sp. Volutilithes antiscalaris, McCoy (?) Dentalium sp. Fusus dictyotis, Tate (prob.) Glycimeris cainozoica, T. Woods Latirus sp. Glycinaeris laticostata, Q. and G. Trophon sp. Limopsis morningtonensis, Pritchard Tritonofusus sp. Cucullaea corioensis, McCoy Typhis evaricosus, Tate Nucula tenisoni, Pritchard Lampusia tortirostris, Tate Leda woodsii, Tate Turritella tristira, Tate Cardita compacta, Tate (?) 3 34 Proceedings of tlie Royal Society of Victoria. Cardiiim victoriae, Tate (?) Dosinia densilineata, Pritchard Panopaea orbita, Hutton Psammobia aequalis, Tate (?) Meretrix ebiirnea, Tate (?) Zenatiopsis angi^stata, Tate €hione allporti, T. Woods Corbiila epbamilla, Tate Chione etheridgei, Pritchard Sphenotrochusemarciatus, Duncan Chione propinqiia, T. Woods Deltocyathus viola, Duncan (?) Chione, n. sp. (also at Skinner's) Deltocyathus (?) sp. ■Chione cainozoica, T. Woods A comparison of this list with that given for Boggy Creek shows some variation in the species represented. This is doubt- less owing to the more littoral character of the Moitun Creek deposit. Its fauna is apparently allied to that at Table Cape, on the north coast of Tasmania, which is admittedly a strictly littoral one. The outcrops of the fossiliferous ironstone at Moitun Creek are confined to the steep southern bank : beyond the flats on the north the strata consist of the devonian sandstones and con- glomerates, which continue up to Iguana Creek, the weir on the Mitchell, and thence for a long way northwards. It is especially important to note that there is no limestone at Moitun Creek, nor indeed for several miles to the east to it ; the actual limits of this rock on the Mitchell will be indicated directly. At the mouth of Lucas Creek, which is about two miles east in a direct line from the Moitun Creek junction, there is a bold clifl •on the Mitchell called Perry's Bluff. The sediments are mostly very fine, and often almost a pipe clay. The strata are horizontal, And from the surface downwards consist of : — Ironstone . . - - . Heavy gravel wash ... Ironstone hand - . . . Sandy cement, with ironstone pipes Layers of ironstone Sandy cement Ironstone pipes (basic sulphate of efflorescent) . . - - •Cemented fine sand, highly coloured Ferruginous pipy layers - Very tine cemented sandy material - Total— about 97 9 Ft. In. - 6 0 - 15 0 about 4 0 - 40 0 about 3 0 5 0 iron, - 2 to 3 0 - 15 0 - 0 9 - 6 0 Geology of the Lower Mitchell River. 35 Tlie cliff itself is almost vertical but above it the ground slopes gradually and shews 20 feet of sand to the hill top. Details of this section are also given in Fig. 10. There are innumerable casts of small shells right through the sandy drift material, but they cannot be identified. It is seen from the several sections in the neighbourhood of Moitun Creek that the strata exposed consist of fine sediments, with which layers of fossiliferous ironstone, and also heavy gravel washes are interstratilied. Since the shore line here during the deposition of the eocene was evidently formed of the devonian strata, the drifts and conglomerates may in some measure be accounted for by coastal action. They must, however, be mainly due to mountain streams, including the Mitchell itself, which brought down both tine and coarse sediments and distributed them near the confines of the subsiding sea. The Mitchell River in eocene times probably discharged near Moitun Creek and the sediments which came down are represented by the silts and gravels constantly disclosed in the river sections. The ironstone forms only a small proportion of the total material in the cliffs. Not only the ironstone, but also the cemented sandy drifts are sometimes fossiliferous and we may conclude that in part, at least, they are altered representatives of shell beds similar to those at Dreir's and Skinner's. With regard to the more elevated sands and gravels displayed in the same sections fossil evidence for the determination of their age is so far wanting. They rise by a gentle slope from the main terrace on the south bank of the river up to the general level of the country. VIII.— Dreir's. Reference to the map (Fig. 1.) will shew that this section is situated about midway between Bellevue and Boggy Creek. It consists of a thickness of 70 feet of typical Bairnsdale limestones at the top and beneath them 30 feet of calcareous sands and clays full of well preserved gastropods and lamellibranchs. The two sets of strata are separated by a shelly band. A dip varying from 5° to 10° was noted in the limestone ; in most outcrops of such strata on the Mitchell the bedding is horizontal. A sketch of Dreir's cliff is supplied in Fig. 11. The sequence of the 36 Proceedings of the Royal Society of Victoria. calciferous rock and clays here is notable, since in the contact of equivalent strata on the Moorabool this order is reversed.^ Some years ago a fine collection of fossils was made from the lower strata, the names of which we will include with those from a similar deposit at Skinner's, higher up the river. Unfortu- nately, further collecting at Dreir's is for the present extremely difficult, the outcrop being now almost completely hidden, partly by alluvium and sand washed over it by floods, and partly by the dense undergrowth which afterwards sprung up. IX. — Village Settlement. This section is on the north bank of the river, and between Myrtle Point and Skinner's. Some clearly marked fossil casts were extracted from ironstone blocks cropping out on a road leading down to the river, which is here 38 feet above sea level. The lower portion of the bank is occupied by the usual Bairns- dale limestone, and at a height of 50 feet above the river level this gives place to soft fossiliferous ironstone. A short stay sufficed to shew us that the casts resemble those at Boggy Creek, as is indicated by the following examples : — Fossils from Village Settlement. Cypraea pyrulata Glycimeris laticostata, Q. and G. Tiirritella, sp. Limopsis insolita, G. B. Sow. (prob.) Spondyhxs gaederopoides, McCoy Chione, sp. Spondyhis pseiidoradiila, McCoy Panopaea orbita, Hiitton Pecten gambierensis, T. Woods, var. Corbula ephamilla, Tate Pecten foiilcheri, T. Woods X. — Skinner's. Going a little further west we come to Skinner's, where a series of sections extend for about half a mile along the northern bank. Since the silting up at Dreir's, this is now the only locality on the river in which well preserved eocene fossils can be collected ; in the ironstone they are, as we have seen, i-educed to casts, while in the Bairusdale limestone unaltered forms are rarely found. The earliest section worked is at the base of a steep bank directly under Skinner's house. An almost similar section, 1 Hall and Prichard : Notes on Lower Tertiaries of Southern Portion of Moorabool Valley. R. S. Vic, vol. iv., n.s., 1892. Geology of the Loiver MitcJtell River. 37 a few chains farther west, is only accessible on foot when the river is low, but it is, we believe, a more profitable bed for the collector than the other. We reached it in the first instance by means of a duck boat, a mode of conveyance we cannot recommend to geologists, as by some mischance one of us was suddenly tumbled headlong into the river. In addition to the larger forms of mollusca the strata are replete with small shells, corals, bryozoa, foraminifera, etc., which can be easily washed out of the friable matrix. In both sections the shell beds are at the base of the bank and under compact limestone, but in contrast to Dreir's, the latter no longer constitutes the main mass of the strata, alternations of sandy drift and ironstone occurring up to the conglomerate capping at the summit of the terrace. A drawing is given of the more westerly of these sections in Fig. 12, the strata observed being, Sand and Clay on the sloping ground back prom the terrace, and then : Massive cemented conglomerate - . . Silt and ironstone bands . - • . Sandy drift ------- Clayey ironstone band, with eocene fossils Sandy drift ------- Compact limestone . . . . . Fine sandy drift, with ferruginous pipes, similar to the high level beds at Dooley's (Boggy Creek) - - - Loose calcareous beds (fossiliferous) Compact shelly beds down to river level Total 95 feet. The river here is 46.55 feet above sea level. At another section, a little farther west still, the strata are much the same, but the basal bed consists of 25 feet of the calcareous material similar to that worked some years ago at the first section, or Skinner's proper, when the majority of the fossils listed below were collected. ' In the half mile stretch between Skinner's and the gully, which breaks through the banks westward, many good sections were 15 feet 15 >> 15 >) 1 )) 14 )) 4 55 9 55 13 55 9 55 38 Proceedings of the Royal Society of Victoria. noted, but in this short distance they shew a surprising variation in character. This is to some extent the result of alteration since the deposition of the strata, but the chief cause is undoubt- edly changes in the sediments. A few hundred yards west of the last section, the calcareous strata disappear entirely at the base and cemented ironstone or only sandy drift occurs for several feet up, while overlying there are nodules and even bands of hard unaltered limestone. A few yards farther west still, i.e., near the gully mentioned, this in its turn disappears. The lower silt is full of the ferruginous pipes and stems common at Dooley's and other sections, and there appear to be also the remains of bryozoa (though on this point we cannot be positive). We have only recently been able to observe these final sections on Skinner's bank : at previous visits the steepness of the bank and the thick scrub covering it, combined with the approach of the wacer to the very edge, rendered the place practically inaccessible, but on the last occasion we managed to clamber all over the face. On the other side of the gully, the massive conglomerate capping and a thickness of 15 to 20 feet of ironstone overlie the sandy drift. This ironstone may be traced westward for about a mile, and is no doubt the same as that which caps Saunders' Blufi". The layers at the base of the latter correspond to those at the west end of Skinner's, about a mile and a half away. Since Saunders' Bluff is practically at the end of the eocene on the north side of the river, the old coast line must have been close to the sections noted, and it is thus fair to conclude that the variation in the strata is mainly due to sedimentation. We observe that on this side of the river, the limestone at Myrtle Point is of great thickness and constitutes the main mass of the bank, yet at Skinner's section close at hand it is reduced to a thin band. Again, on the south bank, the limestone passes with surprising suddenness into the drift deposits. On the western flank of the Mitchell tertiaries there is thus no gradual thinning out of the limestone, and it cannot, as Mr. Howitt's theory requires, be an eroded basal bed upon which the sandy drifts, with their alternating fossiliferous ironstones, have been subsequently deposited (1). On the contrary, we regard the strata, including the limestone, gastropod beds, and other Geology of the Loiver Mitchell River. 39 sediments, as practically contemporaneous, that is, they belong to the same horizon of the eocene. It is true that both at Dreir's and Skinner's, the calcareous shell beds underlie the Bairnsdale limestone, and must therefore have been first laid down, but at Boggy Creek the ironstones of the amphitheatre, in which similar fossils are now represented by casts, actually overlie the same limestones. Those who have studied the marine tertiaries of Southern Australia, will doubtless recall somewhat analogous occurrences in the eocene of other localities. The relationship of certain well-known calcareous or clay beds, with a rich assemblage of fossils, to adjoining polyzoal limestone has been discussed in various memoirs, and it will suffice to say here that their close palaeontological affinities are now generally recognized. The proximity of the former shore line renders the solution of the problem for the Mitchell sections comparatively easy. The creeks or rivers which discharged into the eocene sea would bring down sands and clays, and a favourable matrix for the preservation of the tests of gastropods, corals, etc., would thus exist, while in the quiet clear waters of areas removed from the action of such currents, the faunal remains might at the same time accumulate as beds of limestone. In the latter, oysters, some species of pectens, echinoderms, etc., are usually more abundant than in the clays, while univalve moilusca are comparatively scarce. The preponderance of certain fossil forms in the respective strata may probably be accounted for by the nature of the enclosing media. Though the large majority remain intact oidy in the clays and calcareous sediments, a few are certainly best preserved in the limestones. Attention may here be called to Mr. F. W. Harmer's description of the Coralline Crag of Suffolk (England), wherein he states that pectens and other moilusca with calcitic tests, and the remains of bryozoa are common, but the opaque or ai'agonitic moilusca are represented by casts only\ Similar remarks are applicable to the Bairnsdale limestones. In some portions of the latter, as at Swan Reach (5), casts of gastropods, though not plentiful, yet occur, but they are rarely identifiable. 2 Q.J.G.S., vol. liv., p. 321. 40 Proceedings of the Royal Society of Victoria. As already shewn by Messrs. Hall and Pritchard, it is by no means necessary to assume that the limestones of tertiary beds represent deep water deposits.^ It follows of course from what we have stated that the limestones in this part of the Mitchell area could not have been laid down at any great distance from the shore, and the views expressed by the authors named are thus here of special application. A list of fossils from Skinner's was given by one of us a few years ago (5), but the present opportunity is taken of adding to as well as of revising it. As before intimated, species from the equivalent bed at Dreir's are now included. We have to thank Mr. Wallace for the use he allowed us to make of his collection of Skinner's fossils. Fossils from Skinner's and Dreir's. Gasteropoda. Semiactaeon microplocus.Cossmann Cithara, sp. Btillinella angustata, T. and C. Cancellaria platyijleura, Tate Bullinella infundibulata, Cossmann Cancellaria varieifera, T. Woods Btillinella aratula, Cossmann Cancellaria epidromiformis, Tate Bullinella cuneopsis, Cossmann Ancilla pseudaustralis, Tate tJmbraciilum australe, Harris Marginella wentworthi, T. Woods Conus pullulescens, T. Woods Marginella winteri, Tate Conus cuspidatus, Tate Marginella luiciila,. Tate, var. Conus, sp. Marginella, two spp. Bathytoma angustifrons, Tate, var. Volutilithes antiscalaris, McCoy Columljarium acanthostephes, Tate Voluta weldii, T. Woods Columbarium craspedotus, Tate Voluta maccoyii, T. Woods Pleurotoma clarae, T. Woods Voluta conoidea, Tate Pleurotoina murndaliana, T. Woods Mitra atractoides, Tate, var. Pleurotoma trilirata, Harris Uromitra paucicostata, Tate Pleurotoma, n. sp. Uromitra, two n. spp. Pleurotoma, sp. Fusus dictyotis, Tate Borsonia, sp. Fusus senticosus, Tate Drillia sandleroides, T. Woods Latirofusus exilis, Tate Drillia stiza, T. Woods Fasciolaria, sp. Drillia integra, T. Woods Latirvis salebrosus, Harris Drillia, three spp. Siphonalia, n. sp. Buchozia hemiothone, T. Woods Phos tardicrescens, Tate Cordiera conospira, Tate Phos (?) n. sp. Daphnobela gracillima, T. Woods Nassa tatei, T. Woods Mitromoi-pha daphnelloides, T. Coliunbella funiculata, T, Woods Woods Columbella, five spp. Mitromorpha, two spp. Trophon, sp. Clathurella bidens, T. Woods Miu-ex rhysus, Tate Clathurella, two spp. Murex lophoessiis, Tate Mangilia, spp. Murex polyphyllus, T. Woods 1 Tertiary Deposits of the Aire and Cape Otway. R.S.V., vol. xiL, n.s., 1899. Geology of the Lower Mitchell River. 41 Mixrex, n. sp. Lampusia "woodsii, Tate Lampusia tortirostris, Tate Lampusia geinmulata, Tate Apollo prattii, T. Woods Cassis exigiia, T. Woods (?) Cypraea gigas, McCoy Cypraea leptorhyncha, McCoy Cypraea eximia, G. B. Sow. Cypraea parallela, Tate Cypraea pyrulata, Tate Trivia avellanoides, McCoy Triforis wilkinsoni, T. Woods Triforis sulcata, T. Woods Triforis, sj). Cerithium ajDheles, T. Woods Colina, two spp. Newtoniella eusmilia, T. Woods Newtoniella cribarioides, T. Woods Newtoniella, eight spp. Thylacodes conohelix, T. Woods Tenagodes occlusus, T. Woods Turritella platyspira, T. Woods Turritella murrayana, Tate Turritella tristira, Tate Turritella acricula, Tate Torinia, sp. Eissoia tateana, T. Woods Eissoia, five spp. ^ Eissoina, two spp. Calyptropsis tiu-binata, T. Woods Natica hamiltonensis, T. Woods Natica polita, T. Woods Natica subinfundibulum, Tate Scalaria, spp. Crosseia (P) sp. Eulima danae, T. Woods Eulima, two spp. Niso psila, T. Woods Pyramidella, n. sp. Odontostomia, sp. Eulimella, two spp. Turbonilla, sp. Turbo, n. sp. Collonia parvula, T. Woods Collonia, Bp. Cantharidus, three spp. Gribbula, three spp. Trochocochlea, sp. Chlorostoma (?) sp. Calliostoma, three spp. Astele, two spp. Euchelvis, sp. Liotia roblini, T. Woods Tinostoma, sp. Fissurellidea malleata, Tate Emarginiila wannonensis, Harris Emarginula, two spp. Subemarginula occlvisa, Tate Subemarginula, n. sp. Dentalium mantelli, Zittel Dentalium aratum, Tate SCAPHOPODA. Dentalium lacteolum, Tate Lamrllibranciiiata. Ostrea hyotidoidea, Tate Dimya dissimilis, Tate Spondylus pseudoradula, McCoy Lima bassii, T. Woods Limatvda jeffreysiana, Tate Pecten murrayanus, Tate Pecten foulcherj, T. \yoods Pecten consobrinus, Tate (?) Pecten sturtianus, Tate (?) Amussium zitteli, Hutton Hinnites corioensis, McCoy (Jrenella singularris, Tate Septifer fenestratus, Tate Philobrya bernardi, Tate Plagiarca cainozoica, Tate Barbatia celleporacea, Tate Barbatia crustata, Tate Barbatia simulans, Tate Cucullaea corioensis, McCoy Glycimeris cainozoica, T. Woods Glycimeris laticostata, Q. and G. Limopsis forskali, A. Adams Limopsis morningtonensis, Pritchard Nucula atkinsoni, Johnston Leda apiculata, Tate Leda vagans, Tate Leda obolella, Tate Trigonia semiundulata, Jenkins. Trigonia tubvilifera, Tate Cardita delicatvila, Tate Cardita polynenia, Tate Cardita compacta, Tate Carditella (?) sp. Mytilicardia, two spp. Crassatellites dennanti, Tate Crassatellites communis, Tate Chama lamellifera, T. Woods 42 Proceedings of the Royal Society of Victoria. Meretrix, n. sp. Corbiila ephamilla, Tate Chione dimoi-phophylla, Tate Corbula pyxidata, Tate Chione cainozoica, T. Woods Panopaea orbita, Hutton Chione, n. sp. Cuspidaria subrostrata, Tate Mactra howchiniana, Tate Myadora tenuilirata, Tate Palliobranchiata. Magellania garibaldiana, Davidson Terebratulina sp. Magellania grandis, T. Woods Magasella woodsiana, Tate Magellania insolita, Tate Magasella compta, G . B. Sow. Terebratulina scoulari, Tate ECHINODERMATA. Clypeaster gippslandicus, McCoy Eupatagixs miirrayensis, Laiibe Monostychia australis, Laube Astrophyton sp. Echinolampus sp. Antedon sp. ACTINOZOA. Flabellum candeanum, Edw. and H. Conocyathus scrobicnlatus, Dennant Flabellum diincani, T. Woods Deltocyathtis viola, Duncan Flabelkim victoriae, Duncan Trematotrochvis fenestratus, T. Placotrochiis deltoidens, Dvmcan Woods Sphenotrochus australis, Duncan Balanophyllia sp. (juv.) Sphenotrochus emarciatus, Duncan These fossils indicate of course that Skinner's and Dreir's beds are of the type of the Muddy Creek, Murray River, Shelford, Mornington, and some other eocene deposits, and they thus come under Messrs. Hall and Pritchard's division — Balconibian. A well was sunk for water at Little Brothers' sawmill which lies back from the river about a mile to the north of Skinner's. The surface is 146 feet above sea level and the depth of sinking 92 feet. The strata disclosed are : — Clay --.---.. 4 feet Drift, with occasional ironstones containing Magellania garibaldiana and other eocene fossils - - - - - 66 ,, Calcareous sands, with numerous casts of shells 22 ,, Total 92 feet. At this depth brackish water was struck. Geology of the Lower Mitchell River. 45 XI. — Saunders' Bluff. That this bluff marks the last appearance of the tertiaries on the north bank of the river has already been alluded to. Farther west this bank is entirely occupied by devonian rocks and the river channel from Moitun Creek to Flaggy Creek thus outlines the boundaries of the two formations : the present stream flows now on one side of the flats and then on the other, the gorge itself being from two to three miles wide. The river turns south east at Moitun Creek, and then, as we have seen, flows for some miles along the line of junction between unconformable strata. This would probably be the easiest course for the river to take, and its initial deflection to the east at Moitun Creek may have been thus determined. Saunders' Bluff is 150 feet high, and up to the top of the iron- stone, or for 110 feet, it stands out as a bold cliff on the river bank. The strata consist of : — - Sand Fossiliferous ironstone - - - - Coloured and banded drift, and pebbles - Ferruginous soft red sandstone to river level Total 1.50 feet. The height of the river above sea level is here 52.49 feet. For a drawing of the section at Saunders' Bluflf see Fig. 13. The bank is too steep to he examined in full detail, but we obtained fossil casts partly from ironstone blocks now lying at the base, but fallen from above, and partly from those in situ near the top of the fossiliferous strata, that is, at a height of 162 feet above datum line. Fossils prom Saunders' Bluff. Conus sp. Crassatellites dennanti, Tate Turritella miirrayana, Tate Meretrix eburnea, Tate Pecten foulcheri, T. Woods Meretrix, n. sp. (also at Skiuner's) Cardita polynema, Tate Bryozoa spp. Mytilicardita sp. (also at Skinner's) XII. LiNDENOW. Just opposite Saunders' Bluff", on the south bank of the river,. an interesting outcrop of ironstone occurs. Between the twO' 40 feet 20 „ 84 „ 6 „ 44 Proceedings of the Royal Society of Victoria. sections stretches a wide extent of the fertile Lindenow fiats, bounded on the north by the Bluff, and on the south or Lindenow side by a sloping bank, which is covered by a thick alluvial deposit. The ironstone commences at about 60 feet up the bank, iind is traceable along a narrow river terrace as far as Moitun Creek on the west, as well as for a long way eastward. At Lindenow the band is fairly massive, and from 15 to 20 feet thick. Owing to small quarrying operations, the face is well •exposed, and though we spent only a few hours at the spot, we were able to collect many easily identifiable casts. The section was examined at an early stage of our work, and the results obtained had a large share in convincing us that the ironstone casts on the Mitchell banks from Boggy Creek westward simply represent the eocene forms, which, either in the limestones or in the shell beds at Skinner's and Dreir's, are in most cases still preserved unaltered. We have seen no clearer casts anywhere than at Lindenow, and the palaeontological evidence is thus specially decisive. Fossils from Lindenow. Vohita weldii, T. Woods Siphonalia (?) sp. Cohimbella (?) sp. Mxirex lophoessus, Tate Lampusia anneetans, Tate Cassis exigua, T. Woods Potamides sp. Tiirritella niurrayana, Tate Tiirritella tristira, Tate Lima bassii, T. Woods Pecten foiilcheri, T. Woods Pecten sturtianus, Tate (?) Glycimeris laticostata, Q. and G. Trigonia semiundiilata, Jenkins. Cardita sp. Meretrix ebiirnea, Tate (?) Chione etheridgei, Pritchard Chione sp. (also at Skinner's) Corbida ephamilla, Tate Cuspidaria subrostrata, Tate Myadora australis, Johnston Limulites rutella, T. Woods Paradoxechiniis novus, Laube Placotrochus elongatus, Duncan Placotrochiis deltoideus, Duncan On one occasion when driving along the Lindenow road we observed ironstone rocks cropping out on a grassy bank about lialf a mile to the south. Leaving the buggy on the road we walked over to the spot and broke up a quantity of the stone. After a prolonged search we found a few fossiliferous blocks, which shewed casts of species identical with some we have recorded from the neighbouring section. Geology of the Lower Mitchell River. 45 XIII. — Summary and Conclusion. 1. The western boundary of the Gippsland miocene is extended at least as far as Bellevue and Rose Hill. Its exact limits in that direction are not determined, but farther up the river every section examined discloses only a lower tertiary fauna. The highest level at which miocene fossils are recorded in the area is at Knight's, and about 160 feet above sea level. At the mouth of Boggy Creek the river cliff is 194 feet above level, and the eocene strata are continuous up to its summit. Farther west the country still rises, and just beyond Boggy Creek reaches 230 feet,. and finally at Moitun Creek 330 feet above datum line. Iron- stone blocks, containing eocene fossils, were traced up to an elevation of about 160 feet in both these localities. 2. Since we dissent from Sir F. McCoy's classification of the Moitun and Boggy Creek ironstones as upper miocene or lower pliocene, we cannot accept the theory, apparently founded upon it by Mr. Howitt, viz., that the Bairnsdale limestone is denuded on its north limit and overlain by the Moitun Creek group (1). Professor McCoy determined the age of this group on palaeon- tological data, but the Report (1) contains no list of the species submitted to him. As a fact, a reliable cla.ssifi cation of the Mitchell beds was scarcely possible at the date of the Report (1874). Compai-atively few species were known from the Victorian tertiaries generally, while the molluscan bed at the base of the Skinner's section was then practically unworked. The latter of course supplies the key for the interpretation of the Moitun and Boggy Creek casts. Again, from Lindenow up to Moitun Creek, the Bairn.sdale limestone is entiiely wanting, and the river banks show instead, on the south, ferruginous sands resting directly upon devonian strata, and on the north, the latter rocks only. From Bellevue eastward there is, on the contrary, evidence of the ero.sion of the limestone before the deposition upon it of the so-called upper pliocene (really miocene) beds, and to this extent we are in accord with Mr. Howitt. The following table shews the classification of the Mitchell tertiaries as given in the Reports (1 and 2), and by ourselves in the present paper. 46 Proceedings of the Royal Society of Victoria. McCoy. wnwiff Dennant and HOVMtt. 1 pj^^j^ Jemmy's Point JBellevTie and Eose Pliocene Upper Pliocene ^ Miocene Hill Moitun Creek and Boggy Creek IBairnsdale limestone Skinner's and Dreii-'s Upper Miocene or Lower Pliocene Middle Miocene Lower Pliocene > Middle Miocene 1 > Eocene 3. The Mitchell River gorge from Moitun Creek downwards has, no doubt, been carved out in post-miocene times, and the drifts and coarse gravels of the terraces, as well as of the country bordering them, have been mainly transported by streams from the northern hills or by the river itself. 4. On the final elevation of the land at the close of the miocene period, the difference in level between Moitun Creek and the sea does not appear to have been much greater than at present, otherwise the river would have cut a far deeper channel than it has. Say the difference was 150 feet greater, then in such soft material we should expect a wide and deep channel to be cut, which afterwards would be filled up with sediments when the land subsided. There is no evidence of this. At East Bairnsdale, borings have been carried to a depth of 250 feet, or from 180 feet to 200 feet below sea level. Now, at a depth of 150 feet, or not more than 50 feet below sea level, eocene shells were struck. These included Clypeaster gippslandicus, a common form in the Bairnsdale limestone. Further, the Nicholson and Tambo rivers, which, even now in places, as at Swan Reach, flow betw^een eocene and miocene cliffs, have certainly no deep recent beds beneath them, such as they should have if the country had once been 150 to 200 feet higher and then had subsided to its present level. The local evidence is thus opposed to the theory of a former superior elevation of the land, except of course by the amount due to ordinary subaerial denudation. Pfiir. K.S. Virtoria, PML I'Intr IT. Proc. R.S. Victoria, /.W.j'. Flute 111. Si ST) ^ I'ror. U.S. Virtnrio, I9(i:i. I'h'lv IV. Jf Section across Gully AT Underwoods /V\ J Houi[ ^Pt*^t5^ ^OiSil bloc UNDcnnOOD *5 lift —^^^ mfe,i ffn'er- tevel — ^ Section of Underwoods Cliff ReQ \y Crave I y^a i^ loofl dllernitf bea of hird and dayty limeihne U.S. Victoria, PJO:;. I'lah' V Sect/ ON across Boggy Creek Inmstime tpedilej fine white sand fine sand wM /s- /erruf/ nous fit fifs Ift fine :,and t ^hat/ /romCone laye. ill /rvniUne i ^'°y^^j f/l fine davelintnnstcnej^ 411 Clayey lronstDne(foiiilifeioui)A EAC,r J — I Ton it one i>ands ;f="-^=~ , ^tyinij a chocolate Sal _ <; J -, rl? Q ? 5 § ^ 2 r^ vo >.i ^ -^ s 5 c \V V ' S -c _^ «j W 1 1 '^ "" .'J \/>^ ' -cr ^ % \ %':/.,, J \ ^ ^ ^ § 1, !'§ C ■^ 1 * l| 1 1 •r, *i 1 J III ll Of Mitchell AND Mo/TON Cr 1 iMi' 1 '^v? -1 ?l ECTION Uiiv ^-^^Jk ^' ^ - ' ' I'nic. R.S. Victoria, 19(j:>. I'hitc VI. cP Section at Morrisons Bluff M 01 TUN Crfek i^.e^l- Gnvels ■^ Hill ritiny to 250 ft /ronHone fomliferous -^ yelioa and arid cUy r;^grg^E~-- HirU ifiily rock ■--^ /eHiUftroui Concjlamtntt fine veltor/ and 5. Contact of Tertiary and Devon/an , Moitun Creek Longitudinal Section fossilile Ironstones with Fossils _ _ „ ,, ,, T-- -, , / — 48 ft Devontdn Shatei Cravel^ ^ Fossils 2 Conglomenles thinning out Sand 'e end 6ri/U* Froc. R.t). Vidoriu, l^ ^ 4j -Q 1 C -< 5, \ §- i> 2"- 1 "s >3 •X A ^ o s ^ i Is 3 1^1 "5: ■ III o 1 [L ^ ^^ U^ 4)1^ ^^'1 ' t'l'"'^ ::: o. 5 j^j $ ^^di ■ ..■»■ %l ^ ^ ■< ^ 1 "^ s^ lit f -h K s^ ^-4UU' ' 1 ■■ "^ ^J ^1\r-\^ W^ 1 5 ^ "^ ^. :^ ::^ (f Pror. R.S. Vlrt) 17 to 10 >) 100 feet. 4 50 Proceedings of the Royal Society of Victoria. These conglomerates are clearly iiiterbedded with the ordinary Palaeozoic rocks. They are jointed, so much so, that it is difficult to extract pebbles whole. Joint planes can be traced through the pebbly mudstones and conglomerate, and on one of these a thin vein of quartz has since formed. This quartz vein is most easily seen in the pebbles and can be clearly seen crossing older quartz pebbles. Crumpling in the lamination of the finer beds was noticed, but they are not often visibly laminated. At places a pebble is indented by a neighbouring pebble. Locality No. 2 is some little distance down the river just before the basalt forms the river bed. The conglomerates are here exposed in a low bank and on the shelving surface of rock near the water and liable to be covered. It is marked on the Quarter- sheet. A conglomerate bed, al)out 15 feet in thickness, contains pebbles similar in shape and material to the others described, the pebbles reaching a size of about 6 inches. Below it is a patch of pebbles at a distance of about 2 feet. About 30 feet further east (higher in the beds) a band occurs of pebbly beds 2 feet 9 inches, congloinerate 2 feet 3 inches, pebbly beds 2 feet, these layers merging into one another. The matrix of the pebbly beds is here more sandy. The pebbles reach to about 9 inches diameter. Locality No. 3, on the right bank of the Deep Creek a little above the junction. Here are scattered pebbles, some flat faced, in a compact mudstone matrix. The whole thickness seen was about 8 feet. In it is a band of 7 inches of sandstone without pebbles. Its strike, if continued, would take the beds west of the locality 5. Locality No. 4, close to the granite in Deep Creek. All the rocks are much indurated to a hardness comparable with the pebbles and on old surfaces pebbles .seldom stand out and are not easily noticed. The hardness and splintery character of the altered rock makes examination difficult. Some of the pebbles are flat sided ; the largest pebble noticed was of quartz about 8 inches diameter. The bed observed hud a thickness of about 10 feet, it is close to a large granite dyke. Quartzite with pebbles and a rock, which miglit represent the pebbly mudstones, are also present here, as blocks may be seen in the creek. The general character, so far as was seen, was similar to what might be On Certain Conglomerates near Sydenham. 51 expected from material like that at locality No. 1, altered at the granite contact. The general dip here is easterly at about 60°. At localities 5 and 6 I did not see the conglomerate. At locality 7, conglomerate is seen on the right bank of the Saltwater north of Keilor township. The pebbles, to about 10 inches in size, are mainly quartz and quartzite, similar to those at No. 1, in a matrix mostly sandy, but I did not notice any pebbly mudstones. The northerly extension marked on the quarter sheet is mostly under an alluvial fiat. About the southern end also little rock is exposed. At the point where they were observed the dip is about 50° westerly and the strike east of north. The thickness exposed is about 10 feet. The beds immediately below are mudstones without pebbles and above sandstone without pebbles and again a thin conglomerate bed. Glacial Origin of the Pebbly Beds. The manner of occurence and distribution of the pebbles through the mudstones suggests at once a glacial transport. The pebbles are of various sizes and in various positions and are embedded in and scattered through a matrix which, even when sandy, would have been completely removed by any current compe- tent to move the pebbles. Only exceptionally are the pebbles so crowded that fine material could have lodged among them and this crowding is only in patches. The general aspect, expect as to inclination, is very similar to parts of the glacial deposits of Bacchus Marsh and elsewhere. They agree also very closely with the description recently given by Mr. Howchin' of certain supposed Cambrian glacial beds near Adelaide, only that here the pebbles do not reach anything near the same dimensions. Glaciated pebbles and some striated occur, associated indeed with many rounded ones, and an examination of the matrix in the lower pebbly mudstones at locality 1 shows that it is clear and sharp, rather abraded than weathered material. Some of the pebbles show crystals of pyrite ground down but not decomposed. While no other explanation except glacial transport seems practicable for the general characters of the deposit, the relations to the beds above and below preclude any idea of accumulation 1 Trans. Royal Society S.A., vol. xxv., pt. i., 1901. 52 Proceedings of the Royal Society of Victoria. on land. The mudstones containing the pebbles and sandstones between them at locality 1, and as far as noticed elsewhere, are essentially part of a continuous series extending both above and below them, under generally similar conditions, undoubtedly marine. We are therefore limited to transport by floating ice, not by land ice. With this agrees the disturbance of the fine sandstone near the top of the series at locality No. 1, which would be ascribable to stranding of the floating ice. The disturbance is quite different from that which I have before ascribed to differences of rigidity under folding in the Ordovician rocks. ^ While icebergs from extensive ice sheets and glaciers often carry little foreign material compared with their bulk, the case is essentially different with shore ice and river ice. Nor are the glaciated stones sufficiently numerous or distinct to regard the ice as the only agent operating. The following description of the Yukon by Mr. I. C. Russell seems to fulfil the conditions of this case. The Yukon " freezes deeply during the winter and the ice near its borders, especially when it is broad and shallow, rests on the bottom and has large quantities of stone and boulders attached to it. All except the largest of the tributory streams freeze to the l^ottom and also furnish vast quantities of pebbles for ice transportation. When the rivers break up in the spring, the ice with its loads of stone is floated down stream, and melting, as it goes, distributes pebbles and boulders over the bottom of the river and in places where at other times fine sediment is deposited. In this way it is conceivable that a clay filled with boulders might be formed which would simulate true boulder clay in many ways. Certain boulder clays along the Yukon and the Lewes are described elsewhere in this paper, which, as there stated, may have been formed in the manner here suggested. "- Now, it will be evident that the formation of such a deposit resembling boulder clay will not he limited to the course of the river i)ut may occur as far as the ice can reach in floating out to sea and that shore ice may behave in just the same manner. The 1 Proc. Royal Society Vic, vol. xiv., pt. ii ii.s. 2 Bull. Geol. Soc. Amer., vol. i., 1890. On Certain Conglomerates near Sydenham. 53 materials carried will be firstly river gravels or coast shingle as the case may be, but among those from the river glaciated stones may occur in two ways. It is noted on the Yukon, by the same writer, that stones embedded in the clay on the banks become ground on one side by the stranding of river ice, especially in. spring floods while ice barriers still exist in the river. The material also in the river may itself be largely derived form glaciers, as the nature of the mudstone matrix would suggest in this case. The pebbles will naturally be more numerous in mudstones because first the mudstone being more slowly formed than the sandstone as a rule, more ice is likely to float across it while a given thickness is deposited, and, secondly, because the current being more gentle more of the ice is melted as it passes over it at a slow speed. No indentation need be seen on the beds even if they are laminated, for the stones may sink gently with ice still attached. A minor arrangement of the pebbles as continuous bands may readily occur by the drift ice being more abundant at certain times or a tendency of the ice to accumulate at certain places. The character of the pebbly mudstones and sandstones is just what might be expected off" a coast along which the climate was such that considerable rivers could freeze to the bottom in winter and much shore ice could be formed. Such a condition may be associated with neighbouring general glaciation as at present in Alaska, where glaciers occur south of the Yukon. The moderate size of the largest boulders also favours this view. The formation of the heavy conglomerate under such conditions may be due to ordinary current transport, and the erosion of the underlying mudstones favours this view. The stranding of ice would however assist, when by gradual melting at one place, a heterogeneous mass of gravel of all sorts and sizes would readily accumulate, and the stranding and the rocking of the stranded masses might also have caused the erosion. The severe climatic conditions might also contribute to the complete break in the fossil fauna which seems to occur about this horizon. These evidences of glacial action occur at the localities Nos. 1, 2, 3 and 4, but I did not notice them at No. 7 (Keilor). 54 Proceedings of the Royal Society of Victoria. Source of the Material. The materials of the pebbles require for their supply a land surface of sedimentary rocks already invaded and altered by igneous rocks and with volcanic rocks also exposed. The altered sedimentary rocks are represented by the quartzite, poi'cellanite and lydianite ; the igneous by the quartz porphyry, greisen, a peculiar line graphic granite, and a vascular fragment. Vein quartz also occurs. The land area of Heathcotian rocks, as recently described by Dr. Gregory^ may have provided these materials. The position of the beds is in the gap existing in Upper Ordovician times in the ridge southward from Lancefield ranges. Age op the Conglomerates. In a former paper referring to these conglomerates, I stated that their Ordovician age was uncertain. The Quarter-sheet appears to show all the palaeozoic rock in 7. S.E. as "Lower Silurian" a number of fossils being recorded at the north-west corner of the sheet. As the whole of the bedrock exposed along the Saltwater in 2. S.W. is mapped as "Upper Silurian" the question of the actual contact appears to be avoided. There is a fossil locality Ba60 marked on the Deep Creek (close to locality 5) of which I have found no mention in published reports, but it would support, no doubt, the extension of the "Lower Silurian " colouring to the Deep Creek, which is near the east side of the sheet. On a copy of 7 S.E., at the Melbourne Public Library, I found that the Lower Silurian colouring stops a short distance before the edge of the Quarter- sheet (at the line J on the locality map), a small space being left uncoloured. In all other copies I remember to have seen the "Lower Silurian " colouring extends to the edge of the sheet. On visiting the locality, this part of the river channel looked at first very unpromising for rock exposures, alluvial material being abundant ; but the river being low, a small outcrop of rock was found exposed on the right bank close to the water within the area uncoloured on the Public Library map. A rough observation of strike and dip gave strike about N. 30° W. dip 1 Proc. Royal Society Vic, vol. xv., pt. ii., n.a. On Certain Conglovierates near Sydenham. 55 easterly at 47°. About 15 chains to the N.W. the beds exposed on a steep bank appear to strike N. 5° W. and are nearly vertical. Directly over this, in a track cut up the hillside, the apparent dip is only 35° easterly, but this may be due to slipping on the steep hillside. Higher up stream a good exposure gave a strike N. 10°, W. and dip about 70° easterly, not westerly, as shown here on the Quarter-sheet, and, from here up, high dips are the rule. Down stream in sheet 2 S.W. there is at first an easterly dip about 45° becoming much less further on, and continuing moderate as far as Keilor. The position then at which the colouring ends on the Public Library copy is the boundary between the general high dips on the north-west and the moderate or low dips on the south- east. With the river at a higher level this boundary might easily have been placed further east at the edge of the quarter sheet. About a mile to the north west (H on map) a strike N. 18° W. dip about 30° easterly occurs in a low cliff, but near the water's edge the dip is 70° easterly and the strike different, considerably nearer to north. Between the places of these observations there is a fault to which the beds turn from both sides, but the observations were taken clear of all noticeable turning. The age of the conglomerates in 7. S.E. may then be regarded as Upper Ordovician probably mostly in slightly lower beds than the fossils of Ba60. Exact comparison of positions of different beds would be affected by faults which are probably common. The conglomerate at Keilor is close to localities from which "Upper Silurian " fossils are recorded. Going north from locality 7 the strata exposed form an anticline with a strong northerly pitch, dips and strike being apparently very variable : at one place strike N. 82° E., dip 35° northerly. The beds exposed to the north are therefore newer, and the Keilor conglomerate is probably near the lowest beds exposed in the Silurian area within the limits of the area under consideration. Two explanations of the relations of the two series might be offered. The moderate dips and irregular strikes of the upper beds may be due to their occupying a crumpled syncline, of which the older beds to the west form one flank, with a steeper, more regular, dip and .strike. This receives some support from the fact that some 56 Proceedings of the Royal Society of Victoria. miles higher up the Deep Creek high dips are prevalent in areas mapped as " Upper Silurian." The alternative is that we have here two distinct series, one of which dips less steeply than the other and rests unconforniably on it (at J an unconformity could be avoided by a faulted junction such as occurs at H). That they are two independent series is more likely, for the relations of the dip and strike of the two series at J and H are very similar and agree well with what would occur on a parallel anticline to that of Keilor, also with a northerly pitch, whereas in irregular minor crumpling in a syncline such correspondence seems unlikely. I have already mentioned that I did not notice glacial evidences at Keilor. The material seemed to have been derived from the same land surface as the other conglomerates, not necessarily under the same conditions. I am not aware of any previous notice of glacial conditions in Ordovician time in Australia. An occurrence of probably glacial origin is described by Mr. W. Howchin, F.G.S., in Kangaroo Island,'* wliicli is older than the prevailing glacial series there, but, though its age is uncertain, it does not seem to be referaV)le to quite as early an age as this. The series more recently described by him near Adelaide, and already referred to, is regarded as Cambrian on the general weight of the evidence. There are a number of Victorian localities at which the existence of glacial rocks has been noticed without much evidence as to the relations to other beds. No doubt the majority of these belong to the Bacchus Marsh series, but the existence of others of this series is also possible. s Tran. Roy. Soc. S.A., vol. xxiii., pt. ii., 1899. rriic. U.S. Victoria. ll)u:i. Plal,- IX. K« Slot Locality Map. p«RTOF Keilor Plains Scale ,, 5<^ Ml Art. IV. — On the Occurrence of Striated Boulders in the Penno-Carboniferous Rocks near the mouth of the Shoalhaven River, New South Wales. By E. 0. THIELE. [Read 9th April, 1903.]. Since 1859, when Dr. A. R. C. Selwyn^ recorded indications of ice action in the Inman valley, in South Australia, fresh evidence has been forthcoming from various sources, indicating wide- spread glacial conditions in the Permo-Carboniferous rocks of Australia. In Eastern Australia boulder beds exist as far north as the Bowen River Coalfield, Queensland,^ and are well-known at several places in New South Wales,^ notably at Branxton and Lochinvar ; while in Victoria, the Bacchus Marsh* deposits are the most extensive and best-known among the somewhat numer- ous occurrences of smaller area in various parts of the State. In Tasmania again, the glacial beds are widely distributed, being well-developed at Maria Island,^ Little Peppermint Bay,® and at Wynyard.'' 1 " Geological Notes of a Journey in South Australia, from Cape Jarvis to Mount Serle." A. R. C. Selwyii, Parliamentary Paper, No. 20, Adelaide, 1859, p. 4. 2 "Report on the Bowen River Coalfield." R. L. Jack, F.G.S., p. 7, par. 39, Brisbane, 1879. 3 " Evidence of Glacial Action in the Carboniferous and Hawkesbury Series, in New South Wales." Professor T. VV. E. David, B.A., F.G.S., Q.J.G.S., vol. xliii., pp. 190-196. "Glacial Action in Australia, in Permo-Carboniferous Time." Professor T. W. E. David, B.A., F.G.S., Q. J.G.S., vol. Hi., pp. 289-301. " Discovery of Glaciated Boulders at the base of the Permo-Carboniferous System, Lochinvar, New South Wales." Prof. T. W. E. David, B.A., F.G.S., Jour. Roy. Soc. New South Wales, vol. xxiii., p. 154. 4 Note. — The papers on the Bacchus Marsh Deposits are extremely numerous, c.f. Note on the Bibliography of the Bacchiis Marsh Deposits, by T. S. Hall, M.A., in the Victorian Naturalist, Melbourne, 1894, pp. 125-128; and a note also by A. E. Kitson, F.G.S., in his paper on the Glacial Beds at Wynyard, Tasmania. Proc. Roy. Soc. Vic, vol. xv. (n.s.), Pt. I., 1902, p. 30. 5 Note on Fossils from Maria Island, with evidence of glacial action consisting of huge ice-born erratics eml^edded in rocks of Permo-Carboniferous age. R. M. Johnston, F.L.S., Proc. Roy. Soc. Tas., p. 20, 1884. Notes on the Geology of Bruni Island. R. M. Johnston, F.L.S., Proc. Roy. Soc. Tas., pp. 18-26, 1886. •! The Glacial Beds of Little Peppermint Bay, Tasmania. Prof. E. G. Hogg, M.A. Report of Secretary of Mines for Tasmania, 1900-1, and Proc. Roy. Soc. Tasmania, 1902. 7 On the Occurrence of Glacial Beds at Wynyard, near Table Cape, Tasmania. A. E. Kitson, F.G.S., Proc. Roy. Soc. Victoria, vol. xv., (n.s.), pt. i., 1902. 58 Proceedings of the Royal Society of Victoria. The rocks referred to in this paper occur along the New South Wales coast on the south side of the present outlet of the Shoal- haven River at Crookhaven. They form a small headland on which the Crookhaven lighthouse stands and also stretch a short distance southwards, as a somewhat bi'oken line of low cliflFs. Further south, the coast is low and stretches as a sandy beach for some miles, beyond which, again, the higher cliffs in the neighbourhood of Jervis Bay run out to sea. To the north of the Shoalhaven entrance, another stretch of sandy beach extends in the direction of Gerringong, where the well known fossiliferous tuff beds of Black Head form an important feature of the coast line. The area under consideration is mapped as Perrao-Carbonifer- ous, and the late C. S. Wilkinson^ in referring to this part of the coast line says "At Wollongong, Kiama, and on both sides of Jervis Bay, the marine beds of the Lower Coal Measures occur," The rocks consist of more or less horizontally bedded dark coloured argillaceous sandstones, but just to the south of the Crookhaven headland, there is a slight arch with the axis running out to sea, and a little to the north of this line, the marine platform is cut into by a channel, about half a chain wide, running more or less at right angles to the coast line and evidently due to the more rapid weathering of a dyke. A small remnant of what appears to be portion of the igneous rock in situ, protrudes through the sand in the centre of the channel towards the shore end ; it consists of a fine grained greenish grey rock. The shore shingle consists of a great variecy of rocks and an examination of the marine platform shows it to contain rocks of the same nature, embedded so firmly, that it was extremely diffi- cult to extract them without injuring or breaking them. These boulders are of all sizes, from small pebbles up to blocks a foot or more in length ; many are smoothed, but sometimes only on one or two sides, while in shape they are mostly irregular, often somewhat triangular and elongate. Various kinds of igneous and metamorphic rocks, such as porphyritic and granitic rocks, schists and quartzites were observed, but time did not permit of extensive collecting. A few likely boulders however were extracted and fortunately several showed distinct polishing, with 1 Notes on the Geologj- of New South Wales. C. S. Wilkinson, K.G.S., F.L.S., Depart- ment of Mines, Sydney, 1882, p. 51. Striated Boulders near Shoalhaven River. 59 grooving and striation on the underside ; the others were so coated with oxide of iron, that any tine markings which may have been present were completely masked. One of the best specimens consisted of a block of quartzite, which before removal measured over 12 inches along its greatest length ; the top side was rough and irregular and it was rather badly jointed, so that it broke into several pieces on being chiselled out. The under side was polished, grooved and tinely striated, while several of the sides were faced and imperfectly smoothed. Further south again at Jervis Bay, in the neighbourhood of the small township of Huskisson similar beds occur, but the boulders were not so numerous and none of the few examined showed striation. Some large granitic blocks however were observed resting on the marine platforn), and though these were not embedded they had evidently weathered out of the beds, for similar rocks of smaller size were seen I'/t situ. The largest of these loose boulders measured, roughly, about 6 feet by 2 feet by li feet. The rocks here are fossiliferous, several spirifers, and a Platychisma being collected. In 1861, somewhat similar features in rocks at WoUongong were described by the late Dr. T. Oldham^, and the beds were compared with conglomerates in the Indian Talchir series, but no striated boulders were recorded, nor was ice-action suggested at the time to explain the origin of the formation. Later, however, the glacial origin of the Talchir beds was more fully worked out, and in 1885, Mr. R. D. Oldham,^ A.R.S.M., of the Geological Survey of India, examined the New South Wales coal-bearing beds ; he established the glacial origin of the conglomerates at Branxton, WoUongong and elsewhere, and confirmed the correct- ness of the previous correlation of the Australian Permo- Carboniferous beds with the Indian coal-bearing series and their associated boulder beds. It appears then, that the presence of striated boulders in the beds at Crookhaven affords further evidence of the prevalence, in Permo-Carboniferous seas even in low latitudes, of floating ice, which, as it melted, dropped its load of stones on the muddy sea floor. 1 Mem. Geol. Survey of India, vol. iii., p. 209. 2 Record Geol. Survey of India, vol. xix., pt. i., p. 44. Art. V. — New or Little-knoivn Victorian Fossils in the National Museum. Part II. — Some Silurian Molluscoidea. By FREDERICK CHAPMAN, A.L.S., &c., National Musetun. (With Plates X., XL, and XII.). [Bead 14th May, 1903]. Certain of the species herein described as new forms undoubt- edly show a more or less close relationship to well-known European and North American types, both as to their general features and superficial ornament. The Victorian examples are here regarded as distinct only when they exhibit constant and well-marked, though often minute, characters of their own. At the same time it is our aim to point out their relationships, in order that the homotaxial affinities between the southern and northern forms may be kept in view. It should be remembered, however, that the value of a correlation between limited horizons in widely separated areas is liable to be unduly overestimated, since we have conclusive proof afforded us, by the detailed study of certain groups of Australasian fossils, as the Graptolites and the Glossopteris flora, that formations which appear distinct in the southern area include fossils which in the northern hemisphere, and especially in Europe, would be regarded as representing a mixed fauna or flora. In other words certain types of fossils occurring in older or younger formations in Eui'ope or India, may, in Australia be associated together in the same strati- graphical series.^ The species now under description fall into one or other of the two series of the Silurian, as defined by Professor J. W. Gregory,* 1 For a further discussion on this subject see T. S. Hall's Presidential Address, Section C, Austral. Assoc. Adv. Sci., Hobart Meeting, 1901, p. 165. 2 J. W. Gregory: "The Heathcotian," Proc. Roy. Soc. Victoria, n.s., vol. xv., pt. ii., pp. 170-3. New or Little-known Victorian Fossils. 61 Melbournian. Lingula spryi, sp. nov. ,, latior, sp. nov. Siphonotreta australis, sp. nov. Orbiculoidea selwyni, sp. nov. Craniella lata, sp. nov. Chonetes melbournensis, sp. nov. Yeringian. FenestoUa margaritifera, sp. nov, ,, australis, sp. nov. Stropheodonta (Brachyprion) lilydalensis, sp. nov. ,, (Leptostrophia) alata, sp. nov. Strophonella euglyphoides, sp. nov. Plectambonites transversalis, Wahlenberg, sp. ,, cresswelli, sp. nov. Chonetes robusta, sp. nov. A5^ cresswelli, sp. nov. TJncinulus stricklandi. Sow. sp. Class POLYZOA. Genus J*enesfe//a, Lonsdale. Fenestella mapgaritifera, sp. nov. (PI. X., Figs. 1-3). Specific characters. — Zoariuni funnel-shaped, rather short, the height being nearly equal to the breadth at the rim. Inner (poriferous) surface having straight, divergent branches ; bifurca- tion occurring on a length of about ten fenestrules. Zooecia in two series on either side of a prominent, beaded keel, and arranged in a curve close to the lateral borders of the fenestrules. The zooecia are prominent, papillose, with a central rounded orifice, and are usually disposed in fives on the sides of the fenes- trules. The latter are elliptical, or more rarely sub-quadrate. Di.ssepiuients at very regular intervals, and as a rule laterally coincident with one another, but occasionally alternate. External surface of the zoarium having straight branches, with rounded surfaces, and usually plain, but tending to become granulate. 62 Proceedings of the Royal Society of Victoria. Measurements. Average height of zoarium, 20 ram. Average width of zoarium, 25 mm. Diameter of a zooecium with vestibule, "06 mm. Number of fenestrules in a length of 10 mm. = 11 to 13. Number of fenestrules in a width of 10 mm. = 14 to 17. Affinities. — This species is clearly allied to F. fossula, described by Lonsdale from the Carbo-permian of New South Wales and Tasmania.^ The latter differs however, in the smaller number of the zooecia, in their more or less parallel arrangement, in the apparent absence of a prominent vestibule (Lonsdale's tig. 1. being that of a cast from the celluliferous face), and in the sub-rect- angular or long elliptical form of the fenestrules. The zoarium of F. fossula attains to a much larger size than F. margaritifera. In its prominent zooecia, and the tuberculated carinae the present species belongs to the type of F. retiformis, Schlotheim. Occurrence. — F. mai'garitifera appears to be of frequent occurrence (judging by the relative proportion of associated fossils, in the small collection in the National Museum from the localities cited) at the junction of the Worri-Yallock and Yarra, Oeol. Surv. Victoria, B 23 [587-8J ; and at Yering, Upper Yarra, Oeol. Surv. Victoria [592-5]. The matrix in which these fossils occur is an ochreous and somewhat indurated clay. The fossils are represented chiefly as casts ; in some instances, however, the original structure of the fossil is preserved. Horizon.- — Highest beds of the Silurian (Yeringian). Note. — In Smyth's Progress Report, Geol. Surv. Victoria, 1874, p. 34, Sir F. McCoy recorded two new species of Fenestella from the Upper Yarra District. Up to the present, the above species is the only new form which the writer has been able to discover in the Survey collections from that locality. Fenestella austral is, sp. nov. (PI. X., Fig. 11). Specific characters. — Zoarium funnel-shaped, somewhat elongate; surface undulate. Inner surface with circular, open zooecia 1 In Strzelecki's Phys. Descr. New South Wales, 1845, p. 26!), pi. ix., fij^.s. 1, la. New or L Ittle-knoiun Victorian Fossils. 63 arranged in two series as in F. subantiqua, d'Orbigny and F. antiqua, Goldfuss sp.; from four to six opposite each fenestrule. Branches slender and somewhat sinuous ; sharply keeled ; bifur- cating in an irregular manner, the angle often wide, the fission taking place usually at every fourth fenestrule. External surface non-poriferous ; branches with a rounded and fairly smooth surface. Measurements. Height of zoarium, about 13 mm. Width of zoarium, about 10 nun. Diameter of zooecium, .08 mm. Average number of fenestrules in a length of 10 mm. = 8. Average number of fenestrules in a width of 10 mm. = 12. Affinities. — In F. morrisii from the Upper Palaeozoic of Burra- good, New South Wales,^ we have a similar kind of branching, hut the zooecial arrangement is not so regularly serial as in our species, and the bi-anches have a feebly developed carina. The nearest allied form to ours seems to be F. multiporata, de Koninck (non McCoy),^ especially with reference to its strong carina and regularly arranged pores. The fenestrules are, however, elongate rectangular in the latter species, whilst in F. australis they are sub-rectangular to sub-elliptical, and further, the dissepiments in the latter form are wider. F. adraste, Hall and Simpson,'* from the Lower Helderberg Group, near Clarksville, New York, bears close comparison with our form ; the fenestrules, however, are smaller and more ovate, whilst the zooecia are not so numerous, and the carina flattened externally. Occurrence. — In the dark bluish limestone of Deep Creek, seven miles to the south-east of Walhalla, Gippsland. The material was collected and pre.sented by the Rev. A. W. Cresswell, M.A. [•~)89-91]. Also figured specimen [1205a]. Horizon. — Silurian (Yeringian). 1 McCoy, 1884, Syn. Carb. Foss. Ireland, p. 203, pi. xxviii., fig. 13. de Koninck, 1877, Pal. Foss. New South Wales (Transl. by David and Dun, 1S98), p. 135, pi. vii., fip. 8. 2 Op. cit., 1898, p. 134, pi. viii., fit;. 4. 3 Natural History of New York, vol. vi., 18S7, p. 48, pi. xx., figs. 19-22. 64 Proceedings of the Royal Society of Victoria. Class BRACHIOPODA. Genus Lingida, Bruguiere. Lingula spryi, sp. nov. (PI. X., Figs. 9, 9a). Specific characters. — Valves subovate, sides evenly rounded, with an acuminate border below the beak ; the latter only very slightly ridged ; broadly rounded anteriorly. Surface depressed convex, highest at the posterior third of the length, thence gradually sloping and becoming flattened towards the anterior border. Surface smooth, with numerous, but rather faint growth- lines. A faint frilling on the anterior margin, and on one or two of the curved areas between the growth-lines in the median region of the valve may be seen when the light is directed across the shell. Measukements. Length of largest specimen - - 7.6 mm. Width of largest specimen - - 6 ,, Thickness of united valves, about - 1.2 ,, Affinities. — The broadly spatulate form of the valve in this species recalls some of the broader varieties of L. attenuatus, Sowerby,^ but the latter form is typically narrower and more acuminate posteriorly. Another form with which ours may be compared, especially with regard to the surface convexity, is L. syniondsi, Davidson.'- The noteworthy differences which separate L. spryi from these species are the evenly rounded and almost circular anterior margin, and the radial frilling of the surface between the growth-lines. Lastly the L. perlata, J. Hall,'^ from the Helderberg group of Albany, U.S.A., resembles our form in the general outline of the valves, excepting that the above-named species has not such an evenly rounded anterior margin, whilst the concentric lines of growth are more deeply sculptured. Occurrence. — Found in the pale purplish argillaceous rock in and around Melbourne, namely, in the Swanston Street sewerage J In Murchison's Silurian System, 1839, pi. xxii., fig. 13; also Davidson, Brit. Sil. Brachiopoda, 1866 (Mon. Pal. Soc), p. 44, pi. iii., fi^'s. 18-i:7 (c./., fig. 19). 2 L. syniondsi, Davidson (Salter MS.), Brit. Sil. Brach., p. 45, pi. iii., figs. 7-17. 3 Palaeontology of New York, 1859, vol. iii., p. 1.56, pi. ix., figs. 3-5. New or Little-known Victorian Fossils. 65 excavations near Collins Stieet [598-9], and also at South Yarra (Yarra Improvements) — [596]. The similar colouration and appeaniiice of the rock from both localities point to the proba- bility of their being on the same geological horizon for although the Silurian rocks vary considerably in their lithological appear- ance in a vertical direction in these localities, they show persistent characters over the same zonal area. Collected by Mr. F. Spry, in whose honour the species is named. Horizon. — Silurian (Melbournian). Lingula latior, sp. nov. (PI. X., Figs. 10, 10a). specific characters. — Valve subovate, sides sloping outwards towards the anterior border, which is broad and well-rounded ; beak somewhat blunt but prominent. Surface smooth, strongly convex, and marked by a few faint growth-lines ; a few radial creases start from the umbo and traverse the greater part of the shell-surface. The impressions of the pedicle and protractor muscles are faintly seen on tlie shell. Measurements. Length of valve - - - 4 mm. Width of valve - - - 3.6 ,, Thickness about - - - 1.3 ,, Affiniiies. — The form of this shell is of the L. squamiformis type', but it is not so straight along the posterior border. It most I'esembies L. lata of Sowerby"'', from the Lower Ludlow rocks of England and Scotland, but differs from it in many points, and especially in the stronger convexity of the surface. Occurrence. — In bluish argillaceous rock, South Yarra (Yarra Improvements), Melbourne. Collected by Mr. F. Spry [59]. Horizon. — Silurian (Melbournian). Genus Siphonotreta^ de Verneuil. Slphonotpeta australis, sp. nov. (PI. X., Figs. 7, 8, 13; PI. XL, Fig. 1). Specific characters. — Pedicle valve bi'oadly ovate, surface highest near pedicle opening, sloping steeply to the sides and 1 Phillips: Geol. Yorkshire, 1836, vol. ii. p. 221, pi. xi., fig. 14. 2 In Murchison's Silurian System, 1839, p. 618, pi. viii., fig. 11. 66 Proceedings of the Royal Society of Victoria. gently towards the anterior border. The edges of the lateral shoulders nearly straight and meeting the boldly curving anterior margin at less than halfway from the umbo. Shell thin and wrinkled externally, boldly relieved by deep curved lines of growth, about 10 or 12, from their salient edges proceed numer- ous spines, of which only vestiges remain. There are also indications of surface pittings between the bases of the spines. Pedicle opening small, circular, and with a depression indicating the position of the underlying pedicle tube which pi'oceeds from it anteriorly (Fig. 8). Dorsal valve smaller, depi'essed-couvex, and sub-circular in form. The internal cast of the pedicle valve shows the position of the foramen at the summit of the valve, and a deep groove, the impression of the tul»ular canal. Measurements. Length of a pedicle valve - - - - 14 mm. Width of a pedicle valve - - - - 12.5 „ Length of a brachial valve- - - - 11 ,, Width of a brachial valve - - - - 9.5 ,, Length of a large brachial valve (figured) - 14 „ Width of a large brachial valve (figured) - 14.5 ,, Affinities. — In some respects S. australis seems related to S. anglica, Morris\ as for example in its relatively large size, the prominent lines of growth, and the pitted shell-surface. Our specimens differ in certain points which render them specifically distinct ; it is generally much larger than S. anglica, and it is nob so deeply nor so numerously pitted as that species. Occurrence. — Found in the hard black argillaceous rock, Domain Road, South Yarra (Sewerage Works), [903-609]. Also as casts, in brown micaceous sandstone, Swanston Street Sewer [600-1], and from the Sewerage Tunnel near Old Fish Market, Flinders Street [610-11]. Collected by Mr. F. Spry. Horizon. — Silurian (Melbournian). Genus Orlnculoidea, d'Orbigny. Orbiculoidea selwyni, sp. nov. (PI. X. Figs. 5, 6, 6a, 12). Specific characters. — Pedicle valve broadly elliptical. Apex excentric, situated at less than one fourth the length of tlie shell 1 Ann. Nat. HiRt., 2nd ser., 1849, vol. iv,, p. 320, pi. vii., flgs. lae. New or Little-knoiun Victorian Fossils. 67 from the posterior margin, directed backward. Foramen ellip- tical, with a post-apical groove which partially interrupts the lines of growth passing down towards the posterior margin, and emerging on the interior in a sipho. Surface gently convex on the anterior slope, abruptly depressed in the post-apical region. Surface with numerous, fine, concentric growth lines. Outline of brachial valve broadly elliptical ; apex centric, conical and strongly convex anteriorly, somewhat depressed in the post-apical region, liut recovering its convexity near the posterior margin. Concentric lines of growth distinct. The figure (5) of the pedicle valve is from an obliquely crushed specimen. Measurements. Length of pedicle valve figured - - 6.5 nun. AVidth of pedicle valve figured - - 3 ,, Length of brachial valve figured - - 6 ,, Width of brachial valve figured - - 4..5 ,, Height of brachial valve figured - - 1.5 ,, Observations. — The genus Orbiculoidea has been usually regarded by palaeontologists as a sub-section of Di-scina, Lam.arck. The researches of Mr. W. H. DalP, tend to show that the type species of Discini is D. striata, Schumacher sp. (non Sowerby) — D. ostraeoides, Lam., a recent form from West Africa and apparently the only representative of the genus. One of the chief distinctions between Discina and Orbiculoidea, pointed out by Messrs. Hall and Clarke", is the relative position of the perforation and and tlie direction of the pedicle furrow and tube. In Discina the pedicle valve is perforated behind the apex and the pedicle emerges antero-posteriorly. The rever.se is the case in Orbiculoidea, the pedicle furrow, situated just below and behind the apex and extending over a gieater or less portion of the valve, emerging postero-anteriorly. The furrow terminates in a tubular sipho which nearly reaches the margin of the shell Often there is a callosity surrounding the greater part of the internal tube. This structure is well shown in one of our speci- mens (Fig. 12). 1 Bull. Mus. Comp. Zool., Harvard Colleg'e, 1S71, vol. iii., No. 1. Hall and Clarke : Palae- ontology of New York, 1892, vol. viii., Palaeozoic Brachiopoda, pt. i., p. 121. '- Oy. fit., p. 125. 5a 68 Proceedings of the Royal Society of Victoria. Messrs. Hall and Clarke have further advocated the advisa- bility of separating the known types of Orbiculoidea into two groups ; Orbiculoidea sensu stricto would then include the forms which have the pedicle valve convex or flattened, and the brachial valve conical ; the sub-genus Schizotreta of Kutorga embracing those forms in which the pedicle valve is conical, and the brachial depressed convex. The above species is named in honour of the late Dr. A. R. C. Selwyn, under whose auspices this and many other specimens in the Museum were collected, and whose early mapping of Vic- toria remains as a splendid testimony of conscientious pioneering work. Occurrence. — The specimens of Orbiculoidea selwyni in the National Museum are from the Geological Survey collections from Merri Creek, Pai-ish of Merriang Bb 6 [613-4]; and from Merri Creek, Kalkallo, Bb 3 [612]. In the former instance they are found in an ochreous coloured sandy and micaceous rock, and in the latter in a tine blue-grey sandstone. Horizon.— i^WuvvAW (? Yeringian). Genus Craniella, Oehlert. Craniella lata, sp. nov. (PI. X., Figs. 4, U). Specific characters. — Shell sub-quadrangular, moderately large, broader than long. Dorsal surface rising from behind forward to two-thirds the length when it curves steeply to the anterior border. Sides somewhat steeply sloped. The surface of the dorsal valve rather depressed in the central area ; marked by one or two striae parallel with the posterior border. The upper valve in the type specimen is practically represented as a cast of the internal surface. The impressions of the posterior adductors are shown as small trigonal depressions ; the two sub-centrals are apparently confluent, though not well seen in the specimen, being represented by a crescentic excavation. Faint indications of the vascular sinuses on the steep lateral margins of the specimen, nearly concentric with the lateral shell-margin and emitting secondary branches from both sides. New or Little-known Victorian Fossils. 69 Measurements. Length of shell -.--.. 6.5 mm. Width 10 „ Greatest height from surface of attachment - 1.5 ,, Affinities. — Although the general characters of our specimen come well within the genus, there are no closely related forms among the few species of Craniella yet described. Probably the nearest allied form is the variable species from the Hamilton group of New York State, namely C. hamiltoniae, J. HalP. Our specimen, however, is much broader, with a longer posterior border, and having concentric leather than strongly sigmoidal sinuses. Observations. — This genus has hitherto been recorded only from Ordovician (doubtfully) and Devonian strata in North America and Europe, and thus its occurrence for the first time in Aus- tralia is further interesting from the fact that it apparently fills in the gap in its geological range, if the Ordovician occurrence can be proved. Occurrence. — Our example of the above species was found attached to the external surface of a species of Cycloceras, from the tine blue-grey argillaceous rock near the Botanical Gardens, South Yarra, Melbourne. It was found during the work on the Yarra Improvements. Collected by Mr. F. Spry [896]. Horizon. — Silurian (Melbournian). Genus Stropheodonta, J. Hall. Sub-genus Lepiosirophia, Hall and Clarke. Stropheodonta (Leptostrophia) alata, sp. nov. (PI. XI., Figs. 6, 7). Specific characters. — Shell semi-circular, broadly rounded anteriorly, cardinal margins produced and alate at the extremities ; width greater than the length, valves depressed plano-convex. Hinge line nearly straight. Denticulations of the cardinal area extending to more than one half the entire length of the hinge. Impression of posterior adductors strong, with a finely grooved 1 See Hall and Clarke, op. cit., pi. iv., 1., figs. 3-16. 70 Proceedings of the Royal Society of Victoria. surface of attachment. Surface of valves concentrically undulate, finely lineated radially from the umbo to the anterior margin ; between the radii, the surface upon magnification is seen to be traversed by numerous excessively tine striae. Shell structure, seen in partially decorticated specimens, coarsely punctate. Measurements. A large specimen - - width 44 mm. length 23 „ Another specimen - - width 28 ,, length 16 ,, Affinities. — In outline our species is rather like Stropheodonta ornatella, Davidson sp. (Salter MS.)\ but the latter has longer valves, and the extremities of the cardinal margin are not so acuminate. The two forms also differ in the character of the surface striae, S. ornatella having them much coarser in the form of primary and secondary riblets. Another closely related form, and one typical of the sub-genus is Stropheodonta (Leptostrophia) tilosa, Sowerby sp., of the Wenlockian and Gotlandian in Europe'-; especially with regard to its fine ornamentation of radii. The latter species however has the cardinal extremities much less produced, is proportion- ately longer, and the primary radii are far more numerous. Occurrence. — North of Lilydale. Specimens presented by the Rev. A. W. Cresswell, M.A. [665-6] ; [659] ; [1421]. Also Geol. Surv. Vict. B 23, Junction of Woori Yallock and Yarra [657-8]. In both cases the specimens occur in a kind of ochreous mudstone, the rock in the latter instance being much more indurated. Horizon. — Silurian (Yeringian). Sub-genus Brachyprion, Shaler. Stropheodonta (Brachyppion) lilydalensis, sp. nov. (PI. XL, Fig. 5). Specific characters. — Shell semi-circular, broadly rounded anter- iorly, with the cardinal extremities somewhat produced and 1 Strophomena ornatella (Salter MS.) Davidson, 1871, Brit. Sil. Brachiopoda (Pal. See. Men.). No. 4, p. 300, pi. xliii., fi'js. 10-20. 2 Orthis filosa, Sowerby, 1839, in Murchison's Siluriati System, pi. xiii., fig-. 12; Stropho- mena filosa, Sow., sp .Davidson, 1871, Brit. Sil. Bracli., No. 4. p. 307, pi. xliv. fl>;;i. 14-20. Stropheodonta (Leptostrophia) filosa, Sow. sp.. Hall and Clarke, 1S92, Paleontology of New- York, Brachiopoda, pt. i. p. 288. New or Little-known Victorian Fossils. 71 pointed. Brachial valve nearly flat, slightly concave at the anterior margin. Cardinal process rather prominent. Adductor impressions small and faint. Hinge line with indications of denticulae near the umbo. Surface of shell with prominent and. numerous radii, fasciculate near the umbo, stronger and bifur- cating near the anterior margin; .5 mm. apart in the median area of shell. Between the radii of the umbonal half of the shell there are closely set concentric wrinkles or undulations. Shell structure coarsely punctate. Ventral valve not seen. Measurements. Length - - - - 20 mm. Width - - - - 28 „ Affinities. — This species agrees in the details of the surface ornament with Stropheodonta (Brachyprion) varistriata, Conrad^ from the Lower Helderberg Group, New York ; but with regard to the relative shape of the shell all the specimens of the latter species which have been figured appear to be much longer than our specimen in proportion to the width. The posterior ad- ductor impressions in our specimen also differ from those of S. varistriata, being much shorter and broader. The limited extent of the denticulated area of this fo.ssil shows its relation- ship with the earlier or Silurian types of Stropheodontae for which Professor Shaler proposed the generic or sub-generic term Brachy- prion'-. Occurrence. — North of Lilydale. Presented by Rev. A. W. Cresswell, M.A. [660]. Horizon. — Silurian (Yeringian). Genus Strophoneila, J. Hall. Stpophonella euglyphoides, sp. nov. (Plate XL, Figs. 3-6). Specific characters. — Shell semicircular in outline. Ventral valve concave, slightly convex at the umbo. Dorsal valve flat or slightly hollowed at the umbonal region, and sharply bent back anteriorly. Cardinal extremities produced and pointed, 1 See Hall and Clarke, 1892, Palaeoiitolo(fy of New York Palaeozoic Brachiopoda, pt. i., pi. xiii., figs. 6-16. 2 Bull. Mus. Comp. Zool., 1865, vol. i., p. 63. 28 mm 54 M 19 5> 35 J5 45 72 Proceedings of the Royal Society of Victoria. more especially in the brachial valve, the margin of which appears to curl round to enclose the edge of the narrower ventral valve. Marginal area of valves crenelate. Surface of valves marked by strong fasciculate radii, about nine in the space of 10 mm. in the central area, these in turn being further subdivided at 5 mm. from the anterior margin ; also with transverse, concen- tric lines which break, to some extent, the continuity of the radii. Muscular areas of both dorsal and ventral valves well- marked and bordered prominently ; those of the dorsal elevated and divided by a central ridge. Measurements. Dorsal valve of a large specimen, length width - depth about A ventral valve - - - length width- Affitiities. — The nearest allied form to the above is undoubtedly Strophonella euglypha, Hisinger sp.,^ both in shape, structure, and general markings. The chief differences are, the compara- tive flatness of the ventral valve and the striking genicidation of the dorsal valve and also the larger number of radii in S. eugly- phoides. The European species is proportionately longer than the present one, and the concentric undulations on the shell surface more numerous. The muscular areas of the dorsal valve are shoi-ter and deeper in S. euglyphoides. Occurrence. — North of Lilydale ; in a hard ochreous mudstone. Presented by Rev. A. W. Cresswell, M.A. [688-701]. Also Geol. Surv. Victoria, Parish of Yering, sect. 12 [678-81]. Horizon. — Silurian (Yeringian). Genus Plectambonites., Pander. Plectambonites transversal is, Wahlenberg sp. Anomites transversalis, Wahl., 1821, Acta Upsal., vol. viii., p. 64, No. 4. Leptaena transversalis, Wahl. sp., Dalman, 1828, 1 Leptaena euglypha, Hisinger, 1819, Antecken, pi. vi., fig. 4. .Strophomena euglypha, His. sp., Davidson, 1871, Brit. Silurian Brachiopoda, No. iv. (Pal. Soc. Men.), p. 288, pi. xl., figs. 1-5. Strophonella euglypha. His. sp.. Hall and Clarke, 1892, Pal. N.Y., Palaeozoic Brachiopoda, pt. i., pp. 279, 292. New or Little-knoivn Victorian Fossils. 73 Vet. Akad. Haadlingar, p. 109, pi. i. fig. 4. Davidson, 1871, Brit. Sil. Brach., No. 4 (Pal. Soc. Mon.), p. 318, pi. xlviii., figs. 1-9. The convex pedicle valve of our specimen is not so strongly globose as that of typical specimens, but in other respects it is quite comparable with the European and American examples. The valve is relieved by eleven fine but distinct and ridgelike radii, between which the shell surface is crossed by about 8-10 very fine radiating lines. Measurements. About 12 mm. long; 14 mm. wide. Observation. — P. transversalis is a well-defined and common form in the Niagara group of North America, and in the Silurian (Gotlandian) of the British Islands, the continent of Europe (Norway and Bohemia), and the Island of Gotland. Occurretice. — In dark bluish limestone. Deep Creek, seven miles S.W. of Walhalla, Gippsland. Presented by Rev. A. W. Cresswell, M.A. [668]. Horizon. — Silurian (Yeringian). Plectambonites cresswelli, sp. nov. (Pi. XL, Figs. 8-10). Characters of the ventral valve. — Outline nearly semi-circular, hinge line straight, but little transgressed by the umbo ; cardinal extremities angular and not much produced. Sub-globose, nearly as deep as P. transversalis. Surface with about eleven distinct, threadlike radii, the spaces between the riblets occupied by about 9-12 fine parallel striae. The intercostal surface undulate, the depressions curved, concave anteriorly, and at somewhat equi- distant intervals, those on the highest part of the \alve about .3 mm. apart. Measurements. Approximate, as the valve is slightly imperfect. Length . - - - ,5.5 mm. Width - - - - 9 „ Depth of ventral valve - 2.5 „ 74 Proceedings of the Royal Society of Victoria. Observations. — This species resembles in its superficial ornament both Plectambonites corrugata, Poi'tlock sp./ and P. interstrialis, Phillips sp." Our specimen is more globose in the ventral valve than either of the species just mentioned. As regards the orna- ment P. corrugata has both primary and secondary radii, and from four to seven intercostal striae, whilst the Gippsland species has the costae running the entire length of the valve and the intercostal striae are nearly twice as many. It differs from P. interstrialis in much the same details, and also in having a proportionately longer shell. It is noteworthy that P. corrugata is found in the Llandeilo and Bala series (Ordovic- ian) in the British Islands, and also in Bohemia, whilst P. inter- strialis comes from the middle Devonian of Devonshire and the Eifel. Occurrence. — In a dark blue limestone, having a semi-crystalline appearance due to numerous cleavage surfaces of crinoidal joints and ossicles. Deep Creek, seven miles S.W. of Walhalla, Gippsland. Collected ^nd presented to the National Museum, together with other specimens of much interest from the same locality, by the Rev. A. W. Cresswell, M.A., in whose honour the species is named [669-70]. Horizon. — Silurian (Yeringian). Genus Chonetes, Fischer. Chonetes melbournensis, sp. nov. (Plate XI., Figs. 2-4). Specific characters. — Shell transversely elongate, semi-circular in outline ; sub-plano-convex. Brachial valve approximately flat or only slightly concave ; surface with numerous tine threadlike and radial striae ; cardinal process prominent. Pedicle valve with surface traversed by 7 or 8 threadlike radii and numerous finer striations in the interspaces. Sometimes the radii are obsolete, the tine striae alone prevailing. Posterior margin of the pedicle valve bearing about 10 slender spines, often having a 1 Ortkis comugata, Portlock, 1843, Rep. Geol. Londonderry, etc., p. 450, pi. xxxii., figs. 17, 18. Strnphomena corrwjateUa, Davidson, 1871, Brit. Sil. Brach., No. iv. (Pal. Soe. Mon.), p. 301, pi. xli., figs. 8-14. 2 Orthin interstrialis, Phillips, 1841, Palaeozoic, Foss. of Cornwall, Devon, and West Somerset, p. 61, v>l. xxv., fig. 103. Leptaena interstrialis, Phil, sp., Davidson, 1865, Brit. Dev. Brach. (Pal. Soc. Mon.), p. 85, pi. xviii., figs. 15-18. Netv or Little-knoiun Victorian Fossils. 75 length of half that of the shell, and set almost at right angles to the hinge line, with a slight outward curve. Under a fairly high magnification the shell surface between the striae is seen to be irregularly pitted, and the striae themselves are bridged over by oblique curved cross ridges. Measurements. An average specimen- - length 5.7 mm. width 10 „ A larger specimen - - length 7 ,, width 12.5 „ A small specimen - - length 5 ,, width 8.5 „ Affinities. — The only species with which our specimens appear likely to be confused is Chonetes striatella, Dalman sp.^ The latter has, however, a more transversely elongate shell, a distinctly concave brachial valve, and spines set at a wide angle with the ventral umbo. Observations. — McCoy has recorded Chonetes minima, Sow. sp.,^ from Victoria ; and on the maps of the Geol. Surv. of Victoria, Quarter-sheet, No. 3, N.E., in a note on the fossils at Bruce's Creek, near Mount Disappointment, he records Leptaena allied to minima, Sow. ;'^ also on Quarter-sheet, No. 4, S.W., at Broadhurst's Creek, S.E. of Kilmore, locality Bb 18, both Chonetes and Leptaena are recorded, as well as a Leptaena at Dry Creek, Bb 19. It is worthy of note that a specimen of Chonetes has been found in tiie Survey collections at the Museum, labelled as such by McCoy, from locality Bb 18 [874], and this is identical in every respect with Chonetes melbournensis. Whether the Chonetes minima is represented in the Museum collection remains to be discovered, but certain it is that the Broadhiirst Cieek specimen is not referable to the latter form, which differs in many respects from C. melbournensis in point of size, being much smaller and often less than half the width, in the greater 1 Orthis striatella, Dalman, 1827, Kongl. Akad. Handlingar, p. iii., pi. i., figs. 5a-d. Chonetes striatella, Dalm. sp., Davidson, 1871, Brit. Sil. Brach., No. 4 (Pal. Soc. Mon.), p. 331, pi. xlix., figs. 23-26. Zittel-Eastman, 1900, Text-book of Palaeontology, p. 317, fig. 529a. 2 Leptaena minitna. Sow., McCoy, in Smyth's Progress Report, 1874, p. 34. 3 In Murchison's Silurian System, 18.39, pi. xiii., figs. 4, 4a. 76 Proceedings of the Royal Society of Victoria. concavity of the brachial valve, and in the larger number of radii. Occurrence. — -In the brown and blue hardened clays of Mel- bourne ; South Yarra Improvements [634-8] ; South Yarra sewerage tunnel, Domain Road, presented by Mr. F. Spry [630-3]; sewerage tunnel near the Old Fish Market, Flinders Street [1419]; sewerage tunnel, Swanston Street, near the Cathedral [621-7] ; Swanston Street, sewer near Collins Street [615-20, 639-43]. Also at Broadhurst's Creek, S.E. of Kilmore, G.S.V. Bb 18 [874]. Horizon. — Silurian (Melbournian). Chonetes pobusta, sp. nov. (Plate XII., Fig. 8). Specific characters. — Shell semi-circular, wider than long. Cardinal extremities obtusely angular, anterior margin well- rounded. Pedicle valve strongly convex with a shallow median fold ; beak slightly projecting. Brachial valve concave, flattened near its cardinal extremities. Shell surface with about 36-40 ■well-marked, slightly sinuous and sharply ridged radii, which bifurcate close to the anterior margin. A series of hollow spines (probably eight) attached to the cardinal surface of the ventral valve, and arranged nearly perpendicular to the hinge line. Measurements. Length of figured specimen - - 14 mm. Width 20 „ Affinities. — This and the species next to be described belong to de Koninck's group of the Striatae. The general shape and sur- face characters of this species in some respects resembles Chonetes minima, Sow. sp.\ a form generally distributed through the Silurian of England and Wales. C. robusta however is altogether a very much larger form, and possesses a distinct median fold. Chonetes acutiradiata, J. Hall, of the Corniferous Limestone (Upper Heldorberg — Devonian), of New York is similar in respect to the radii, but the cardinal extremities are much produced. The original figure of C. acutiradiata'' shows it to difier from our 1 hoc. supra cit. 2 Struphoinena acutiradiata, J. Hall, 1843, Nat. Hist. New York, pt. iv.. Geology, p. 171, woodcut 67, No. 3. Neiv or Little-known Victorian Fossils. 77 species also in the arcuate border of the lateral margins, and its sharp cardinal extremities. The tigure of the same species given by Hall and Clarke is more extreme, being short, and transversely elongate, with produced and sub-cylindrical extremities^ Occurrence. — In a hardened mudstone crowded with casts and decorticated valves of brachipods and other shells, north of Lilydale. Presented by Rev. A. W. Cresswell, M.A. [U17]. Horizon. — Silurian (Yeringian). Chonetes cresswelli, sp. nov. (Plate XII., Fig. 7). Specific characters. — Shell semicircular, hinge line straight, beaks only very slightly projecting ; cardinal extremities obtusely angular. Pedicle valve with a well-marked median fold. Radii sharp, more numerous than in the preceding species, averaging about 56 ut the margin. Shell-surlace marked with one or two faint concentric lines, which do not interrupt tlie continuity of the radii. Eight or more hollow .spines set nearly perpendicular to the cardinal line on the pedicle valve. Measurements. An average specimen : — Length - - 9 mm. Width - - 15 „ Observations. — The general characters of this and the preced- ing species are somewhat similar, the chief differences lying in the altogether stouter build of shell and fewer radii in Chonetes robusta. The shell in C. cresswelli is usually more elongate transversely, but is variable in this respect. The faint concentric roarkings on the valves of the latter form is another distinguish- ing character. In the number of the radii the above species is nearly compar- able with Chonetes australis, McCoy-', from the Middle Devonian of Buchan and Lucknow, Gippsland, but there is no mesial sulcus in the pedicle valve of that species ; the valve is also longer in proportion and the spines are shorter and stouter. Occurrence. — This species is found, like the preceding, in the indurated mudstones north of Lilydale associated with Orthis, 1 Chonetes aciUiradiata, Hall sp., Hall and Clarke, Palaeontology of New York, Palaeozoic Brachiopuda, vol. iv., pt. 1., pi. xvi., fig. 8. i Prodr. Pal. Vict., Decade iv., 1870, p. 17, pi. xxxv., figs. 3-5 78 Proceedings of the Royal Society of Victoria. Strophonella, Stropheodouta, Leptaena, Pentamerus, Spirifer, Cyrtolites, Bronteus, and many other fossils. Presented by Rev. A. W. Cresswell, M.A. [652-5] ; [1422-3]. Horizon. — Silurian(Yeringian). Genus Uncinulus, Bayle. Uncinulus stricklandi, Sowerby sp. Terebratula stricklandii, Sowerby, 1839, in Murchison's Silurian System, pi. xiii., fig. 19. Rhynchonella stricklandii, Sow. sp., Davidson, 1867, Brit. Sil. Brach., No. II. (Pal. Soc. Mon.), p. 166, pi. xxi., figs. 1-6 and 28. Uncinulus stricklandi. Sow. sp.. Hall and Clarke, 1894, Pal. N. Y., Palaeozoic Brachiopoda, vol. iv., pt. ii., p. 195., pi. Iviii., figs. 38-40. Observations. — The two examples placed on view in the Museum seem to be quite typical of this species ; the median fold is well-defined, the plications are strong and persistent to the umbo, and number about 24 on the pedicle valves. Measurements. Length - - - - - - 23 nun. Width -..--- 30 „ Depth of pedicle valve about - - 11 ,, Occurrence. — In tlie hardened mudstone of Yering, Upper Yarra, Geological Survey of Victoria [851-2]. Horizon. — Silui'ian (Yeringian). Note to Part I. of this Series. (Proc. Eoj'. Soc. Victoria, vol. .\v., pt. ii., 1903., jDp. 118 and 119). The specimens of Upper Ordovician slates with Siphonotreta maccoyi which are in the Melbourne National Museum belong to the Geological Survey localities — Ba 62 and 64 as stated in the paper referred to above ; but they were from the exposures on the banks of the Saltwater River, aljout 3 miles N.E. of Diggers' Rest, and not from Deep Creek (a tributary of the former) as one would understand from Professor McCoy's remarks. When Neiv or Little-known VicUman Fossils. 79 McCoy referred to Deep Creek as the locality for Siphonotreta (Ann. Mag. Nat. Hist., ser. 3, vol. xx., 1867, p. 201) he evidently had in mind the name Deep Creek by which the Saltwater River is sometimes known higher up, near Lancefield, and this possible explanation is further strengthened by McCoy's record of Siphonotreta on the Survey map 7 S.E. at localities Ba 61 to 63, Saltwater River, while Deep Creek has no such record. There is therefore no evident reason for the colouring of the area round Deep Creek as Lower Silurian (Ordovician). Within the last few weeks I have found in the Museum the Survey specimens collected at the locality marked on the Geo- logical maps Ba 60, Deep Creek ; and these consist of pieces of a conglomei-atic, and sandy fossiliferous bed. The fossils are represented by casts, internal and external, of corals, mollusca and a tribolite, and their general aspect is that of the Yeringian, or uppermost Silurian, faces. These fossils will shortly be dis- cussed in a separate paper of this series. Corrigenda to Part I. P. 107, line 14 from bottom, p. 108, lines 12 and 15 from top, and p. 121, line 14 from top for " proximal " read " distal." P. 112, line 12 from bottom, for pi. "i." read "xvi." P. 119, line 2 from top for "Deep Creek" read "Saltwater River." P. 119, line 13 from top delete "Deep Creek." P. 121, line 10 from top for "distal" read "proximal." EXPLANATION OF PLATES X., XI., XII. Plate X. Fig. 1. — Fenestelia margaritifera, sp. nov. Basal aspect of zoarium ; natural cast of internal, poriferous, surface. Natural size. [587]. ,, 2. — F. 7iiargaritijera, sp. nov. Natural cast of a portion of the external, non-poriferous, surface. Natural size. [588]. 80 Proceedings of the Royal Society of Victoria. Fig. 3. — F. margaritifera^ sp. no v. Portion of poriferous surface, showing the arrangment of the zooecia and the tuberculate keel. From a wax impression. X 40. [593]. ,, 4. — Craniella lata, sp. nov. Dorsal aspect of specimen attached to a Cycloceras, x 2. [896]. ,, 5. — Orbiculoidea selwvnt, sp. nov. Pedicle valve. x 4. [614]. ,, 6. — O. sehvyni, sp. nov. Brachial valve ; 6a, ditto, side view. X 4. [612]. „ 7. — Siphotiotreta australis, sp. nov. Pedicle valve. x 2. [605]. ,, 8. — J), australis, sp. nov. Apical end of valve showing fora- men, x 2. [603]. ,, 9. — Lingula spryi, sp. nov. ? Ventral valve; 9a, edge view. X 3. [598]. ,, 10. — L. lalior, sp. nov. ? Dorsal valve; lO^i, edge view. X 3. [597.] ,, 11. — Fenestella australis, sp. nov. Portion of zooecial surface including some of the bifurcating branches. X 7. [1205a]. ,, 12. — Orbiculoidea selwytii, sp. nov. Internal aspect of a pedicle valve, showing the tube partially enclosed by a callus. x 15. [613]. ,, 13. — Siphonotreta australis, sp. nov. Internal cast of a pedicle valve. x 2. [611]. ,, 14. — Craniella lata, sp. nov. Outline sketch showing the position and form of the vascular sinuses, with the posterior and sub-central adductor impressions X 2|. [896]. Plate XI. Fig 1. — Siphonotreta australis, sp. nov. Brachial valve; a large specimen. x 2. [608] „ 2. — Chonetes melbournensis, sp. nov. Interior of a brachial valve showing cardinal process. The matrix above the hinge line of the shell carries the casts of spines left by the removal of the area of the pedicle valve. X 3. [1419]. Neui or Little-knoiun Victorian Fossils. 81 Fig. 3. — C. inelbournensis, sp. nov. Pedicle valve, x 3. [636]. ,, 4. — C. vielbourtiensis., sp. nov. Portion of pedicle valve highly magnified, showing pittings and irregular, oblique, transvei'se ridges. x 56. ,, 5. — Stropheodonta {Brachyprion) ii/ydaiefisis, sp, nov. Natural mould of interior of bi'achial valve with traces of posterior adductor scars in relief, and impression of denticulate hinge. x 2. [660]. ,, 6. — Stropheodonta {Leptostrophia) alata, sp. nov. Natural cast of interior of brachial valve with strong- adductors. X 2. [665]. ,, 7. — Stropheodonta [Leptostrophia) alata, sp. nov. Decortic- ated pedicle valve. Natural size. [666]. ,, 8. — Plecta/nbo)iites cresstvel/i., ^^1. now Pedicle valve. x 4. [669]. ,, 9. — P. cresswelli. sp. nov. Cardinal view of pedicle valve. X 4. [669]. ,, 10. — P. cresswelti, sp. nov. Portion of surface between two riblets, more highly magnified. x 28. Plate XTI. Fig. 1. — Stropheodonta {Leptost?-ophia) alafa, sp. nov. Positive impression in wax of a natural cast of the interior of a brachial valve ; with denticulate hinge line, cardinal process (j), dental sockets, and adductor impressions with grooved surfaces (a), x 2. [665]. ,, 2. — 6". {Brachyprio7i) lilydaletisis, sp. nov. Interior of brachial valve, from a positive impression in wax. X 2. [660]. ,, 3. — Strophonella eiigiyp/ioides, sp. nov. Profile section show- ing strong geniculation of the brachial valve. Natural size. ,, 4. — S. euglyphoides., sp. nov. Natural cast of interior of brachial valve with deep adductor impressions. Natural size. [694b]. ,, 5. — S. eiiglyphoides, sp. nov. Positive cast of preceding specimen, umbonal portion ; with grooved adductor impressions, and tine lineation between the radii. X 1^. [694b]. 82 Proceedini/s of the Royal Society of Victoria. Fig. 6. — S. euglyphoiJes, sp. nov. Pedicle valve. Natural size. [694a]. ,, 7. — Chonetes cresstvel/i, sp. nov. Decorticated pedicle valve. X 2. [652]. ,, 8. — C. robusta^ sp. nov. Ventral aspect. The two valves lying in juxtaposition. x 2. [1417]. ,, 9. — Stropheodonta {Leptostrophia) aiala, sp. nov. Decortic- ated surface of pedicle valve, showing the interstriate surface. x 5. [1421]. [The numbers in square brackets refer to registered specimens in the National Museum.] Pro,-. U.S. yidori.i. V.Hi:;. I'Jalc X. f A f ■ / :'f' .% V' •A. /^ i" VJ \ Silurian Fossils from Victoria. Fror. U.S. Vidona, HXKi. I'h'tc XL .y A ** ^m --#2^ <«*«»f^,^'"- -■.'*f^' ''?^' Silurian Fossils from Victoria. Pror. R.S. Viduna, lO()3. I'latc Xll. Silurian Fossils from Victoria. Au'P. VI. — On Some Australian Tertiary Pleurotomarias. By G. B. PRITCHARD, Lectiu-er on Geology, etc.. Working Men's College, Melboixrne. (With Plates XIII., XIV.). [Read 14th May, 1903.] I. — Pleupotomaria teptiaria, McCoy. (PI. XIV., Figs. 1-4). The first species of the genus Pleurotoniaria described from Australian Tertiary deposits is that dealt with by the hite Sir r. McCoy, under the name of P. tertiaria/ in 1876, and is indicated as, " Rare, in a hard, pink and yellowish limestone, like lithographic stone, on the east bank of the Moorabool River, near .Maude." This species still remains a rare form, and only imperfect specimens are usually obtained. The range of the species may, however, be extended much further down the valley than the locality indicated by McCoy, the section in soft polyzoal and other limestones below the old Clyde Mill, and on the opposite side of the river to the State School, having yielded fair specimens. These deposits along the valley were originally referred to by McCoy as Miocene," and consequently the Geological Survey mapped them as such.^ This was subsequently followed V)y Dr. 11. Woodward in his paper on Recent and Fossil Pleurotomariae,'' and by later writers. This horizon has been referred to as the Upper Maude Beds,'^ and is probably Eocene, the palaeontological evidence clearly requiring a greater antiquity than Miocene.'' 1 Prodronius of the Palaeontology of Victoria, Decade III., pp. 23, 24, i>\. xxv., flgs. 1, la, 16, 1876. 2 Intercol. E.xhib. Essays, 1866-67, No. 7. Recent Zool. and Palaeontology of Vic, pp. 16-19. Also Selwyn, Id., No. 3, Phys. Geog., Geol., and Min. of Vic, pp. 22, 23. Also Prod. Pal. Vic, Dee. III., p. 23. 3 Geological Survey (Quarter-sheet, No. 19, S.W., Wilkinson and Murray, 1805. 4 Geol. Mag., n.s., Dec III., vol. ii., No. 10, Oct., 1885, p. 434. 5 Proc Hoy. Soc Vic, vol. vii., ii.s., pp. 184, 185, 1895. 6 A.A.A.S., Adelaide, 1893, vol. v., pp. 338-343. Proc. Key. Soc \'ic., vol. vii., n.s., pp. 186-188. Trans. Koy. Soc. S.A., vol. xix., pt. i., p. 121, 1895. A.A.A.8., Brisbane, 189.') vol. vi., pp. 348-361. 6a 84 Proceedings of the Royal Society of Victoina. McCoy apparently had this species under a different name in manuscript prior to his description of the species, for in the Exhibition Essays, 1866-67,^ he remarks, "Amongst the singular forms in these Australian tertiary beds recalling oolitic European ones is a Pleurotomaria (P. Australis, McCoy), as large as the mesozoic Pleurotomaria Anglica." The description given by McCoy of tlie type of this species is as follows : — " Shell large, trochiform, apical angle 67°; whorls flat, or very slightly convex ; base moderately convex, with (?) a small umbilicus ; band of moderate width in the middle of each whorl, slightly depressed. Surface with sub-equal prominent thread-like spiral striae, rather less than their thickness apart (about 10 or 11 above, and the same number below the band), about 3 slightly smaller on the Ijand, reticulated by arched striae, narrower, but nearly as prominent as the spiral striae, and slightly further apart. Length about 2 inches 9 lines ; propor- tional width, yVo J l^iigth of last wiiorl, y^V- ' An examination of the type and only specimen of the species possessed V)y the JSTational Museuin, Melbourne, shows it to be only poorly preserved, and considerably chipped in the removal of the matrix ; and unfortunately McCoy saw lit to figure a restoration and not the actual specimen, with the result that the figure is inaccurate in several details, and the enlargement of the sculpture is very misleading. The figures then not being exact, and the description being very brief and too general, new species might very easily have been made out, but for the type being accessible. A well-preserved specimen, but unfortunately .somewhat broken about the apex and aperture, has been very kindly lent to me by the Rev. A. W. Cresswell, M.A., and proves to represent P. terti- aria, McCoy ; the exact locality from which it was obtained has been forgotten, but judging by the calcareous sandy clay matrix, and since it was thought to come from the Geelong District, there is very little doubt but that the specimen was obtained either from the lower portion of the Moorabool Valley or perhaps from Corio Bay. 1 Essay, No. 7, Rec. Zool. and Pal. of Vic, p. 18. Australian Tertiary Pleurotomarias. 85 Through the kindness of Mr. J. A. Kershaw, Curator of the National Museum, Melbourne, and Mr. F. Chapman, Palaeontol- ogist, I have been able to compare this specimen with McCoy's type, and they agree with me that there is no doubt about their specific identity. The preservation of the shelly material of Mr. Cresswell's specimen is far better than that usually met with in the limestones, casts and impressions being the most frequently obtained under those conditions, consequently the sculpture can be very distinctly and critically examined, and as there are several points of difference from McCoy's figures and description, it might be well to refer to them. The apical angle is practically the same, being only a degree or two less, the whorls are slightly convex above the band, depressed at the band, flat or slightly concave below the band, earlier whorls rather flatter than later ; the base is convex becoming depressed towards the periphery, it is faintly spirally and radially striate, the latter marking being somewhat sigmoid, the base is ;w/ umbilicate, but the columella is strong and twisted ; aperture quadrate ; the band is about 1.5 mm. wide on a whorl of 14 mm. width ; strong spiral threads irregular in width occur on the earlier whorls, but gradually fade out till they become mere striations, there is usually one less above the band than below it and they increase in number as the whorls increase ; the arched striae crossing the spiral threads are strongest near the posterior suture and their general trend is at a much more acute angle to the band than the much fainter striae below the band ; the earlier whorls from this sculpture show quite a tessellation, but this disappears before the body whorl is reached. McCoy's enlargement of the sculpture shows 12 threads above the band and 12 below, but the type does not show this, there being actually fewer, and also a difference of one above and below the band, nor is the tesselation as regular as figured, while the arched striae in figure 1 are entirely erroneous. II. — Pleupotomapia bassi, sp. nov. (PI. XIII., Figs. 1, 2). Recently I obtained a very large specimen of this genus from the Eocene beds of Table Cape, Tasmania, and though not very perfect, through weathering of portion of one side, there appears sufficient character to distinguish it as a new species. 86 Proceedings of the Royal Society of Victoria. Description. — Shell very large, trochiform, apical angle about 75 degrees, rather lacking in solidity considering its size. Whorls slightly convex, with a well impi'essed suture, earlier whorls rather flat, impressed suture less marked ; whorls rapidly increasing in size, and numbering about nine. The median band is broad, being in width about one-sixth the height of the whorl, it is very strongly marked, and is situated a little below the middle of each whorl. Body-whorl strongly keeled at the base ; base very slightly convex to a well-marked umbilicus, which penetrates only to the penultimate whorl ; aperture subquadrate, posterior portion of the lip thin, lower edge of the lip slightly thickened and rounded off, becoming thicker and more solid towards the columella, the latter being strikingly more solid and robust than the rest of the shell. There is evidence of faint spiral striae, irregular in strength, on the upper or posterior portion of the penultimate and body- whorls, and a faint spiral striation is discernible on the base, becoming a little clearer and closer towards the umbilicus ; the general character of the surface-marking being a rude and irregular striation in conformity with the lines of growth, the base also showing a strong irregular undulation parallel to the growth. Dimensions. — Basal diameter, 5| inches, or 136 mm.; height from the base, 4^ inches, or 103 mm.; breadth of aperture, 3 inches or 75 mm.; depth of aperture, about H inches, or 36 mm.; width of fasciole, near slit, 6 mm. to 5 mm. further back on the body-whorl ; length of slit, 48 mm. Locality. — Basal horizon of the Table Cape Beds, Tasmania, in coarse ferruginous grits. Jan Jukian (Eocene). Observations. — The large size of this species is worth special note as it compares very favourably with the largest of the specimens yet obtained of P. adansoniana, Crosse and Fischer, the best known of the recent species. The thinness of the shell is rather remarkable, especially in view of the coarse gritty material in which it is preserved, and in this respect it is scarcely as thick as the much smaller species of McCoy, in addition to this feature it differs from P. tertiaria, in its greater apical angle, the more impressed sutures, in its umbilicus, and in its inornate character. The shortness of the slit, and the Australian Tertiary Fleurotomarias. 87 remarkable breadth of the fascicle, and lack of sculpture, are features worthy of special attention in this new species. III. — Pleupotomaria, n.sp. A new species of Pleurotomaria was recorded liy the late Pro- fessor R. Tate in his list of the Eocene fossils from Cape Ot\vay,i a,nd this is subsequently included in M. Vincent's list of Eocene species of this genus,'- but I am unaware of any published remarks, description, or figure of this form, and not having seen the specimen, I am unable to give any further information con- cerning it. Very imperfect specimens of a high spired form of this genus have been obtained from the Eocene limestones of Waurn Ponds, near Geelong, by Mr. T. S. Hall and myself, but the material yet to hand is too meagre to permit of specific determination. Our Tertiary representation of this genus appears to be excep- tionally good when compared with that of other countries, but befoi'e noting the other Tertiary records, there are some points of relationship and classification upon vvhich I would like to comment. Fischer has divided the recent species into two sections, Perotrochus, typified by P. quoyana, Fischer and Bernardi, and Entemnotrochus, typified by P. adansoniana, Crosse and Fischer. Perotrochus has been defined as:— Form conical, base not umbilicate, whorls striate or granulate, anal fascicle sub-median or below the middle, slit short. While Entemnotrochus is characterised as follows : — Shell ccnoidal, striate, umbilicate; anal fascicle a little above the middle of the upper surface of the last whorl, slit long, but not exceeding the half of a whorl. McCoy remarks of P. tertiaria* that it " is almost intermediate in character between the two living ones," the two referred to being P. quoyana, and P. adansoniana. 1 Trans. Roy. Soc South Australia, vol. xix., pt. i., p. 112, 1895. 2 Soc. Roj-. Malac. de Belg., vol. xxxi., 189C, but not (listributt;d till 24tli December, 1899, p. 56. 3 Prod. Pal. Vic, Dec. iii., p. 23. 88 Proceedings of the Royal Society of Victoria. P. bassi shows some affinity with P. bnyrichi, Hilgendorf, in that the fascicle is broad, and is situated a little below the middle of the body-whorl, and tlie slit is short, in these and other respects it appears to agree with Fischer's section Perotrochus, but it is distinctly umbilicate. Thus if relationship with the recent forms be pushed, P. bassi would also appear to be an intermediate form, and this taken with the P. tertiaria charac- ters, would tend to invalidate Fischer's divisions of the recent forms. On the other hand much closer relationship can be made out with Jurassic and Cretaceous forms for botli our fossil species, and this is in direct accord with the position of most other Eocene species in other parts of the world, and may perhaps be taken as a small additional piece of evidence in favour of the Eocene age of the deposits containing them. P. tertiaria McCoy may proljably belong to Leptomaria, but P. bassi certainly does not, and shows rather more affinity with Jurassic forms. Special interest attaches to this genus as a " persistent type," and on account of its rarity living at the piesent time, and fossil in Tertiary deposits, as compared with its numerous fossil repre- sentatives from older geological deposits ranging up from Silurian. There are five recent species of which there are only about twenty-three or twenty-four specimens known. 1856. Pleurotomaria quoyana, Fischer and Bernardi. 1861. Pleurotomaria adansoniana, Crosse and Fischer. 1877. Pleurotomaria beyrichi, Hilgendorf. 1879. Pleurotomaria rumphii, Schepman. 1899. Pleurotomaria salmiana, Rolle. Including the present new species, P. bassi, the number of Tertiary species recorded is twenty, but one at least of these is unknown by any figure or description and ought hardly to be taken into consideration. The remaining nineteen are all very rare, and the majority are recorded from Eocene beds. Altei-ing the age ascribed to P. tertiaria, McCoy, from Miocene to Eocene, the species are distributed as follows :■ — Eocene - - 14 species. Miocene - - 2 species. Pleistocene - 3 species. Australian Tertiary Pleiirotomarias. 89 List of the Tertiary Species of Pleurotomaria. Eocene. 1853. Pleurotomaria hianconii, d'Archiac, India. 1864. Pleurotomaria concava, Deshayes, Paris Basin. Pleurotomaria duboisii, Mayer, Crimea = Trochus gi- ganteus, Dubois, non Sowerby. Pleurotomaria genyi, Mayer, Nice. 1866. Pleurotomaria kadin-kewiensis, d'Archiac, Asia Minor. Pleurotomaria lamarckii, Mayer, Switzerland. Pleurotomaria nicaeensis, Bayan, Nice. 1854. Pleurotomaria nixus, Tuomey (Trochus), North Carolina. 1865. Pleui'otomaria perlata, Conrad, New Jersey. 1896. Pleurotomaria (Leptomaria) whitfieldi, Vincent, New Jersey = gigantea, Whittield, non Sowerby. 1892. Pleurotomaria (Leptomaria) pergranulosa, Whitfield, New Jersey. 1896. Pleurotomaiia (Leptomaria) landinensis, Vincent, Belgium. 1876. Pleurotomaria tertiaria, McCoy, Moorabool Valley, Victoria. 1903. Pleurotomaria bassi, Pritchard, Table Cape, Tasmania. Miocene. Pleurotomaria sismondai, Goldfuss, Bunde. 1892. Pleurotomaria atlantica. Cotter, Santa Maria, Azores. Pleistocene. Pleurotomaria fischeri, Mayer MS., Guadaloupe. 1869. Pleurotomaria ducha.ssaingii, Schramm, Guadaloupe. 1821. Pleurotomaria gigas, Borson, Italy. Regarding P. tischeri, Mayer, M. Crosse in 1882 refers to it as a MS. name.^ And later again in Bouvier and Fischer's fuller account of the Pleurotomarias in 1899,'-^ it is still referred to as an MS. name. Subsequent to 1899 I have found no reference to a description of this species. 1 Jour. d. Couch., Jlon. Pleurotomaria, 1882. 2 Jour. d. Conch., vol. xlvii., pp. 77-151, 1899. 90 Proceedings of the Royal Society of Victoria. Dall says of P. perlata, Conrad, that it is an ilLdetitied species, and apparently scarcely recognisable.^ Bouvier and Fischer in the monograph referred to also refer P. gigas, Borson, and P. atlantica, Cotter, both to the recent section Entemnotrochus, and are inclined to the opinion that tliese two species are identical. Concerning P. sismondai, Goldfuss, Crosse and Fischer state- that the exact locality of the shell appears doubtful, it is given as the Upper Mai-ine Sands of the neighbourhood of Bunde. In the description of P. bianconii, d'Archiac, the author queries his generic location of this species in the text, but not on his plate. P. duboisii, Mayer, was first described as Trochus giganteus. Dubois, and as that specific name was preoccupied, it was named after Dubois by Mayer. P. whittieldi, Vincent, has also been treated in a similar way by Vincent, for- this species was first described as P. gigantea, Whitfield ; this name, as in the previous case, being preoccupied by Sowerby for a Lower Greensand fossil, a change was necessary. Our total information then on these Tertiary species appears to be of a somewhat meagre order, and if it is accepted that one of the American species is not recognisable, that P atlantica and P. gigas are identical, and that P. fischeri is only a MS. name, our total number dwindles to sixteen, and the amount of readily- available informacion on several of these is so slight, that further details concerning them and their occurrence would be very acceptable. Of forms older than Tertiary, about twelve hundred species are known, and these are about equally divided between the Palaeozoic and Mesozoic, but the Jurassic undoubtedly holds the maximum with about four hundred species. I wish to express my thanks to Professor W. Baldwin Spencer, Director of the National Museum, for allowing me to refigure the type of P. tertiaria, and to Mr. F. Chapman for kindly photographing it. 1 Ti-ans. Wag. Inst., Philad., vol. iii., pt. 2, p. 423, 1892. 2 Jour. d. Conch., vol. ix., p. 162, 1861. Proc. R.S. Victoria. 1903. Plate XIII. D. W. Pjiterson, Photo. Australian Tertiary Pleurotomarias. Proc. R.S. Victoria. 1903. PUte XIV. D. W. Paterson, Photo. AUSTRALIAN TERTIARY PLEUROTOM ARIAS. Australian Tertiary Fleurotomarias. 91 EXPLANATION OF PLATES XIII. and XIV. Plate XIIL Fig. 1. — Pleurotoraaria bassi, sp. nov. Side view, showing band and position of slit ; a little over one-half natural size. Eocene, Table Cape. Fig. 2. — Pleurotomax'ia bassi, sp. nov. Basal aspect, showing mouth and umbilical region ; nearly four-fifths natural size. Eocene, Table Cape. Plate XIV. Fig. L — Pleurotomaria tertiaria, McCoy. Front view, slightly reduced. Eocene, ? Corio Bay or Lower Moorabool Valley. Fig. 2. — Pleurotomaria tertiaria, McCoy. Basal aspect, slightly reduced. Eocene, ? Corio Bay or Lower Moorabool Valley. Fig. 3.- — Pleurotomaria tertiaria, McCoy. Apical aspect, slightly reduced. Eocene, 1 Corio Bay or Lower Moorabool Valley. Fig. 4. — Pleurotomaria tertiaria, McCoy. McCoy's Type speci- men from Moorabool Valley, Upper Maude beds. Specimen in the National Museum, Melbourne. Art. VJI. — On Some New Species of Victorian Mollusca, No. 6. By G. B. PRITCHARD and J. H. GATLIFF. (With Plate XV.). [Read 11th June, 1903.] The present paper includes descriptions and figures of the following species : — Zenatia victoriae, sp. nov. Modiola victoriae, sp. nov. Also observations on our commonest species of Chione, together with figures of the same, namely : — Chione strigosa, Lamarck. Chione scalarina, Lamarck. Chione peronii, Lamarck. We have to thank Messrs. D. W. Paterson, senior and junior, for the care bestowed on the photographs of these shells, and on their reproduction. Zenatia victoriae, sp. nov. (PI. XV., Fig. 3). Description. — Shell elongate-oval, thin and compressed, with a full and well-rounded anterior end, and slightly attenuate both ventrally and dorsally towards the posterior end. Shell greyish- white and shining, where not covered by a light greyish-brown fine longitudinally striate epidermis, which is very thin and glossy. Umbos small and well-defined and situated at a distance of one-third of the length of the shell from the anterior margin. Ventral margin nearly straight, only slightly sinuated. The surface of the valves is very finely concentrically striated, the regularity of the striae being interfered with by the lines of growth, the concentric sculpture is also delicately radially striate, and this is distinctly visible under a lens. Interior white, cardinal teeth, two and one rudimentary posterior lateral in each valve ; the lineal groove of the cartilage plate makes an angle of 20 to 30 deg. with the posterior hinge line ; the internal thickening beTow the umbo or transverse ossicle New Species of Victorian Mollusca. 93 forms at first a strong convex ridge, wliich gradually flattens and spreads out to a distance from the umbo of two-thirds of the height of the shell, and inclines slightly forward towards the anterior. Diine>iswHS. — Antero-posterior diameter, 73 mm.; umbo-ven- tral diameter, 31 mm.; anterior margin, from umbo- ventral diameter, 24 mm.; thickness through both valves, about 10 mm. Locality. — Port Albert (Mr. T. Worcester). Observations. — This species might at first sight be taken for Zenatia acinaces, Quoy and Gaimard, but it is a good species, and shows many points of difference. The most striking differ- ence is the position of the umbo, which in our new species is at one-third of the length of the shell from the anterior margiu, while in Z. acinaces its position is about one-tlfth the length of the shell; this gives a much larger and more regularly rounded anterior to our shell, and consequently a change in the relative position of the anterior muscular impressions, the cartilage plate, and the transverse ossicle. Z. acinaces also has a straighter dorsal margin, and a more marked ventral siniis, and greater proportional height. Type in Mr. Gatliff's collection. Modiola victoriae, sp. nov. (PI. XV., Fig.s. 1, 2). Description. — Shell elongate-oblong, tumid, with broad umbonal region, a broad and well-marked anterior, and a posterior rather remarkable for its uniformity of height ; ventral margin but slightly sinuated, but the shell in this region above the margin is distinctly constricted. Umbos tumid, only slightly separated, and strongly incurved towards the antei-ior ; lunule ill-defined, scarcely excavated ; anterior margin regularly convex from the umbos to the ventral margin, post-dorsal margin short and convexly rounded to the posterior margin. The absence of any angulation in the outline is a distinct characteristic. The colour is a rich dark brown, with the umbo-ventral convex keel of a lighter shade. The surface is marked by irregular lines of growth and fine parallel striae, with faint radial striae ort the anterior region, tending to betome obsolete posteriorly. 94 Proceedings of tJce Royal Society of Victoria. Dimensions. — Autero-posterior diameter, 40 mm.; umbo-ventral diameter, 18 mm.; greatest height at the middle diametei', 19 mm.; thickness through both valves, 18 mm. Locality. — Dredged alive from about 6 fathoms off Rhyll, Phillip Island, Western Port. Observatiojis. — Tliis form may be readily distinguished from our other species of this genus by its regular tumidity, and its remarkable uniform height. Type in Mr. Gatlift''s collection. Observations on our commonest species of Chione. Representatives of the genus Chione are particularly common on many parts of the shores of Port Phillip, but there are three well-marked forms which require special treatment owing to the confusion existing as to their correct naming. These species are the following : — Chione strigosa, Lamarck. Chione scalarina, Lamarck. Chione peronii, Lamarck. The most abundant forui . is commonly referred to as C. strigosa, Lamarck, and this may be identihed by its enlongate- ovate form, anastomosing concentric ridges, which are distinctly crossed by continuous radiating striae. The next most frequently met with is usually known as C. scalarina, Lamarck, and this diii'ers from 0. strigosa by its more attenuate posterior, by its regular concentric ridges develop- ing into lamellae anteriorly and posteriorly, and the absence of the radiating striae. The third form to which we consider Lamarck's name C. peronii properly belongs, may be identitied by its more inflated form and flattened concentric ridges. All these forms vary in colour botli externally and internally, each form being sometimes colourless externally, in fact so great is the variation on difierent points, that but for tlie above apparently constant characters tliey might nearly be regarded as extreme variations of one species. We give in the succeeding part of our Catalogue of the Marine yiiells of Victoria, Part VII. , a limited number of references to these species, which we consider in each case refers to the same Proc. R.S. Victoria. 1903. PUte XV. D. W. Peterson, Photo. Neiv Sijecies of Victorian Molliisca. 95 form, with references to figures which sliould ensure an identifica- tion, and we would recommend the adoption of the three names given. We have, however, thought it advisahk; to re-figure these species from specimens wliich we consider will sliow the points we have laid stress upon to assist in future identification. In arriving at this conclusion we have considered the following Lamarckian species: — Venus strigosa. Venus connlaris. Venus scalarina. Venus aphrodina. Venus peronii. Venvis aphrodinoides. Venus tristis. Venus elegantina. And the whole confusion surrounding these is due to different grouping of the above by subsequent authors. Tenison-Woods in liis census of Tasmanian shells includes Venus (Chione) humphreyi, Donovan, but the species has not been dealt with by Messrs. Tate and May in their recent census, examples forwarded to us as this species lead us to the conclusion that it falls in with the above series. Plate XV. Fig. 1. — -Modiola victoriae, sp. nov. Dorsal aspect, natural size. Fig. 2. — Modiola victoriae, sp. nov. Side view, natural size. Fig. 3.- — Zenatia victoriae, sp. nov. Right and left valve, slightly reduced. Fig. 4. — ^Chione strigosa, Lamarck. Paired valves. Fig. 5. — Chione strigosa, Lamarck. Paired valves of a smaller specimen. Fig. 6. — Chione sti-igosa, Lamarck. Paired valves showing- strong colour markings. Fig. 7. — Chione scalarina, Lamarck. Paired valves of a fair sized specimen. Fig. 8. — Chione scalarina, Lamarck. Paired vahes showing colour markings. Fig. 9.— Chione peronii, Lamai-ck. Paired valves of rotund form. Fig. 10. — Chione peronii, Lamarck. Paired valves showing colour markings. Art. YllJ. — Catalogue of the Marine Shells of Victoria. Part VII. By G. B. PRITCHARD and J. H. GATLIFR [Eead 11th June, 1903J. The present paper refers to ninety-seven species of bivalves, con- tained in the following families : — Gastrochaenidae, Clavagellidae, Teredidae, Pholadidae, Solenidae, Saxicavidae, Corbulidae, Anati- nidae, Mactridae, Mesodesmatidae, Semelidae, Tellinidae, Dona- cidae, Petricolidae, Veneridae, Cardiidae, Ohamidae, and Luciiiidae. The previous papers, Parts I. to VI., dealt with the Cephalo- poda and Gastropoda, and i-eferred to 531 species, so that with the addition of the i^resent part, which forms the first portion of the Laraellibranchiata, the total now stands at 628 species. Family Gastrochaenidae. Genus Gastrochaena, Spengler, 1783. GaSTROCHAENA TASMANICA, T. Woods. 1877. Gastrochaena tasmanica, T. Woods. P.R.S. Tas., p. 159. 1878. Gastrochaena tasmanica, Angas. P.Z.S. liOnd., p. 869, No. 56. 1887. Gastrochaena tasmanica, Tate. T.R.S. S.A., vol. ix., p. 81, pi. 5, f. lOrz, /;. Hab. — Schnapper Point, Port Phillip (Nat. Mus.). Family Clavagellidae. Genus C lavage 1 1 a, Lamarck, 1807. Clavagella australis, Sowerby. Clavagella australis, Sowerby. In Stutchbury's Catalogue, pi. 1, f. 1. Catalogue of Marine Shells of Victoria. 97 1872. Clavagella australis, Reeve. Conch. Icon., vol. xviii., pi. 2, f. ia, d, c, d. 1884. Clavagella (Dacosta) australis, Tryon. Struct, and Syst. Conch., vol. iii., p. 119. 1895, Clavagella australis, Clessin. Conch. Cab., vol. xi.. Gastrochaena, p. 22, No. 8, pi. 9, f. 7-10. Hab.— Victoria (Prof. R. Tate). Genus Humphreyia, Gray, 1858. HUMPHREYIA STRANGEI, A. AcUuns. 1852. Aspergillum strangei, A. Adams. P.Z.S. Lond., p. 91, pi. 15, f. 5. 1858. Humphreyia strangei, Gray. P.Z.S. Lond., p. 317. 1878. Humphreyia strangei, Angas. P.Z.S. Lond., p. 869, No. 55. 1878. Humphreyia strangei, T. Woods. P.R.S. Tas., p. 47. 1884. Humphreya strangei, Tryon. Struct, and Syst. Conch., vol. iii., p. 118, pi. 104, f. 44. 1895. Aspergillum strangei, Clessin. Conch. Cab., vol. xi., Gasti'ochaena, p. 34, No. 19, pi. 10, f. 4. Hab. — Flinders to Balnarring, dredged alive, 5 to 8 fathoms, shell-sand bottom, off Rhyll, Phillip Island, and San Remo, Western Port. Rare in Port Phillip. Family Teredidae. Genus Nausitora, Wright, 1864. Nausitora saulii, E. p. Wright. 1865. Nausitora saulii, E. P. Wx-ight. Trans. Lin. Soc. Lond., vol. XXV., pi. 65, f. 9-15. 1875. Teredo saulii, Reeve. Conch. Icon., vol. xx., pi. 3, f. 10a, ^, , c. 1842. Mesodesma erycina, Hanley. Cat. Rec. Biv. Shells, p. 38. 1854. Mesodesma erycinaea. Reeve. Conch. Icon., vol. viii., pi. 2, f. 12. 1856. Mesodesma erycinaeum, Hanley. Cat. Rec. Biv. Shells, p. 341, pi. 12, f. 26, and in explanation of plate M. erycinea. Hab. — Port Albert. Alive in sand bank, Mentone, Port Phillip (J. Atkinson). Mesodesma elongata, Deshayes. 1854. Mesodesma elongata, Deshayes. P.Z.S. Lond., p. 337, No. 94. 1854. Mesodesma elongata. Reeve. Conch. Icon., vol. viii., pi. 1, f. 5. 1897. Mesodesma elongata, Tate. T.R.S. S.A., vol. xxi., pt. 1, p. 46. Hab. — San Remo, Airey's Inlet, Apollo Bay. Catalogue of Marine Shells of Victoria. 1 1 1 Obs. — This may be distinguished from the succeeding species, M. nitida, by its more abrupt posterior truncation and more marked anterior attenuation. The type of this species is in the British Museum. Mesodesma nitida, Deshayes. 1854. Mesodesma nitida, Deshayes. P.Z.S. Lond., p. 338, No. 96. 1854. Mesodesma nitida. Reeve. Oonch. Icon., vol. viii., pi. 1, f. 6. Hab. — Very common in Port Phillip. Mesodesma glabrella, Lamarck. 1819. Amphidesma glabrella, Lamarck. Anim. S. Vert. (ed. Desh.), vol. vi., p. 133. 1839. Amphidesma glabrella, Lamarck. Id. (3rd ed., Deshayes and Edwards), vol. ii., p. 545, No. 13. 1842. Mesodesma glabella, Hanley. Cat. Rec. Biv. Shells, p. 39. 1854. Mesodesma praecisa, Deshayes. P.Z.S. Lond., p. 338, No. 97. 1854. Mesodesma praecisa. Reeve. Conch. Icon., vol. viii., pi. 4, f. 31. 1854. Mesodesma mitis, Reeve. Id., f. 29. 1856. Mesodesma glabellura, Hanley. Cat. Rec. Biv. Shells, p. 341, pi. 11, f. 6. 1864. Mesodesma obtusa, Crosse and Fischer. Jour, de Conch., vol. xii., p. 350. 1865. Mesodesma obtusa, Crosse and Fischer. Id., p. 428, pi. 11, f. 4. 1865. Mesodesma praecisum, Angas. P.Z.S. Lond., j). 647. 1897. Mesodesma glabrella, Tate. T.R.S. S.A., vol. xxi., pt. 1, p. 46. 1901. Me.sodesma glabrella, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 424. Hab. — San Remo, Balnarring, Western Port. 112 Proceedings of the Royal Society of Victoria. Genus Anapella, Dall, 1895. Anapella cuneata, Lamarck. 1819. Crassatella cuneata, Lamarck. Anim. S. Vert., ed. Desh., vol. vi., p. 133. 1839. Crassatella cuneata, Lamarck. Id. (3rd ed., Des- hayes and Edwards), vol. ii., p. 539, No. 8. 1842. Mesodesma cuneata, Hanley. Cat. Rec. Biv. Shells, p. 38. 1843. Mesodesma triquetra, Hanley. P.Z.S. Lond., p. 101. 1854. Mesodesma cuneata, Reeve. Conch. Icon., vol. viii., pi. 2, f. 9. 1854. Mesodesma triquetra, Reeve. Id., pi. 4, f. 28. Mesodesma sraithii, Gray. 1856. Mesodesma triquetrum, Hanley. Cat. Rec. Biv. Shells, p. 341, pi. 12, f. 20. 1875. Mesodesma (Anapa) smithii. Woodward. Man. Moll., p. 485, pi. 21, f. 17. 1876. Anapa tasmanica, T. Woods. P.R.S. Tas., p. 160. 1878. Anapa tasmanica, T. Woods. Id., p. 49. 1887. Mesodesma (Anapa) smithi, Fischer. Man. d. Couch., p. 1113, pi. 21, f. 17. 1897. Anapella cuneata, Tate. T.R.S. S.A. vol. x.xi., pt. 1, p. 46. 1901. Anapella cuneata, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 424. Hab. — Coast generally, particularly estuarine localities. Port Fairy to Port Albert. Obs. — Hanley and other authors give Mesodesma subtriangu- lata, Gray, as a synonym of this species, but the figure given of Mactra subtriangulata, by Wood, Index Testaceologicus, Supple- ment, pi. 1, f. 10, and referred to by Hanley as Gray's species, is not our shell. Tate again quotes Crassatella cycladea, Lamarck, as another synonym Vjased on his examination of the Lamarck ian type, and he also suggests that Mulinia pinguis, Crosse and Fischer, is only the triquetra form of the above species. Catalogue of Marine SJiells of Victoria. 113 Family Semelidae. Genus Semele, Sclmmacher, 1817. Semele exigua, a. Adams. 1861. Semele exigua, A. Adams. P.Z.S. Lond., p. 385. 1865. Semele exigua, Angas. Id., p. 647, No. 28. 1887. Semele exigua, Tate. T.R.S. S.A., vol. ix., p. 85, pi. 5, f. 5. Hab.— Cowes, Phillip Island (T. S. Hall). Family Tellinidae. Genus Gari, Schumacher, 1817. Gari zoxalis, l.amaick. 1818. Psammotaea zonalis, Lamarck. Anim. S. Vert., vol. v., p. 517, No. 2. 1819. Psammotaea zonalis, Lamarck. Id. (ed. Desh.) vol. vi., p. 182, No. 2. 1839. Psammotaea zonalis, Lamarck. Id. (3rd. ed. Deshayes and Edwards), vol. ii., p. 561, No. 2. 1841. Psammotea zonalis, Delessert. Recueil de Coq., No. 2, pi. 5, f. 9^, /;, c. 1842. Psammotaea zonalis, Hanley. Cat. Rec. Biv. Shells, p. 60. 1854. Psammobia puella, Deshayes. P.Z.S. Loud., p. 320. 1854. Psammobia striata, Deshayes. Id., p. 321. 1854. Psammobia compta, Deshayes. Jd., p. 321. 1856. Psammobia zonalis. Reeve. Conch. Icon., vol. x., pi. 5, f. 29. 1856. Psammobia puella. Reeve. Id., f. 2. 1856. Psammobia compta, Reeve. Id., f. 24. 1856. Psammobia zonalis, Hanley. Cat. Rec. Biv. Shells, p. 346, pi. 11, f. 50, wrongly quoted as f. 52 in his plate reference. 1878. Gari zonalis, T. Woods. P.R.S. Tas., p. 49. 1878. Gari striata, T. Woods. Id., p. 49. 1878. Gari compta, T. Woods. Id., p. 49. 1885. Psammobia zonalis, E. A. Smith. Cliall. Zool., vol. xiii., Lam., p. 94. ]14 Proceedings of tlie Royal Society of Victoria. 1901. Gari zonalis, Tate and May. P.L.S. N.S.W., vol. xxvi., pt, 3, p. 425. Hab. — Hobson's Bay, Frankston, Portsea, Western Port. Obs.- — Mr. E. A. Smith, in tlie Challenger Report, also includes in the synononiy of the above, P. tellinaefonnis, Deshayes, and P. radiata, Dunker. Genus Soletellina, Blainville, 1824. SOLETELLINA BIRADIATA, Wood. 1815. Solen biradiata. Wood. General Conch., p. 135, pi. 33, f. 1. 1825. Solen biradiata, Wood. Index Test, p. 15, No. 26, pi. 3, f. 26. 1828. Solen lividus. Wood. Id., Supplement, p. 3, pi. 1, f. 3. 1828. Sanguinolaria livida. Wood. Id., Supplement, p. 52. 1857. Soletellina nymphalis. Reeve. Conch. Icon., vol. X., pi. 1, f. 2. 1857. Soletellina epidermia. Reeve. Id., f. 3. 1857. Soletellina biradiata, Reeve. Id., pi. 2, f. 7. 1865. Hiatula biradiata, Angas. P.Z.S. Lond., p. 646, No. 19. 1878. Hiatula epidermia, T. Woods. P.R.S. Tas., p. 50. 1890. Hiatula biradiata, Whitelegge. Jour. Roy. See. N.S.W., vol. xxiii., p. 237, No. 60 (p. 75 in list). 1901. Solenotellina biradiata, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 425. Hab. — Common in Port Phillip ; Western Port ; Portland (Maplestone). Obs. — The copy of Wood's General Conchology in the Public Library, Melbourne, is distinctly dated 1835 on the title page, but at the end of the advertisement on the succeeding pages it is dated April, 1814. This is evidently a reprint, for volume I., which was all published, appeared in 1815, according to the British Museum Cataloiru*". Catalogue of Marine Shells of Victoria. 1 1 5 SOLETELLINA DONACOIDES, Reeve. 1857. Soletellina doiiacoides, Reeve. Conch. Icon., vol. X., pi. 3, f. 11. Hab. — Port Melbourne, St. Kilda, Sandringhaui, Frankston, Port Phillip ; Portland (Maplestone). Obs. — The type of this species is from South Australia, where the shell is somewhat more inflated than our usual form. Genus Tel Una, Linnaeus, 1758. Tellina deltoidalis, Lamarck. 1818. Tellina deltoidalis, Lamarck. Anim. S. Vert., vol. v., p. 532. 1819. Tellina deltoidalis, Lamarck. Id., ed. Desh., vol. vi., p. 206. 1839. Tellina deltoidalLs, Lamarck. Id. (3rd ed. Des- hayes and Edwards), vol. ii., p. 569, No. 49. 1841. Tellina deltoidalis, Delessert. Recueil de Coq., No. 49, pi. 6, f. 7a, b. 1842. Tellina deltoidalis, Hanley. Cat. Rec. Biv. Shells, p. 70. 1856. Tellina deltoidalis, Hanley. Id., p. 347, pi. 13, f. 3. 1865. Tellinella deltoidalis, Angas. P.Z.S. Lond., p. 646, No. 23. 1666. Tellina deltoidalis, Reeve. Conch. Icon., vol. xvii., pi. 7, f. 29.?, b. 1880. Tellina deltoidalis, Hutton. Man. N.Z. Moll., p. 143. 1901. Tellina (Tellinella) deltoidalis, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 425. Hab. — Common in Port Phillip and Western Port. Obs.— Deshayes gives T. lactaea, Quoy and Gaimard, as a synonym of this species. Tellina australis, Deshayes, as de- scribed and figured by Reeve, Conch. Icon., vol. xvii., pi. 50, f. 297, from East Australia, appears to us to bear a strong resem- blance to the above species. 8a ] 1 6 Proceedings of the Royal Society of Victorm. Tkllixa diemenensis, Deshayes. 1854. Tellina diemenensis, Deshayes. P.Z.S. Lond., p. 361. 1869. Tellina diemenensis, Reeve. Conch. Icon., vol. xvii., pi. 56, f. 333. 1901. Tellina (Tellinella) diemenensis, Tate and May. P.L.S. KS.W., vol. xxvi., pt. 3, p. 425. Hab. — Portarlington, Point Henry, Geelong. Obs. — This form may be only an extreme variation of T. del- toidalis, but may usually be separated from it by its smaller size, trigonal shape, and porcellaneous character. Tellina albinella, Lamarck. 1818. Tellina albinella, Lamarck. Anim. S. Vert., vol. v., p. 524. 1819. Tellina albinella, Lamarck. I^/. (ed. Desh.), vol. vi., p. 194. 1839. Tellina albinella, Lamarck. /^. (3rcl ed. Deshayes and Edwards), vol. ii., p. 565, No. 17. 1842. Tellina albinella, Hanley. Cat. Rec. Biv. Shells, p. 63. 1856. Tellina albinella, Hanley. Id., p. 347, pi. 14, f. 3. 1865. Peronacoderina albinella, Angas. P.Z.S. Lond., p. 646, No. 24. 1866. Tellina albinella. Reeve. Conch. Icon., vol. xvii., pi. 4, f. 15. 1867. 'Tellina albinella. Reeve (var. rosea). Id., pi. 21, f. 15/;. 1901. Tellina (Peronaea) albinella, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 426. Hab. — Port Albert ; Portland (Maplestone) ; Sorrento. Tellina tenuilirata, Sowerby. 1867. Tellina tenuilirata, Sowerby, in Eeeve. Conch. Icon., vol. xvii., pi. 39, f. 219(7, />. 1867. Tellina tenuilirata, Angas. P.Z.S. Lond., p. 919. 1885. Tellina tenuilirata, E. A. Smith. Chall. Zool., vol. xiii.. Lam., p. 106. Catalogue of Marine Shells of Victoria. 1 1 7 1890. Tellina tenuilirata, Whitelegge. Jour. Roy. Soc. N.S.W., vol. xxiii., p. 2.38, No. 67 (p. 76 in list). Hab. — Frankston, Port Phillip. Tellina ensiformis, Sowerhy. 1868. Tellina ensiformis, Sowerby, in Reeve. Conch. Icon., vol. xvii., pi. 49, f. 289. Hab. — San Remo (Mrs. Kenyon). Tellina rudolphii, Brazier. 1898. Tellina (Strigilla) rudolphii. Brazier. P.L.S. N.S.W., vol. xxiii., pt. 2, p. 272. Hab. — San Remo (Mrs. Kenyon). Obs. — We have not yet met with either this or the foregoing species from our shores, but the specimens in Mrs. Kenyon's possession are undoubtedly good species. Tellina decussata, Wood. 1815. Tellina decussata. Wood. General Conch., p. 190, pi. 43, f. 2, 3. 1818. Tellina decussata, Lamarck. Anini. S. Vert., vol. v., p. 532. 1819. Tellina decussata, Lamarck. Id. (ed. Desh.), vol. vi., p. 205. 1825. Tellina decussata. Wood. Index Test., p. 22, pi. 4, f. 81 (bad figure, might be ours). 1839. Tellina decussata, Lamarck. /^. (3rd ed. Deshayes and Edwards), vol. ii., p. 568, No. 45, 1842. Tellina decussata, Hanley. Cat. Rec. Biv, Shells, p. 70. 1846. Tellina decussata, Sowerby. Thes. Conch,, vol. i., p. 262, No. 74, pi. 60 in text, pi. 62 on plate, f. 184. Tellina decussata, Roemer. Mon. Tellina, pi. 23, f. 1-3. 1865. Arcopagia decussata, Angas. P.Z.S. Lond., p. 647, No. 26. 1866. Tellina decussata. Reeve. Conch. Icon., vol. xvii., pi. 17, f. 88. 118 Proceedings of the Royal Society of Victoria. 1878. Tellina (Arcopagia) decussata, T. Woods. P.R.S. Tas., p. 49. 1901. Tellina (Pseudoarcopagia) decussata, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 426. Hab.— Common in Port Phillip, also Western Port, Anderson's Inlet and Kilcunda (W. IJ. Ferguson). Tellina, n. sp. Hab. — Rye to Portsea, Port Phillip. Obs. — This form is something of the T. albinella type, but is much more robust, more strongly convex, and sculptured. Genus Macoma, Leach, 1819. Macoma mabiae, T. Woods. 1876. Tellina mariae, T. Woods. P.R.S. Tas., p. 162. 1901. Macoma mariae, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 426. Hab. — Port Phillip, common from Portarlington to Geelong ; Western Port. Obs. — Tate and May in dealing with this species include M. rudis, Bertin, Archives, Mus. Nat. Hist., 1878, p. 335, pi. 9, f. 2, as a synonym, and give Port Phillip as the locality of the type ; we have not seen this work, and have, therefore, been unable to confirm this point. Family Donacidae. Genus Donax, Linnaeus, 1758. DoNAX DELTOIDES, Lamarclc. 1819. Donax deltoides, Lamarck. Anim. S. Vert. (ed. Desh.), vol. vi., p. 241. 1819. Donax epidermia, Lamarck. Id., p. 243. 1839. Donax deltoides, Lamarck. Id. (3rd ed. Deshayes and Edwards), vol. ii., p. 579, No. 5. 1839. Donax epidermia, Lamarck. Id., p. 580, No. 12. 1842. Donax deltoides, Hanley. Cat. Rec. Biv. Shells, p. 80. 1842. Donax epidermia, Hanley. Id., p. 80. 1854. Donax deltoides. Reeve. Conch. Icon., vol. viii., pi. 1, f. 4fl, 4^. Catalogue of Marine Shells of Victoria. 119 1856. Donax deltoides, Hanley. Cat. Rec. Biv. Shells, p. 349, pi. 14, f. 23. 1865. Latona epidermia, Angas. P.Z.S., Lond., p. 647, No. 27. 1866. Donax deltoides, Sowerby. Thes. Conch., vol. iii., p. 310, No. 37, pi. 283, f. 100, 101. Hab. — C. Bridgevvater ; Apollo Bay; Airey's Inlet; Kilcunda and Anderson's Inlet (W. H. Fei'guson) ; Port Albert. Donax cakdioides, Lamarck. 1818. Donax cardioides, Lamarck. Anim. S. Vert., vol. v., p. 550, No. 21. 1835. Donax cardioides, Quoy and Gaimard. Astrolabe Zool., vol. iii., p. 495, pi. 81, f. 17-19. 1839. Donax cardioides, Lamarck. Anim. S. Vert. (3rd ed. Deshayes and Edwards), vol. ii., p. 581, No. 21. 1841. Donax cardioides, Delessert. Recueil de Coq., pi. 6, f. 14^?, /}, c, No. 21. 1842. Donax cardioides, Hanley. Cat. Rec. Biv. Shells, p. 82. 1856. Donax cardioides, Hanley. Id., p. 349, pi. 13, f. 9. Hab. — Portsea ; San Remo ; Shoreham ; Cowes, Phillip Island (T. 8. Hall); Kilcunda and Anderson's Inlet (W. H. Ferguson). Family Petricolidab. Genus Venerupis, Lamarck, 1818. Venerupis exotica, Lamarck. 1819. Venerupis exotica, Lamarck. Anim. S. Vert. (ed. Desh.), vol. vi., p. 162, No. 4. 1819. Venerupis carditoides, Lamarck. Id., p. 164, No. 7. 1839. Venerupis exotica, Lamarck. Id. (3rd ed. Des- hayes and Edwards), vol. ii., p. 556, No. 4. 1839. Venerupis carditoides, Lamarck. Id., p. 556, No. 7. 1841. Venerupis carditoides, Delessert. Recueil de Coq., No. 7, pi. 5, f. 3a, b, c, d. 120 Proceedings of the Royal Society of Victoria. 1842. Venerupis exotica, Hanley. Cat. Rec. Biv. Shells, p. 54. 1842. Venerupis carditoides, Hanley. Id., p. 55. 1854. Venerupis exotica, Sovverby. Thes. Conch., vol. ii., p. 764, pi. 164, f. 7. 1854. Venerupis carditoides, Sowerby. /d., f. 4. 1856. Venerupis exotica. Hanley. Cat. Rec. Biv. Shells, p. 346, pi. 9, f. 29. 1874. Venerupis exotica. Reeve. Conch. Icon., vol. xix,, pi. 2, f. 11. 1874. Venerupis carditoides, Reeve. Id., pi. 1, f. 5. 1875. Venerupis exotica, Woodward. Man. Moll., p. 476, pi. 20, f. 15. 1887. Venerupis exotica, Fischer. Man. de Conch., p. 1087, pi. 20, f. 15. Hab. — Port Phillip and Western Port, commoner in the latter. Portland. Puebla Coast. Obs. — Judging from the description in Lamarck, we think it is very probable that V. distans. No. 5, is only a slight variation of the above, and perhaps ought to be regarded as a synonym. We do not agree with the treatment of various authors, indicat- ing two distinct species for these forms. Venerupis crenata, Lamarck. 1818. Venerupis crenata, Lamarck. Anim. S. Vert., vol. v., p. 508. 1819. Venerupis crenata, Lamarck. Id. (ed. Desh.), vol. vi., p. 164, No. 6. 1839. Venerupis crenata, Lamarck. Id. (3rd ed. Des- hayes and Edwards), vol. ii., p. 556, No. 6. 1841. Venerupis crenata, Delessert. Recueil de Coq., No. 6, pi. 5, f. 2a, b, c. 1842. Venerupis crenata, Hanley. Cat. Rec. Biv. Shells, p. 55. 1854. Venerupis crenata, Sowerby. Thes. Conch., vol. ii., pi. 164, f. 18, 19. 1856. Venerupis crenata, Hanley. Cat. Rec. Biv. Shells, p. 346, |.l. 12, f. 58. Catalogue of Marine Shells of Victoria. 121 1865. Rupellaria crenata, Aii^as. P.Z.S. Lond., p. 650, No. 49. 1874. Venerupis crenata, Reeve. Conch. Icon., vol. xix., pi. 1, f. 3. Hab. — Common Corio Bay ; Portarlington ; Western Port. Obs. — Our shell agrees well with Delessert's figure, but the figures given by Reeve and Hanley are not typical, and would hardly be readily recognised as our species, but the New South Wales forms agree more closely. Venerupis mitis, Deshayes. 1853. Venerupis mitis, Deshayes. P.Z.S. Lond., p. 5, No. 20. 1874. Venerupis mitis. Reeve. Conch. Icon., vol. xix., pi. 4, f. 24. Hab. — Corio Bay. Venerupis cumingii, Deshayes. 1853. Venerupis cumingii, Deshayes. P.Z.S. Lond., p. 4, No. 13, pi. 18, f. 3. 1865. Rupellaria cumingi, Angas. P.Z.S. Lond., p. 650, No. 50. 1874. Venerupis cumingii. Reeve. Conch. Icon., vol. xix.. No. 18, pi. 3, f. 18. Hab. — Western Port, Flinders. Venerupis, sp. Hab. — Portarlington. Obs. — As yet an unidentified species, comparable in some respects to V. obesa, Deshayes, but apparently distinct. ChOPistodon, Jonas, 1844. ChORISTODON LAPICIDUM, Chemnitz. Venus lapicida, Chemnitz. Hist. Conch., pi. 172, f. 1664, 1665. Venus divergens, Chenuiitz. Id., f. 1666, 1667. 1819. Petricola luciiialis, Lamarck. Anim. S. Vert. (2nd ed. Desli.), vol. vi., p. 157. 1825. Venus lapicida, Wood. Index Test., p. 37, pi. 8, f. 72. 122 Proceedings of the Royal Society of Victoria. 1825. Venus divergens, Wood. Id., f. 73. 1832. Petricola lucinalis, Hanley. Cat. Rec. Biv. Shells, p. 52. 1832. Petricola divergens, Hanley. Id., p. 52. 1832. Petricola lapicida, Hanley. Id., p. 53. 1884. Choristodon di\ aricatum, Tryon. Struct, and Syst. Conch., vol. iii., p. 175, pi. 112, f. 95 (given as f. 94 in text). 1887. Naranio divaricata, Tate. T.R.S. S.A., vol. ix., p. 89. 1897. Choristodon lapicidum, Tate. Id., vol. xxi., pt. i., p. 46. Hab. — San Renio (Mrs. Kenyon). Family Veneridae. Genus Chione, Megerle, 1811. Chione disjecta, Perry. 1811. Venus disjectci, Perry. Conch, pi. 58, f. 3. 1818. Venus lamellata, Lamarck. Anira. S. Vert., vol. v., p. 592, No. 28. 1819. Venus lamellata, Lamarck. Id., vol. vi. (ed. Desh.), p. 349, No. 28. 1825. Venus lamellata, Wood. Index Test., p, 5, pi. 2, f. 1. 1839. Venus lamellata, Lamarck. Anim. S. Vert. (3rd ed. Deshayes and Edwards), vol. ii., p. 611, No. 28. 1841. Venus lamellata, Delessert. Recueil de Coq., No. 28, pi. 10, f. 6a, b, c. 1842. Venus lamellata, Hanley. Cat. Rec. Biv. Shells, p. 119. 1853. Venus lamellata, Sowerby. Thes. Conch., vol. ii., p. 725, pi. 160, f. 175. 1863. Venus lamellata, Reeve. Conch. Icon., vol. xiv., pi. 18, f. 78. 1865. Chione (Circomphalus) lamellata, Angas. P.Z.S. Lond., p. 648. No. 35. Catalogue of Marine Shells of Victoria. 123 1869. Venus lamellata, PfeifFer. Conch. Cab., vol. xi., p. 205, No. 61, pi. 33, f. 5, 6, 10, 11, 12. 1878. Venus (Cliione) lamellata, T. Woods. P.R.S. Tas., p. 51. 1902. Chione disjecta, Gatliff. V.N., vol. xix., p. 76. Hab.— Port Phillip; Western Port; Portland (Maplestone). Obs. — We regret that it has been found necessaiy to change the well-known name of this species, the older name having been re-discovered by Mr. Gatliff, and almost at the same time by Mr. Hedley, the latter's publication being the first to appear. Chione fumigat.a., Sowerby. 1853. Tapes funiigata, Sowerby. Thes. Conch., vol. ii., p. 737, No. 102, pi. 159, f. 152-155. 1853. Venus laevigata, Sowerby. Id., vol. ii., p. 738, No. 103, pi. 159, f. 156-158. 1864. Tapes faba, Reeve. Conch. Icon., vol. xiv., pi. 8, f. 39. 1878. Venus (Chione) laevigata, T. Woods. P.R.S. Tas., p. 51. 1878. Venus (Chione) fumigata, T. Woods. Id., p. 51. 1878. Chione (Marcia) laevigata, Angas. P.Z.S. Lond., p. 870. 1900. Chione fumigata (var. laevigata) Lodder. P.R.S. Tas., p. 17 (in reprint). No. 631. 1901. Chione laevigata, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 427. Hab. — Common in Port Phillip ; Portland (Maplestone). Chione gallinula, Lamarck. 1818. Venus gallinula, Lamarck. Anim. S. Vert., vol. v., p. 592, No. 25. 1819. Venus gallinula, Lamarck. Id. (ed. Desh.), vol. vi., p. 348, No. 25. 1828. Venus costulata. Wood. Index Test. Sup., p. 5, pi. 2, f. 15. 1839. Venus gallinula, Lamarck. Anim. S. Vert. (3rd ed. Deshayes and Edwards), vol. ii., p. 611, No. 25. 124 Proceedings of the Royal Society of Victoria. 1841. Venus gallinula, Delessert. Recueil de Coq., No. 25, pi. 10, £. la, b, c. 1842. Venus gallinula, Hanley. Cat. Rec. Biv. Shells, p. 119. 1853. Venus gallinula, Sowerby. Thes. Conch., vol. ii., p. 730, No. 79, pi. 162, f. 225, 226. 1863. Venus gallinula, Reeve. Conch. Icon., vol. xiv., pi. 22, f. 106. 1864. Venus tasnianica, Reeve. Id., pi. 24, f. 121. 1878. Venus (Chione) gallinula, T. Woods. P.R S. Tas., p. 51. 1897. Chione gallinula, Tate. T.R.S. S.A. vol. xxi., pt. 1, p. 47. 1902. Chione gallinula, Hedley. Mem. Austr. Mus., vol. iv., pt. 5, p. 323. Hab. — Portsea, Port Phillip; Anderson's Inlet (W. H. Fergu- son). Ohs.- — We think that Mr. Hedley is probably correct in including V. coelata, ^Menke, as a synonym of this species, though Menke appears to have only had a young specimen. Hanley indicates that on the authority of Deshayes, V. lago- pus, Lamarck, and A'^. gallinula, Lamarck, are identical, and the habitat of each is given as New Holland. The former of these two species is numbered 23 in Lamarck and the latter 25, but as the description of V. lagopus is more exactly that of V. aus- tralis, Sowerby, we think that an examination of the types will show that it is the same as Sowerby's species. We do not agree with Tate and May in including V. tasmanica, Reeve, as a synonym of V. australis, Sowerby, but include it as above. Chione lagopus, Lamarck. 1818. Venus lagopus, Lamarck. Anim. S. Vert., vol. v., p. 591, No. 23. 1819. Venus lagopus, Lamarck. Id. (ed. De.sh.). vol. vi.) p. 347, No. 23. 1835. Venus australis, Sowerby (non Gmelin). P.Z.S. Loud., p. 22. 1839. Venus lagopus, Lamarck. Anim. S. Vert. (3rd ed. Deshayes and Edwards), vol. ii., p. 610, No. 23. Catalogue of Marine Shells of Victoria. 125 1842. Venus australis, Hanley. Cat. Rec. Biv. Shells, p. 118. 1842. Venus lagopus, Hauley. Id., p. 115. 1843. Venus lagopus, Menke. Moll. Nov. Holl., p. 43, No. 249. 1853. Venus australis, Howerhy. Thes. Conch., vol. ii., p. 719, No. 48. 1856. Venus australis, Hanley. Cat. Rec. Biv. Shells, p. 358, pi. 15, f. 48. 1863. Venus australis, Reeve. Concli. Icon., vol xiv., pi. 22, f. 107 a, b. 1865. Chione (Timoclea) australis, Angas. P.Z.S. Lond., p. 648, No. 38. 1869. Venus australis, Pfeiffer. Conch. Cab., vol. xi., p. 219, No. 73, pi. 36, f. 4, 5. 1878. Venus (Chione) australis, T. Woods. P.R.S. Tas., p. 51. 1885. Venus (Leukoma) australis, E. A. Smith. Chall. Zool., vol. xiii., Lam., p. 131. 1897. Chione australis, Tate. T.R.S. S.A., vol. xxi., pt. 1, p. 47. 1901. Chione australis, Tate and jNIay. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 427. 1903. Chione lagopus, Hedley. P.L.S. N.S.W., vol. xxvii., pt. 4, p. 596. Hab. — Portsea, Port Phillip; Western Port; San Remo. Chionk cardioides, Lamarck. 1818. Erycina cardioides, Lamarck. Aniin. S. Vert., vol. v., p. 486 (non Venus cardioides, Lamarck, p. 590). 1839. Erycina cardioides, Lamarck. Id. (3rd ed. Des- hayes and Edwards), vol. ii., p. 541, No. 1. 1841. Erycina cardioides, Delessert. Recueil de Coq., pi. 4, f. la, b c. 1842. Erycina cardioides, Hanley. Cat. Rec. Biv. Shells, p. 40. 1853. Venus striatissinia, Sowerby. Thes. Conch., vol. ii., p. 718, pi. 157, f. 103-105. 126 Proceedings of tlie Royal Society of Victoria. 1864. Venus striatissiina, Reeve. Conch. Icon., vol. xiv., pi. 26, f. 135. 1878. Venus (Chione) striatissima, T. Woods. P.R.S. Tas., p. 51. 1885. Venus (Chione) striatissima, E. A. Smith. Cliall. Zool., vol. xiii., Lam., p. 124. 1902. Chione striatissima, Hedley. Mem. Austr. Mus., vol. iv., pt. 5, p. 323. Hab. — St. Kilda, Sandringham, Frankston, Portsea, Port Phillip ; Western Port ; oft' East Moncoeur Island, Bass Strait {Challenger). Obs. — Hanley, in the reference given above, states that he has seen Lamarck's own specimen, and that it does not belong to Erycina, but is " more like an aberrant Venus." The uniting of striatissima and cardioides had been decided upon by us from an examination of Delessert's work, but we think it is clear that cardioides, Lamarck, is the name which should stand for this species, and that the shell which requires a change of name is that subsequently described by Lamarck as Venus cardioides, if it should prove to be a Chione. Chione strigosa, Lamarck. 1818. Venus strigosa, Lamarck. Anim. S. Vert., vol. v., p. 605, No. 79. 1819. Venus strigosa, Lamarck. Id. (ed. Desh.), vol. vi., p. 368. 1839. Venus strigosa, Lamai-ck. Id. (3rd ed. Deshayes and Edwards), vol. ii., p. 617, No. 79. 1853. Venus strigosa, Sowerby. Thes. Conch., vol. ii., p. 736, No. 99, pi. 162, f. 222, 223. 1863. Venus strigosa, Reeve. Conch. Icon., vol. xiv., pi. 20, f. 96^. 1878. Tapes victoriae, T. Woods. T.R.S. Vic, vol. xiv., p. 60. 1903. Chione strigosa, Pritchard and Gatliff. P.R.S. Vic, vol. xvi., n.s., pt. 1, p. 94, pi. 15, f. 4, 5, 6. Hab. — Coast generally, very common. Catalogue of Marine Shells of Victoria. 127 Obs. — The type of Tapes victoriae, T. Woods, is from Hobson's Bay, and is in the National Museum, Melbourne, and is undoubt- edly a form of the above. Chionk SCALARINA, Lamarck. 1818. Venus scalarina, Lamarck. Anim. S. Vert., vol. v., p. .599, No. 54. 1819. Venus scalarina, Lamarck. Anim. S. Vert. (ed. Desh.), vol. vi., p. 359, No. 54. 1839. Venus scalarina, Lamarck. Id. (3rd ed. Deshayes and Edwards), vol. ii., p. 614, No. 54. 1841. Venus scalarina, Delessert. Recueil de Coq., No. 54, pi. 10, f. \2a, b, c. 1842. Venus scalarina, Hanley. Cat. Rec. Biv. Shells, I). 123. 1843. Venus scalarina, Menke. Moll. Nov. Holl., p. 44, No. 254. 1853. Venus scalarina, Sowerby. Thes. Conch., vol. ii., p. 736, No. 96, pi. 162, f. 220. 1856. Venus scalarina, Hanley. Cat. Rec. Biv. Shells, p. 358, pi. 16, f. 4. 1863. Venus aphrodinoides. Reeve (non Lamarck). Conch. Icon., vol. xiv., pi. 17, f. 73. 1869. Venus scalarina, Pfeiffer. Conch. Icon., vol. xi., p. 212, pi. 34, f. 8-10. 1903. Chione scalarina, Pribchard and Gatliff. P.R.S. Vic, vol. xvi., n.s.,.pt. 1, p. 94, pi. 15, f. 7. 8. Hab. — Coast generally. Chione peronii, Lamarck. 1818. Venus peronii, Lamarck. Anim. S. Vert., vol. v., p. 606, No. 81. 1819. Venus peronii, Lamarck. Id. (ed. Desh.), vol. vi., p. 369, No. 81. 1839. Venus peionii, Lamarck. Id. (3rd ed. Deshayes and Edwards), vol. ii., p. 617, No. 81. 1853. Venus peronii, Sowerby. Thes. Conch., vol. ii., p. 736, No. 97, pi. 162, f. 224. 1863. Venus peronii. Reeve. Conch. Icon., vol. xiv., pi. 20, f. 93. 128 Proceedings of tlie Royal Society of Victoria. 1903. Chione perouii, Pritchard and Gatlift". P.R.S. Vic, vol. xvi., pt. 1, p. 94, pi. 15, f. 9, 10. Hah. — Coast generally. Obs.- — Our reasons for limiting the references to the three foregoing species are fully set fortli in the paper immediately preceding this part of the Catalogue. Chione placida, Philippi. 1844. Venus placida, Philippi. Abbild. Besch., vol. i., p. 128, pi. 2, f. 2. 1844. Venus roborata, Hanley. P.Z.S. Loncl., p. 161. 1853. Venus roborata, Sowerby. Thes. Conch., vol. ii., p. 723, No. 60, pi. 157, f. 116-118. 1856. Venus roborata, Hanley. Cat. Rec. Biv. Shells, p. 361, pi. 16, f. 25. 1863. Venus roborata. Reeve. Conch. Icon., vol. xiv., pi. 23, f. 113. 1869. Venus roborata, Pfeifter. Conch. Cab., vol. xi., pp. 238, 239, No. 93, pi. 41, f. 3-5. 1878. Venus (Chione) roborata, T. Woods. P.R.S. Tas., p. 51. 1902. Chione placida, Hedley. Mem. Austr. Mus., vol. iv., pt. 5, p. 322. Hab.— Portsea, Port Pliillip ; San Remo ; Port Albert (T. Worcester). Obs. — In the last reference, Mr. Hedley shows that, according to date of publication, priority falls to Pliilippi's name. Pfeifi'er, in the Conchylien Cabinet, and others, give V. placida as a synonym of V. roborata, and do not appear satisfied that Pliilippi's name has priority. Chione undulosa, Lamarck. 1818. Venus undulosa, Lamarck. Anim. S. Vert., vol. v., p. 606, No. 85. 1819. Venus undulosa, Lamarck. Id. (ed. Desh.), vol. vi., p. 370, No. 85. 1835. Venus variabilis, Sowerby. P.Z.S. Lond., p. 42. 1839. Venus undulosa, Lamarck. Anim. S. Vert. (3rd ed. Deshayes and Edwards), vol. ii., p. 617, No. 85. Catalogue of Marine Shells of Victoria. 129 1842. Venus undulosa, Hanley. Cat. Rec. Biv. Shells, p. 12G. 18-43. Venus undulosa, Pliilippi. Ablnld. Besch., vol. i., p. 39, pi. i., f. 1. 1853. Venus undulosa Sowerby. Thes. Conch., vol. ii., p. 738, No. 107, pi. 158, f. 142-146. 1856. Venus undulosa, Hanley. Cat. Rec. Biv. Shells, p. 358, pi. 15, f. 40. 1864. Venus undulosa. Reeve. Conch. Icon., vol. xiv., pi. 24, f. 117, and pi. 25, f. 126. 1878. Tivela undulosa, Angas. P.Z.S. Lond., p. 870, No. 63. 1884. Venus (Marcia) undulosa, Tryon. Struct, and Syst. Conch., vol. iii., p. 177, pi. 113, f. 18. 1885. Venus (Gomphina) undulosa, E. A. Smith. Ohall. Zool., vol. xiii.. Lam., p. 132. Hab. — Portsea, Port Phillip ; San Remo ; dredged alive off Balnarring, Western Port ; Kilcunda and Cape Paterson to Anderson's Inlet (W. H. Ferguson) ; Airey's Inlet ; Apollo Bay to Blanket Bay. Genus Mepetrix, Lamarck, 1799. Meretrix disrupta, Sowerby. 1853. Cytherea disrupta, Sowerby. Thes. Conch., vol. ii., p. 743, pi. 163, f. 208, 209. 1885. Cytherea (Callista) disrupta, E. A. Smith. Chail. Zool., vol xiii.. Lam., p. 135, pi. 1, f. 4-4^. Hab.— Port Phillip Heads. Obs. — We agree with Mr. Hedley in regarding this as distinct from M. planatella, though very closely related. Meretrix planatella, Lamarck. 1818. Cytherea planatella, Lamarck. Anim. S. Vert., vol. v., p. 565, No. 19. 1819. Cytherea planatella, Lamarck. Id. (ed. Desh.), vol. vi., p. 305, No. 19. 1835. Venus nitida, Quoy and Gaimard. Astrolabe Zool., vol. iii., p. 529, pi. 84, f. 13, 14. 130 Proceedings of tJte Royal Society of Victoria. 1839. Cytherea planatella, Lamarck. Anim. S. Vert. (Srd ed. Deshayes and Edwards), vol. ii., p. 599, No. 19. 1844. Cytherea diemenen.si.s, Hanley. P.Z.S. Lend., p. 110. 1845. Cytherea planatella, Philippi. Abbild. Besch., vol. i., p. 199, pi. 3, f. 6. 1851. Cytherea planatella, Sowerby. Thes. Conch., vol. ii., p. 786. 1851. Cytherea innocens, Sowerby. /c/., vol. ii., p. 743, sp. 118, pi. 163, f. 210. 1869. Callista planatella, Roraer. Mon. Venus, p. 65, No. 21, pi. 19, f. 2. 1878. Callista dienianensis, T. Woods. P.R.S. Tas., p. 51. 1901. Meretrix planatella, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 428. 1902. Meretrix planatella, Hedley. Mem. Austr. Mus., vol. iv., pt. 5, p. 323. Hab. — San Remo. Obs. — We think Venus nitida, Quoy and Gaimard, a very doubtful inclusion with the above. Meretrix paucilamellata, Dunker. 1858. Mercenaria paucilamellata, Dunker. Novit. Conch. p. 52, pi. 16, f. 10-12. 1863. Cytherea alatus. Reeve. Conch. Icon., vol. xiv. pi. 18, f. 83. 1876. Callista victoriae, T. Woods. P.R.S. Tas., p. 159 1880. Mercenaria paucilamellata. Brazier. P.L.S. N.S.W. vol. v., p. 486, No. 9. 1885. Venus (Chione) jacksoni, E. A. Smith. Chall Zool., vol. xiii., Lam., p. 123, pi. 3, f. 2-26". 1897. Meretrix alatus, Tate. T.R.S. S.A., vol. xxi., pt 1, pp. 47, 48. Hab. — Portland ; Otway Coast ; Port Albert (T. Worcester). Meretrix kingii, Gray. 1827. Cytherea kingii. Gray, in King's Survey of Aus- tralia, vol. ii., p. 474. Catalogue of Mar me Sltells of Victoria. 131 1828. Venus kingii, Wood. Index Test., Sup. p. 5, sp. 9, pi. 2, f. 9. 1838. Cytherea kmarckii, Gray. Analyst, vol. viii., p. 308. 1842. Cytherea kingii, Hanley. Cat. Rec. Biv. Shells, p. 106. 1842. Cytherea lamarkii, Hanley. Id., p. 103. 1851. Cytherea kingii, Sowerby. Thes. Conch., vol. ii., p. 638, sp. 92, pi. 133, f. 129, 130. 1851. Cytherea lamarckii, Sowerby. Id., p. 785, f. 129. 1851. Cytherea rutila, Sowerby. Id., p. 743, sp. 116, pi. 163, f. 205. 1853. Dione kingii, Deshayes. B. M. Cat., pt. 1, p. 69, No. 42. 1853. Dione rutila, Deshayes. Id., p. 58, No. 7. 1853. Dione lamarckii, Deshayes. Id., p. 69, No. 45. 1863. Dione rutila, Reeve. Conch. Icon., vol. xiv., pi. 5, f. 18. 1863. Dione kingii. Reeve. Id, pi. 9, f. 36^. 1869. Cytherea (Callista) rutila, Rbnier. Mon. Venus, vol. i., p. 51, No. 6. 1869. Cytherea (Caryatis) kingii, Ronier. Id., p. 69, pi. 26, f. 1. 1869. Cytherea (Caryatis) lamarckii, Rumer. Id., p. 97, No. 20, pi. 26, f. 2 on plate. 1885. Cytherea (Callista) rutila, E. A. Smith. Chall. Zool., vol. .\iii., Lam., p. 133. 1895. Cytherea kingii. Cox. Observations on a Cytherea found in Bass Straits. Printed in Sydney. 1900. Cytherea lamarckii, Hedley. P.L.S. N.S.W., vol. XXV., pt. 3, p. 498. Hab. — Common in Port Phillip, dredged alive off Brighton, 4 to 5 fathoms; Western Port; off East Moncoeur Island, Bass Strait (Challenger). Genus CiPCe, Schumacher, 1817. ClKCE PYTHINOIDES, T. Woods. 1878. Circe pythinoides, T. Woods. T.R.S. Vic, vol. xiv., p. 60. 9.\ 132 Pi-oceedings of the Royal Society of Victoria. Hab. — Port Phillip Heads. Obs. — The type of this species is in the National Museum, Melbourne, but we have not yet critically compared this with other Australian species. Genus Sunetta, Link, 1807. SuNETTA EXCAVATA, Hanley. 1842. Cytherea excavata, Hanley. P.Z.S. Lond., p. 123. 1842. Cytherea excavata, Hanley. Cat. Rec. Biv. Shells, p. 109. 1843. Cytherea vaginalis, Menke. Moll. Nov. Holl., p. 42, No. 246. H847. Cytherea vaginalis, Philippi. Abbild. Besch., vol. iii., p. 96, pi. 3, f. 2. 1851. Meroe excavata, Sowerby. Thes. Conch., vol. ii., p. 610, No. 5, pi. 126, f. 13, 14. 1856. Cytherea excavata, Hanley. Cat. Rec. Biv. Shells, p. 354, pi. 15, f. 19. 1863. Sunetta aliciae, Adams and Angas. P.Z.S. Lond., p. 425, pi. 37, f. 18. 1864. Meroe vaginalis. Reeve. Conch. Icon., vol. xiv., pi. iii., f. 7. 1864. Meroe aliciae, Reeve. Id., pi. 3, f. 8. 1864. Meroe excavata, Reeve. Id., pi. 3, f. 11a, b. 1865. Sunetta aliciae, Angas. P.Z.S. Lond., p. 649, No. 45. 1869. Sunetta aliciae, Ronier. Mon. Venus, p. 13, No. 9, pi. 4, f. 1. 1869. Sunetta excavata, Romer. Id., p. 12, pi. 3, f. 3. 1881. Cuneus vaginalis, Tate. P.L.S. N.S.W., vol. vi., p. 407. 1901. Sunetta vaginalis, Tate and May. Id., vol. xxvi., pt. 3, p. 429. Hab. — Western Port; Apollo Bay to Blanket Bay (common); Lakes Enti-ance, Gippsland. Catalogue of Marine Shells of Victoria. 133 Genus Dosinia, Scopoli, 1777. DosiNiA CROCEA, Deshayes. 1853. Dosinia crocea, Deshayes. B. M. Cat., pp. 8, 9, No. 10. 1862. Dosinia crocea, Romer. Mon. Dosinia, p. 71, pi. 13, f. 4, ia, U. Hab. — San Remo. Obs. — Type from Flinders Island and in the British Museum. Dosinia variegata. Gray. 1838. Artemis variegata. Gray. Analyst, vol. viii., p. 309. 1850. Artemis variegata. Reeve. Conch. Icon., vol. vi., pi. 6, £. 33r?, not /> and c. 1852. Artemis variegata, Sowerby. Thes. Conch., vol. ii., pt. 13, p. 675, No. 72, pi. 141, f. 83. Hab.— Port Phillip ; Western Port. Dosinia coerulea, Reeve. 1850. Artemis coerulaea, Reeve. Conch. Icon., vol. vi., pi. 4, f. 25. 1852. Artemis coerulaea, Sowerby. Thes. Conch., vol. ii., pt. 13, p. 664, No. 32, pi. 142, f. 43, 44. 1853. Dosinia coerulea, Deshayes. B.M. Cat., p. 19, No. 46. 1862. Dosinia coerulaea, Romer. Mon. Dosinia, p. 71, No. 86, pi. 13, f. 4, ia, U. H;ib.— Port Phillip ; Western Port. Dosinia circinaria, Deshayes. 1853. Dosinia circinaria, Deshayes. B. M. Cat., pp. 9, 10, No. 14. 1862. Dosinia circinaria, Romer. Mon. Dosinia, p. 19, No. 16. 1863. Dosinia cydippe, A. Adams. P.Z.S. Lond., p. 224. 1885. Dosinia circinaria, E. A. Smith. Chall. Zool., vol. xiii.. Lam., p. 150, pi. 1, f. 2. 1890. Dosinia circinaria, Whitelegge. Jour. Roy. Soc_ N.S.W., vol. xxiii., p. 240, No. 105 (p. 78 in list). 1 34 Proceedings of tJte Royal Society of Victoria. 1898. Lucina (Codakia) ambigua, Brazier. P.7..S. N.S.W., vol. xxiii., pt. 2, p. 272. 1901. Dosinia cincinaria, Tate and May. /d., vol. xxvi., pt. 3, p. 429. Hab. — Rye to Portsea, Port Phillip ; Western Port, Obs.- — The type of L. ambigua, Brazier, is in tlie possession of Mrs. Kenyon, and has been examined, so that there is no doubt a])out its inclusion with the above, it is simply a stunted form with irregular lines of growth. Genus, Tapes, Megerle von Miihlfeldt, 1811. Tapes fabagella, Deshayes. 1853. Tapes fabagella, Deshayes. P.Z.S. Lond., p. 10, No. 45. 1853. Tapes fabagella, Deshayes. B. M. Cat., pt. 1, p. 182, No. 62. 1864. Tapes fabagella. Reeve. Conch. Icon., vol. xiv., pi. 13, f. 66. 1869. Tapes fabagella, Romer. Mon. Venus, p. 91, No. 68, pi. 31, f. 2, -la, lb. 1876. Rupellaria reticulata, T. Woods. P.R.S. Tas., p. 159. 1878. Tapes flabagella, Angas. P.Z.S. Lond., p. 870, No. 61. 1885. Tapes (Amygdala) fabagella, E. A. Smith. Chall. Zool., vol. xiii., Lam., p. 116. 1901. Tapes fabagella, Tate and May. P.L.S. N.S.AV., vol. xxvi., pt, 3, p. 429. Hab. — Common in Port Phillip and Western Port. Puebla Coast. Obs. — Tate and May include in the synonomy of the above Tapes victoriae, T. Woods, the type of which is in the National Mu.seum, Melbourne, but from our examination we have referred that shell to Chione strigosa. Tapes galactites, Lamarck. 1818. Venus galactites, Lamarck. Anim. S. Vert., vol. v., p. 599, No. 52. Catalogue of Marine Shells of Victoria. 135 1819. Venus galactites, Lamarck. Id. (ed. Desh.), vol. vL, p. 359, No. 52. 1827. Venerupis galactites, Gray, in King's survey of Australia, vol. ii., p. 475, No. 7. 1839. Venus galactites, Lamarck. Anini. S. Vert. (3rd ed. Deshayes and Edwards), vol. ii., p. 614, No. 52. 1842. Venus galactites, Hanley. Cat. Rec. Biv. Shells, p. 123. 1852. Tapes galactites. Sowerby. Thes. Concli., vol. ii., p. 695, pi. 151, f. 132. 1853. Tapes galactites, Deshayes. B. M. Cat., pt. 1, p. 183, No. 66. 1856. Venus galactites, Hanley. Cat. Rec. Biv. Shells, p. 358, pi. 15, f. 51. 1864. Tapes galactites. Reeve. Conch. Icon., vol. xiv., pi. 12, f. 65. 1869. Tapes galactites, Romer. Mon. Venus, p. 93, No. 72, pi. 32, f. 3. 1878. Rupellaria subdecussata, T. Woods. P.R.S. Tas., p. 52. 1901. Tapes galactites, Tate and May. P.L.S. N.S.W., vol. xxvi., pt. 3, p. 429. Hab.— Very common in Port Phillip ; Western Port ; Ander- son's Inlet and Kilcunda (W. H. Ferguson). Family Cardiidak. Genus Cardlum, Linnaeus, 1758. Cakdium cygnorum, Deshayes. 1854. Cardium cygnorum, Deshayes. P.Z.S. Lond., p. 331, No. 63. 1865. Cardium (Trachycardium) cygnorum, Angas. P.Z.S. Lond., p. 651, No. 53. 1878. Cardium cygnorum, T. Woods. P.R.S. Tas., p. 53. Hab. — Old valves occasionally obtained at Carrum, Rye, Port- sea, Port Phillip ; dredged alive Western Port. 136 Proceedings of the Royal Society of Victoria. Cardium pulchellum, Gray. 1840. Cardium striatuluin, Sowerby (non Brocchi). P.Z.tS. Load., p. 105. 1841. Cardium striatulum, 8o\verby. Conch. 111., sp. 9, pi. 49, f. 16, and pi. 177, f. 45. 1842. Cardium striatulum, Hanley. Cat. Rec. Biv. Shells, p. 135. 1843. Cardium pulchellum. Gray. Dietfenbach's New Zealand, vol. ii., p. 252. 1844. Cardium pulchellum, Reeve. Conch. Icon., vol. ii., pi. 8, f. 42. 1844. Cardium striatulum, Reeve. Id., pi. 86, f. 60. 1856. Cardium striatulum, Hanley. Cat. Rec. Biv. Shells, p. 363, pi. 17, f. 9. 1873. Cardium striatulum, Hutton. Cat. Moll. N.Z., p. 73, No. 80. 1878. Cardium jiulchellum, Angas. P.Z.S. Load., p. 870, No. 64. 1880. Cardium striatulum, Hutton. Man. N.Z. Moll., p. 153. 1885. Cardium (Bucardiura) pulchellum, E. A. Smith. Chall. Zool., vol. xiii., Lara., p. 161. 1901. Cardium pulchellum, Suter. Trans. N.Z. Inst., vol. xxxiv., p. 222. 1902. Cardium striatulum, Hedley. Mem. Austr. Mus., vol. iv., pt. 5, p. 322. Hab. — Off Port Phillip, and off East Moncoeur Island, Bass Strait (Challenger) ; Port Phillip Heads (J. B. Wilson) ; Portsea ; dredged off Rhyll, Western Port, about 6 fathoms. Obs. — We quite agree with Mr. E. A. Smith's treatment of this species. Mr. Hedley states in his above quoted paper that f. 45, in Sowerby, Conchological Illustrations, is not this shell. With this we do not agree. Cardium tenuicostatum, Lamarck. 1819. Cardium tenuicostatum, Lamarck. Anim. S. Vert. (ed. Desh.), vol. vi., p. 372. 1839. Cardium tenuicostatum. Lamarck. Id. (3rd ed. Deshayes and Edwards), vol. ii., p. 624, No. 5. Catalogue of Marine Shells of Victoria. 137 1841. Cardium tenuicostatuin, Delessert. Recueil de Coq., pi. 11, f. 6a-c. 18-41. Cardium tenuicostatum, Sowerby. Conch. 111., pi. 162, f. .36. 1842. Cardium tenuicostatum, Hanley. Cat. Rec. Biv. Shells, p. 130. 1844. Cardium tenuicostatum. Reeve. Conch. Icon., vol. ii., pi. 10, f. 50. 1856. Cardium tenuicostatum, Hanley. Cat. Rec. Biv. .Shells, p. 363, pi. 17, f. 26. 1865. Papyridea tenuicostata, Angas. P.Z.S. Lond., p. 651, No. 54. Cardium tenuicostatum, Romer. Conch. Cab., p. 69, pi. 12, f. 6, 7. Cardium pallidum, Romer. Ii/., f. 92. Cardium radiatum, Romer. Id., f. 89. 1878. Cardium tenuicostatum, T. Woods. P.R.S. Tas., p. 53. 1885. Cardium (Bucardium) tenuicostatum, E. A. Smith. Chall. Zool., vol. xiii.. Lam., p. 159. 1890. Cardium tenuicostatuin, Wlnteleg