j. Bare slope W. 30 S. from the middle of Barkly Bridge, on the 1. Small kloof 3 miles up the left bank of Sunday's River. The following list is based upon specimens, in the collection of the South African Museum, from Sunday's River : Specimens of the following, in the South African Museum, are also believed to have come from the Sunday's River : Specimens from Sunday's River, in the collection of the Geological Society of London: (Collected by Mr. A. W. Rogers, 1905.) a. Wash-out 100 feet above Coega station at a point one mile north of Coega Hotel. Nucula uitenhagensis sp. nov.......... Trigonia sp. (441g) b. From valley east of railway, 1 mile up the line from Coega c. Left side of Coega Valley, half a mile down from the railway. d. Left side of Coega Valley, 2 miles down from the railway. The following are in the collection of the South African Museum, from Coega: The names of all the fossils mentioned above are brought together in a synoptic list at the end of the following Section (VI.) of this memoir. (B). LIST OF INVERTEBRATE FOSSILS FROM THE UITENHAGE SERIES, NOT REPRESENTED IN THE COLLECTIONS EXAMINED. *Ptychomya complicata (Tate) Cyrena baini Sharpe Monodonta hausmanni Neum. Turritella rubidgeana Tate Hamites africanus Tate *Hoplites subanceps (Tate) Crioceras spinosissimum (Hausm.) Belemnites africanus Tate The above list is given as far as possible with corrected nomenclature, but some of the names are still subject to revision, though in nearly all instances I have been able to see either the original types or other satisfactory specimens. In the case of Pinna sharpei no specimen was seen by Tate, and the species was founded upon a drawing made by Stow from a specimen collected by another geologist. The names marked with an asterisk have received some brief mention in the second section of this paper. In addition to the above, the following forms have also been recorded from the Uitenhage beds : Sanguinolaria? africana Sharpe Phasianella? sharpei Tate Chemnitzia africana Tate Ampullaria? ignobilis Tate Acteonina jenkinsiana Tate morrisiana Tate sharpeana Tate The materials upon which these names are based are for the most part unsatisfactory, and in several cases consist of small shells which were figured by Sharpe, though considered by him to be unfitted for specific determination. Sanguinolaria? africana is a small shell of doubtful generic position, and the species may perhaps be founded upon an immature individual. Turbo stowianus has never been figured, and I have not been able to find the specimens described by Tate. Phasianella? sharpei is a minute shell, and its generic position cannot be determined. Chemnitzia africana, founded upon a single individual, has not been figured, and I have not found the type-specimen. Ampullaria? ignobilis is the name given by Tate to a very small shell figured by Sharpe, but the specimen cannot be found and its generic position is quite uncertain. The three forms ascribed by Tate to Acteonina are represented by specimens of minute dimensions figured by Sharpe. These determinations, like those above mentioned, are quite unsatisfactory; the specimens are probably immature, and in any case it is evident that more than a single genus is represented. A comparison of the names of the Mollusca in all the above lists with those in the list given by Mr. R. B. Newton in 1896* shows an apparent want of agreement in some few items, and for convenience of reference these may be briefly noted here. Reineckia subanceps of Mr. Newton's list is the shell I have referred to Hoplites. In place of Acteon (for A. atherstoni) I have been led to use Actæonina, since the shells in question show no trace of plication on the columella; it has also been possible to show that Turbo baini must now be considered as a synonym of Turbo atherstoni. To substitute the name Turbonilla in place of Tate's Chemnitzia must be regarded as hazardous in view of the fact that the original determination was unsatisfactorily established. In place of Cyprina, Mr. Newton used Arctica, a name which is unfortunately preoccupied, even were there any valid objection to the employment of the familiar and long-established name Cyprina. Ceromya papyracea is now shown to be referable to Thetironia. Tate's Crassatella complicata, as pointed out by previous writers, belongs to the genus Ptychomya, and the emendation to Crassatellites is therefore incorrect. Cucullaa cancellata in Mr. Newton's list is a synonym of Cucullaa kraussi Tate, and was no doubt retained through oversight. In the case. of Cucullaa? jonesi and Parallelodon atherstoni, which may be * Newton (2), pp. 150, 151. |