摘要:

Several papers on South African Palaeontology contain lists and descriptions of Late Tertiary and Pleistocene marine molluscs. The names of the species were those current at the time among conchologists. Later research has shown that several of those names were due to erroneous identifications. No one paper contained a complete list of the recorded species. This inconvenience is remedied by the present compact list. Notes on some of the species give reasons for nomenclatural changes. Recent collecting has added several species to the list.

ISSN:0035-919X    

DOI:10.1080/00359196209519047

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

A new species ofBitonfrom the Kalahari is described. Some observations are made on the ctenidial hairs and the tarsal spines ofBiton schreineri(Purcell) and its relationship withBroomiella lineata(Pocock). Comments are made on the distribution ofSolpuga monteiroiPocock and the systematic position of ‘Solpuga grindleyin. sp.’ Brown.

ISSN:0035-919X    

DOI:10.1080/00359196209519048

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

Fragmented fossilized bones, embedded in a large boulder broken away from a cliff near Zwartklip along the False Bay shore, are described. It is estimated that the fossils belong to the terminal period of the Upper Pleistocene. The cliffs are composed of sediments of both marine and aeolian origin. They are surfaced by a hard secondary calcareous tufa. The origin of the deposits is thought to post-date the last Interglacial.

ISSN:0035-919X    

DOI:10.1080/00359196209519049

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

The invertebrate fauna of permanently alkaline and permanently acid small lakes in the western Cape Province is described. It is discussed from the point of view that the faunal associations present are related to the pH conditions. An important part of the fauna of permanently alkaline lakes consisted of species which appeared to be limited to alkaline conditions, whereas in acid, humic lakes there were few specialized, ‘acidobiontic’ species.

ISSN:0035-919X    

DOI:10.1080/00359196209519050

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

Sixty-six species of cephalopods are listed from South Africa from the area bounded on the east by Delagoa Bay and on the west by Luderitz Bay. Four new species are described and illustrated:Idiosepius biserialis, Idiosepius macrocheir, Inioteuthis capensisandEledone thysanophora.In addition some of the species of cephalopods described by Robson from South Africa are redescribed or evaluated based on re-examination of the types in the British Museum. The history of cephalopod studies in South Africa is reviewed and all pertinent literature is cited.

ISSN:0035-919X    

DOI:10.1080/00359196209519051

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

Records of 21 species from South African waters. Three of these (Nymphon lobatum, N. pleodonandNymphopsis varipes) are new to science, the remaining species being already known from the region, although several of them are recorded for the second or third time only. The newNymphopsisis morphologically remarkable because the first pair of legs, which are uniunguiculate and possess a transformed propodus, differ in structure from the 2nd to 4th legs, which have auxiliary claws and normal propodal segments. A comparable dimorphism is rare among the Pycnogonida.

ISSN:0035-919X    

DOI:10.1080/00359196209519052

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor

摘要:

False Bay, a purely marine bay over 400 sq. miles in area with maximal depth of 90 m., is affected by the warm Agulhas Current and the cold Benguela Current. Although a limited number of samples of soft substrata showed no correlation of average particle size or of degree of sorting with depth, the content of organic matter ‘available’ as food increased with depth from 35 m. downwards. The biotas of rocky and soft bottoms were sampled by dredging and soft bottoms additionally by diving. The characteristically different biotas of such substrata were well recognized despite different amenability to sampling methods. Rocky biotas showed a broad pattern of vertical zonation when the optimal ranges of the commonest species were considered but consideration of the extreme ranges of these species showed that there was progressive thinning of the rich and varied biota of the shallows as depth increased without augmentation by species characteristic of deep rocks alone. Although soft-bottom biotas showed indisputable changes with depth, such as a change from shallow- to deep-shelf biota at about 80 m. and the relative barrenness shallower than 10 m. in regions beneath strong swell, they are more obviously arranged into grounds, some of which are tentatively described. But analysis of the extreme ranges of depth distribution of the commonest species shows a progressive replacement of shallow water species by those characteristic of deeper bottoms, a feature that contrasts sharply with that of the distribution of rocky biotas.

ISSN:0035-919X    

DOI:10.1080/00359196209519053

出版商:Taylor & Francis Group    

年代:1962

数据来源: Taylor