Galba robusta sp. nov. from Yemen (Gastropoda: Lymnaeidae)

2018 ◽  
Vol 27 (1) ◽  
pp. 3-10 ◽  
Author(s):  
M.V. Vinarski
Keyword(s):  
South Africa ◽  
East Africa ◽  
Arabian Peninsula ◽  
Central Iran ◽  
Type Locality ◽  
Nominal Species ◽  
New Taxon ◽  
North East

Mollusks of the genus Galba Schrank, 1803, inhabiting north-east Africa and the Arabian Peninsula, are separated into two morphologically distinct groups. The first group contains two conchologically indistinguishable species, G. truncatula (O.F. Müller, 1774) and G. schirazensis (Küster, 1862). The second group includes one species characterized by significantly larger size and different shell proportions as compared to G. truncatula and G. schirazensis. This species is new one and described here as G. robusta sp. nov. with type locality situated in Yemen. It is hypothesized that G. robusta sp. nov. has a vast distribution, ranging from Central Iran southwards to East Africa. A comparison of the new taxon with two nominal species of Galba, G. mweruensis (Connolly, 1929) and G. umlaasianus (Küster, 1862) described from East and South Africa, as well as some data on conchological variation of African representatives of this genus are given.

scholarly journals Morphology and distribution of the acorn barnacle Tetraclita reni nom. nov. (Crustacea: Cirripedia) in Madagascar and adjacent waters

Zootaxa ◽  
2009 ◽  
Vol 2019 (1) ◽  
pp. 57-68 ◽  
Author(s):  
BENNY KWOK KAN CHAN ◽  
CHIH-HSIUNG HSU ◽  
PEI-CHEN TSAI
Keyword(s):  
South Africa ◽  
Indian Ocean ◽  
Light Microscopy ◽  
East Africa ◽  
Western Indian Ocean ◽  
Type Locality ◽  
Museum Specimens ◽  
The South ◽  
Acorn Barnacle ◽  
Distribution Record

In Madagascan waters, both Tetraclita rufotincta Pilsbry 1916 and T. africana Ren 1989 have been reported. Tetraclita rufotincta is more widely distributed than T. africana, extending to the western Indian Ocean and east Africa. Tetraclita africana is reported from Madagascar and no further distribution record has been made apart from its type locality. Both species have pink parietes and are similar in size, which could lead to identification confusion. In this study, we revealed that T. africana differed from T. rufotincta in having multicuspidate setae on cirrus III, a feature that can be observed with both light microscopy and SEM. Additionally, the tergum of T. africana has a rounded spur and a larger basi-scutal angle than that of T. rufotincta. However, since the name Tetraclita africana has been pre-occupied under the name Tesseropora (Tetraclita) wireni africana Nilsson-Cantell, 1932, we, therefore, propose herein a replacement name, Tetraclita reni nom. nov. Based on museum specimens examined, Tetraclita reni nom. nov. is present in northeastern and southern Madagascar and Mauritius but absent from Yemen, Kenya, South Africa, Aldabra and northwestern Madagascar, suggesting the distribution of T. reni nom. nov. could be confined to the south and northeast of Madagascar and adjacent waters.

Species of the genus Formicomus Laf. from North-East Africa and adjacent parts of the Arabian Peninsula (Coleoptera: Anthicidae)1

1977 ◽  
Vol 8 (3) ◽  
pp. 197-204 ◽  
Author(s):  
J.C. van HILLE
Keyword(s):  
East Africa ◽  
Arabian Peninsula ◽  
North East

AbstractThe Finnish expedition 1961-1963 to the Sudan and Ethiopia collected 96 specimens of the genus Formicomus. Il species were identified of which two tentatively and three were hitherto unknown: F. caeruleipennis Laf., F. verschureni van Hille, F. angustiformis Fairm., F. mülleri Pic, F. lacustris Krek., F. vosseleri Pic, F. panelii n. sp., F. maigudensis n. sp., F. linnavuorii n. sp., ?F. chappuisi Pic and ?F. niveopilosus Pic. In addition, 9 different single females could not be identified.

Coffee and qat on the Royal Danish expedition to Arabia – botanical, ethnobotanical and commercial observations made in Yemen 1762–1763

2015 ◽  
Vol 42 (1) ◽  
pp. 101-112
Author(s):  
I. Friis
Keyword(s):  
East Africa ◽  
Arabian Peninsula ◽  
Made In

In spite of widespread consumption of coffee in Europe at the time of the Royal Danish expedition to Arabia 1761–1767, little was known of the cultivation of coffee in Yemen and of the Arabian coffee export to Europe. Fresh leaves of qat were used as a stimulant on the Arabian Peninsula and in East Africa, but before the Royal Danish expedition to Arabia this plant was known in Europe only from secondary reports. Two members of the expedition, Carsten Niebuhr and Peter Forsskål, pioneered studies of coffee and qat in Yemen and of the Arabian coffee export. Linnaeus' instructions for travellers requested observations on the use of coffee, but otherwise Forsskål and Niebuhr's studies of coffee and qat were made entirely on their own initiative. Now, 250 years after The Royal Danish expedition to Arabia, coffee has become one of the world's most valuable trade commodities and qat has become a widely used and banned drug.

Lithostratigraphy of the Palaeoproterozoic Hekpoort Formation (Pretoria Group, Transvaal Supergroup), South Africa

2020 ◽  
Vol 123 (4) ◽  
pp. 655-668
Author(s):  
N. Lenhardt ◽  
W. Altermann ◽  
F. Humbert ◽  
M. de Kock
Keyword(s):  
South Africa ◽  
Bushveld Complex ◽  
Sedimentary Rocks ◽  
Type Locality ◽  
Large Igneous Province ◽  
Braided River ◽  
River Systems ◽  
The West ◽  
Igneous Province ◽  
Transvaal Supergroup

Abstract The Palaeoproterozoic Hekpoort Formation of the Pretoria Group is a lava-dominated unit that has a basin-wide extent throughout the Transvaal sub-basin of South Africa. Additional correlative units may be present in the Kanye sub-basin of Botswana. The key characteristic of the formation is its general geochemical uniformity. Volcaniclastic and other sedimentary rocks are relatively rare throughout the succession but may be dominant in some locations. Hekpoort Formation outcrops are sporadic throughout the basin and mostly occur in the form of gentle hills and valleys, mainly encircling Archaean domes and the Palaeoproterozoic Bushveld Complex (BC). The unit is exposed in the western Pretoria Group basin, sitting unconformably either on the Timeball Hill Formation or Boshoek Formation, which is lenticular there, and on top of the Boshoek Formation in the east of the basin. The unit is unconformably overlain by the Dwaalheuwel Formation. The type-locality for the Hekpoort Formation is the Hekpoort farm (504 IQ Hekpoort), ca. 60 km to the west-southwest of Pretoria. However, no stratotype has ever been proposed. A lectostratotype, i.e., the Mooikloof area in Pretoria East, that can be enhanced by two reference stratotypes are proposed herein. The Hekpoort Formation was deposited in a cratonic subaerial setting, forming a large igneous province (LIP) in which short-termed localised ponds and small braided river systems existed. It therefore forms one of the major Palaeoproterozoic magmatic events on the Kaapvaal Craton.

Relations Between Neighbouring States in North-East Africa

1984 ◽  
Vol 22 (2) ◽  
pp. 273-285
Author(s):  
Peter Woodward
Keyword(s):  
East Africa ◽  
International Society ◽  
International Politics ◽  
International Order ◽  
International Dimension ◽  
North East ◽  
Pan Africanism ◽  
Foreign Politics ◽  
New States ◽  
Domestic Affairs

In recent years there has been a resurgence of interest in international politics in Africa. After the initial post-independence discussion of pan-Africanism the international dimension seemed overshadowed by the concern to account for domestic developments in many new states, and it is this imbalance which is now being redressed. Indeed, it has recently been argued by Robert Jackson and Carl Rosberg that, contrary to the situation elsewhere, Africa's international politics have assumed an order which is sadly lacking in the domestic affairs of many states: ‘At the level of international society, a framework of rules and conventions governing the relations of the states in the region has been bounded and sustained for almost two decades.’ If the contrast between internal anarchy and international order seems somewhat exaggerated, the distinction between domestic and foreign politics appears both conventional and appropriate.

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