scholarly journals Addressing the Vepris verdoorniana complex (Rutaceae) in West Africa, with two new species

Kew Bulletin ◽  
2019 ◽  
Vol 74 (4) ◽  
Author(s):  
Martin Cheek ◽  
Jean-Michel Onana ◽  
Shigeo Yasuda ◽  
Poppy Lawrence ◽  
Gabriel Ameka ◽  
...  

Summary Vepris verdoorniana (Rutaceae) has long been regarded as a widespread and variable species occurring from Guinea to Gabon. Recent evidence has shown that the original material from the type locality in Cameroon consists of two different species, V. verdoorniana in the strict sense, endemic to Lower Guinea (Cameroon, Gabon and C.A.R. in W-C Africa) and V. letouzeyi Onana, which was thought to occur from Guinea to Cameroon. In this paper we show that the West African (Upper Guinea) material previously referred to as V. letouzeyi/V. verdoorniana is separate morphologically from that in Cameroon (Lower Guinea). In fact the West African material referred to comprises two distinct species, here described as V. occidentalis Cheek & Onana (Guinea to Ghana, but probably extending to Benin) a tree of lowland marginal dry evergreen and semi-deciduous forest, and V. fer Cheek, a species restricted to four mainly lower submontane forest locations on iron substrates in Liberia and Sierra Leone (also Upper Guinea). Vepris occidentalis is here assessed as Least Concern due to its wide range and high frequency, whilst V. fer is assessed as Endangered due to the low number of locations and threats from iron ore mining projects. Both new species are illustrated and mapped.

Phytotaxa ◽  
2014 ◽  
Vol 183 (4) ◽  
pp. 263
Author(s):  
Robert Douglas Stone

Under the principle of priority, Memecylon liberiae is the correct name for the West African species previously known as M. aylmeri. A lectotype is designated for M. liberiae from the original material rediscovered in the Berlin herbarium. Use of the neotype designated by Jacques-Félix must therefore be abandoned. A new species M. emancipatum is proposed to replace M. liberiae sensu Jacques-Félix. A revised identification key is provided for the West African species of Memecylon sensu stricto.


The Festivus ◽  
2018 ◽  
Vol 50 (3) ◽  
pp. 164-172
Author(s):  
Edward Petuch ◽  
David Berschauer

Six sympatric species of the cone shell genus Lautoconus Monterosato, 1923 have been discovered on an isolated rock reef near the Gambia River Mouth, Gambia, West Africa. Of these, four were found to be new to science and, together, they represent a previously unknown Gambian endemic species radiation. These include: Lautoconus fernandi new species, L. gambiensis new species, L. rikae new species, and L. wolof new species. The poorly-known Gambian endemic cone, Lautoconus orri (Ninomiya and da Motta, 1982) was also found to be a component of the rock reef fauna, as was the wide-ranging L. guinaicus (Hwass, 1792) (Senegal to Ghana). The Gambian cluster of sibling species represents the farthest-south separate radiation of Lautoconus known from the West African coast.


Zootaxa ◽  
2008 ◽  
Vol 1712 (1) ◽  
pp. 1
Author(s):  
PIOTR NASKRECKI

The state of knowledge on sylvan katydids (Tettigoniidae, Pseudophyllinae) of Guinean Forests of West Africa hotspot is discussed. Based on published data on their distribution, and the extent of the current forest coverage of the region it is possible that some of the West African species of the Pseudophyllinae may be threatened or even extinct. Five new species are described (Adapantus affluens sp. nov., A. angulatus sp. nov., A. pragerorurm sp. nov., Tomias gerriesmithae sp. nov., and Mormotus alonsae sp. nov.), and 4 species of West African Pseudophyllinae are redescribed.


Zootaxa ◽  
2018 ◽  
Vol 4483 (1) ◽  
pp. 67
Author(s):  
LLOYD V. KNUTSON ◽  
JOHN C. DEEMING ◽  
MARTIN J. EBEJER

A review of the West African “snail-killing flies” or “marsh flies” (Sciomyzidae) shows that the fauna is not as dominated by the generally aquatic, predaceous genus Sepedon as was previously considered. Twenty species in seven genera, including three new species, Colobaea occidentalis, Pteromicra zariae and Sepedonella castanea are recorded. The Holarctic-Oriental genera Colobaea and Pteromicra are documented from Africa south of the Sahara for the first time. Biogeographical analyses based on the discovery of “Palaearctic” genera of Diptera south of the Sahara, faunal connections, and dispersal routes are presented. A key for identification and illustrations of diagnostic characters for some species are included. 


Zootaxa ◽  
2011 ◽  
Vol 2792 (1) ◽  
pp. 33
Author(s):  
MASSOUROUDINI AKOUDJIN ◽  
BRUNO MICHEL

Palpares longimaculatus nov. sp. is described from West Africa. This species resembles P. radiatus Rambur, 1842 and P. incommodus (Walker, 1853) from the same region and is very similar to P. kalahariensis Stitz, 1912 from South Africa. The characters differentiating these species are indicated. An identification key to the West African species of Palpares is provided and all the keyed species are illustrated.


1993 ◽  
Vol 83 (2) ◽  
pp. 171-186 ◽  
Author(s):  
D.A Boakye ◽  
R.J Post ◽  
F.W Mosha ◽  
D.P Surtees ◽  
R.H.A Baker

AbstractThe Simulium sanctipauli Vajime & Dunbar subcomplex of the West African S. damnosum Theobald complex is cytotaxonomically revised for the western part of the Onchocerciasis Control Programme area. The subcomplex is defined and a chromosomal key provided for the identification of the sibling species and forms recognized. Two sibling species are newly described, S. leonense Boakye, Post & Mosha (Sierra Leone) and S. konkourense Boakye, Post, Mosha & Quilleévéré (Guinea and Sierra Leone). Detailed chromosomal data are provided as warranty for the conclusions about the specific or infraspecific status of the taxa recognized.


2011 ◽  
Vol 68 (3) ◽  
pp. 343-350
Author(s):  
F. J. Breteler

The separation of Thecacoris and Cyathogyne (Phyllanthaceae, formerly Euphorbiaceae) is discussed and it is concluded that they should remain united. A separation of the continental forest species (except Thecacoris viridis (Müll.Arg.) Leandri ex G.L.Webster) awaits molecular investigation. Thecacoris micrantha sp. nov. is described and illustrated. Thecacoris grandifolia (Pax & K.Hoffm.) Govaerts from Cameroon is neotypified. Thecacoris membranacea Pax and T. annobonae Pax & K.Hoffm. are lectotypified and placed in synonymy under T. stenopetala (Müll.Arg.) Müll.Arg. and T. trichogyne Müll.Arg., respectively. Thecacoris manniana (Müll.Arg.) Müll.Arg. is united with T. stenopetala under the latter name. A key to and a synopsis of the West African species is provided.


Author(s):  
Martin A. Collins ◽  
Mary O'Dea ◽  
Camila Henriques

A large, mature, female cirrate octopod, Cirroteuthis magna, was caught in a research trawl at 3200-m depth on the Cape Verde Terrace off the west African coast in November 1999. It is only the fourth recorded specimen of this species and the largest specimen (1,700 mm TL; 330 mm ML) of cirrate octopod ever caught. Detailed measurements were taken of the fresh and preserved specimen and indicated considerable shrinkage (17–32%) during formalin preservation. Careful dissection revealed large mature eggs (12·5–14 mm long) in the proximal oviduct, and a wide range of egg sizes and development stages in the ovary. The taxonomy and ecology of the species is briefly discussed.


Author(s):  
Didier VandenSpiegel ◽  
Sergei I. Golovatch ◽  
Armand R. Nzoko Fiemapong

A new genus, Campodesmoides gen. nov., is described to only encompass C. corniger sp. nov., from Cameroon. This genus and species is distinguished from the few known species of the small western African family Campodesmidae, all currently in Campodesmus, by the much longer antennae and legs, the normal pore formula with ozopores borne on porosteles, and the suberect and distally twisted gonopod, coupled with peculiar horns on a few anterior postcollum segments. A new Campodesmus is also described, C. alobatus sp. nov., from Ivory Coast, which differs from congeners primarily in the lack of a dorsal/lateral lobe on the otherwise usual and strongly subcircular gonopod telopodite, albeit the latter is not directed mesad, but held subparallel to the main body axis.


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