scholarly journals Marine Bivalves of Tropical West Africa

10.5852/fft48 ◽  
2019 ◽  
Author(s):  
Rudo von COSEL ◽  
Serge GOFAS

Bivalves are one of the most important groups of marine animals: they are abundant in benthic communities, they are sought after as seafood or ornament, and their shells are almost always conspicuous on the world’s beaches. This identification guide for West African marine bivalves covers 462 species belonging to 59 families, based on an extensive material collected over several decades from Mauritania (Cap Blanc) to Angola (Baia dos Tigres), and now housed in Muséum national d’histoire naturelle, Paris. Therefore, any bivalve collected in marine near shore in West Africa is most likely to be covered. Deep sea species (those normally collected below 500 m depth, an additional 150 species) are listed but not treated. The book is profusely illustrated (over 3500 colour and 1600 greyscale photographs, 800 stippled drawings, an average of 12 views per species) so as to be accessible to the non-specialist as well. Each species is treated with: (1) a description accompanied by a drawing of the interior showing the diagnostic details of the hinge and internal impressions, and a photographic plate showing a selection of specimens from different localities across the species’ range (2) an indication of distribution accompanied by a schematic map, (3) an indication of habitat, and (4) remarks, including comparisons with similar species. In the headings for each family, generic descriptions are illustrated with thumbnails of the included species, so as to serve as a visual orientation. Morphological terms used in descriptions are explained in a Glossary. The taxonomic part is preceded by an introduction addressing the history of research, the physiography and hydrology of West African coasts, the general characteristics of bivalve molluscs and hints for collecting them. Rudo von Cosel started his lifetime commitment to malacology back in 1969, with his first field collecting trip to Cameroon. He has been working with the Muséum National d’Histoire Naturelle, Paris from 1983 to present and did extensive shore collecting in Senegal, Guinea, Cameroon, Gabon, Congo and elsewhere. From 1986 to 1989, as a marine biologist at ORSTOM (renamed in 1998, Institut de Recherche pour le Développement), he took care of the benthic sampling in several oceanographic campaigns off West Africa, off Casamance and off Guinea and Guinea-Bissau (the SEDIGUI, CHALGUI and CHALBIS) and started working on a comprehensive book on West African bivalves. He authored or coauthored about 50 scientific papers, in which 29 new genera and 168 new species are described, most of them bivalves; among these, his favorite group is definitely the razor shells, on which he is a recognized authority. He retired in 2005, but still continued research. Serge Gofas teaches Zoology and Marine Biology at University of Málaga since 1998, and has research interests in the systematics and biogeography of marine mollusks in Europe and West Africa. He started his career in 1980 as a micropaleontologist for the oil industry, and then had the opportunity to sample most of the Angolan coasts during five years. In 1990, he joined the Muséum National d’Histoire Naturelle in Paris for nearly ten years. He authored or coauthored about 100 scientific papers, in which six new genera and over 175 new species are described, most of them from West Africa and the Northeast Atlantic seamounts. A large, fully illustrated identification guide of the mollusca of southern Spain was also published in 2011 at his initiative. He is a taxonomic editor and member of the scientific committee in the “World Register of Marine Species” database since its beginning in 2009 and its forerunners back in 1995.

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.


1911 ◽  
Vol 2 (2) ◽  
pp. 141-143 ◽  
Author(s):  
F. W. Edwards

In describing the following new species from West Africa, some words of explanation are needed as to the generic names used. In the first place, it is necessary to say that the writer follows Messrs. Dyar and Knab in considering that most of the genera into which Meigen's genus Anopheles has recently been split up are not genera in any accepted sense, and should sink under the old name Anopheles. Provisionally, however, Stethomyia, Chagasia, Calvertina and Bironella are considered as distinct; as none of these genera are African, this will not affect the present paper. Lieut.-Col. A. Alcock, of the London School of Tropical Medicine, has kindly allowed me to see the manuscript of a paper on the classification of Anopheles, which he is about to publish in the Annals and Magazine of Natural History, and I have been able to concur entirely with his views; he recognises only five sub-genera of Anopheles, the sub-genus Nyssorhynchus including all those species with flat scales on thorax and abdomen, i.e., the genera Nyssorhynchus, Cellia and Neocellia of Theobald's Monograph.


Phytotaxa ◽  
2019 ◽  
Vol 405 (2) ◽  
pp. 83
Author(s):  
FILIP VERLOOVE ◽  
JANE BROWNING ◽  
ATTILA MESTERHÁZY

Pycreus rubidomontanus is described as a new species. It is relatively widespread in tropical West Africa where it had been confused up to present with P. atrorubidus, a very rare endemic species from Zambia in south-central Africa that probably is known only from the type gathering. Differences between these and other similar species are discussed and the new species is copiously illustrated.


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 ◽  
2009 ◽  
Vol 2302 (1) ◽  
pp. 19-30 ◽  
Author(s):  
MARK-OLIVER RÖDEL ◽  
JOSEPH DOUMBIA ◽  
ALEX T. JOHNSON ◽  
ANNIKA HILLERS

A new small West African Arthroleptis from the rainforest at the south-eastern tip of Mount Nimba, Liberia is described. The new species differs from all known congeners by the combination of a unique color pattern, a rounded canthal region and a completely smooth skin. The comparison of 592 base pairs of the mitochondrial 16S rRNA from the new species with Arthroleptis samples from all over West Africa, revealed genetic distances between 13.4–17.9%. From the morphologically similar A. aureoli the new species differed by 17.9%. Future research may reveal the necessity to establish a new genus for this peculiar new frog.


Zootaxa ◽  
2008 ◽  
Vol 1732 (1) ◽  
pp. 1
Author(s):  
PIOTR NASKRECKI

A new genus (Brachyamytta n. gen.) and ten new species (Proamytta spinifera n. sp., Amyttosa insectivora n. sp., Anepitacta wrightae n. sp., Amyttopsis bakowskii n. sp., A. palmulicerca n. sp., Xiphidiola hokei n. sp., X. lobaticerca n. sp., Brachyamytta rapidoaestima n. sp., B. mculloughae n. sp., and B. maculipes n. sp.) of West African Meconematinae (Orthoptera: Tettigoniidae) are described. New distribution records for several species are presented, and unusual egg morphology of A. insectivora is discussed.


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. 


1956 ◽  
Vol 47 (3) ◽  
pp. 415-428 ◽  
Author(s):  
J. Bowden

Six new species of stem-boring AGROTIDAE are described from Africa. The new genera, Carelis, Poecopa and Manga are erected to accommodate three of these species; the other three species are described in the genus Busseola.A key to nine genera is given, and also one to separate five extremely similar species, Poeonoma serrata (Hampson), B. fusca (Fuller), B. quadrata, sp. n., B. phaia, sp. n., and B. segeta, sp. n.


Zootaxa ◽  
2011 ◽  
Vol 3011 (1) ◽  
pp. 16 ◽  
Author(s):  
MARK-OLIVER RÖDEL ◽  
N’GORAN GERMAIN KOUAMÉ ◽  
JOSEPH DOUMBIA ◽  
LAURA SANDBERGER

A new small Arthroleptis from western Guinea, West Africa, is described. The new species differs from all known congeners by the combination of small size and a peculiar red dorsal colour with irregular large black and small white, yellow or blue spots. The ventral side is almost uniform greyish black with a few, small white spots. Males lack hypertrophied third fingers, digital and inguinal spines. Fingers and toe tips are slightly enlarged. The new species differs in its colour pattern, smaller size, broader toe and finger tips, the lack of hypertrophied third fingers and digital spines in males, and a mean of 4.7% in the investigated part of the mitochondrial 16S rRNA gene to A. aureoli, which is morphologically and genetically the most similar species. Genetic comparisons of the new species with other available Arthroleptis sequences from species found across Africa revealed genetic distances of 16.0–23.4%.


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