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| Le Calvez, Yolande. |
| Foraminifera were abundant in samples obtained from the Mauritanian coast. Their ecology and geographical location was studied. The genera and species are initially grouped according to the nature of the seabed and its depth. Those found in (1) deep mud at 500-1200 m, (2) muddy sand at 20-340 m, (3) shelly sand at 30-52 m are considered in turn. Group (I) varied according to the station of collection, and were affected by factors in addition to depth, such as the presence of corals. Muddy sand was poor in large individuals and in empty shells, but contained many displaced littoral forms. The very few living forms found in the shelly sand area was surprising; it may reflect the constant agitation of the sand or the small size of individuals, which could... |
| Tipo: Text |
Palavras-chave: Foraminifera; Atlantic Sahara coast; Indexing in process. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2045.pdf |
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| Bacescu, M.; Muradian, Zarui. |
| While only 4 species were known for the family Nannastacidae in West Africa, a recent study has revealed 11 more species - Procampylaspis maurini, P. arguini, P.thalassae, Cumella africana, Schizotrema atlantica, Campylaspis macrophthalma, C. mauritanica, C. bonetti, C. legendrei africana, C. jonesi. Of these, S. atlantica and the last 4 Campylaspis species are new species, and are described. Both male and female adults are described, with explanatory diagrams, and additional observations are included. The species of Campylaspis are incorporated modified form. It is thought that this description completes not only acquaintance with the fauna of the Saharian section of the Atlantic, but also the whole of the Atlantic Ocean. |
| Tipo: Text |
Palavras-chave: Species; Saharian waters; Nannastacidae Crustaceans; Indexing in process. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2046.pdf |
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| Saudray, Yves. |
| The anatomy of the masticatory part of the mandible (the pars molaris) has been studied throughout the moult/intermoult cycle in some peracacarid crustacean species, by scanning electron microscopy. Species examined were: Ligia oceanica, Sphaeroma serratum, Idotea balthica, Talitrus saltator, Hyale nilssoni, Gammarid amphipoda and the mysid Pranus flexuosus. Feeding is known to decline near moulting; this may be because the chewing surfaces become loosened before moulting. Also the surfaces are worn down and useless, and feeding ceases. Very long intermoult periods, as found in old individuals, may thus cause long periods of starvation and this could enhance the symptoms of senescence. |
| Tipo: Text |
Palavras-chave: Peracarid crustaceans; Morphology; Consequences; Indexing in process. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2047.pdf |
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