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| Registros recuperados: 62 | |
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| Waard-Pouw, G. van; Soest, R.W.M. van. |
| The present bibliography on pelagic Tunicates has been compiled over a period of 4 years, mainly by the first author. It is meant, not as an official publication, but as a working aid for students of pelagic Tunicates. It comprises about 1300-1400 different titles of books and articles. For obvious reasons the mere listing of all those titles in alphabetical order would be impractical for specialized demands. Splitting this list in as many subheadings as possible in a way like the Zoological Record would be ideal. However, many articles and books are difficult to place under one heading; the same titles would have to be mentioned under a number of different headings. With as many headings as possible this would mean a multiplication of the 1300-1400 titles... |
| Tipo: Article / Letter to the editor |
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| Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/506352 |
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| Soest, R.W.M. van. |
| This final part of the Coelenterate type catalogue lists 274 nominal types (183 Gorgonacea, 9 Actiniaria and 82 Scleractinia). Six not previously depicted types are represented by photographic illustrations of their habit. Furthermore lists are provided of schizotypes, i.e. fragments of types housed in other musea donated at some time to the Zoological Museum of Amsterdam, and of missing types, i.e. types, which should be in the ZMA but were found missing in a recent survey of the collections. |
| Tipo: Article / Letter to the editor |
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| Ano: 1979 |
URL: http://www.repository.naturalis.nl/record/505117 |
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| Soest, R.W.M. van. |
| Although sponges are by no means unimportant organisms, in biomass and diversity, of the Curaçao coral reefs, very few scientific studies have been undertaken in this area involving sponges. To date, apart from taxonomie studies by Arndt (1927) and myself (Van Soest, 1978, 1980), only the boring sponges received attention (e.g. studies of De Groot, in progress). The main reason for this, no doubt, is the confused taxonomy of West Indian sponges. While taxonomie studies are in full progress (but are necessarily slow), it is now already possible to present sufficient data to allow certain identification of the more common reef forms by non-taxonomists for ecological or other purposes. It is one of the objects of the present paper to provide these data; they... |
| Tipo: Article / Letter to the editor |
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| Ano: 1981 |
URL: http://www.repository.naturalis.nl/record/506324 |
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| Soest, R.W.M. van; Beglinger, E.J.. |
| Recent (1998) collecting off the coasts of Oman in the course of the EC-MAS3 funded ‘Symbiosponge’ project yielded three species of the genus Biemna Gray, 1867 (Demospongiae, Poecilosclerida, Mycalina, Desmacellidae) not previously known from the area. One of these appeared to be new to science and is described as Biemna omanensis n.sp.. Its distinguishing features comprise the possession of oxea megascleres, which is of rare occurrence in Biemna, and a full complement of microscleres including microxeas, sigmas, commata, all of which are divisible in two non-overlapping size categories, and raphides. One of the other two species conformed to an earlier described species Biemna ciocalyptoides Burton, 1959, which was discovered to be a junior synonym of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Porifera; Oman; Biemna; New species. |
| Ano: 2002 |
URL: http://www.repository.naturalis.nl/record/505076 |
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| Soest, R.W.M. van; Zea, S.. |
| Monanthus ciocalyptoides n. sp. is described from two localities in the West Indian region, viz. the Saba Bank (17°25’N 63°33’W) and the Colombian Caribbean (11°20’N 74°09’W). The genus was hitherto known from South African waters only, by the type-species M. plumosus Kirkpatrick (1903). The systematic status of the new species and the genus as sublithistid members of the order Halichondrida is discussed. |
| Tipo: Article / Letter to the editor |
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| Ano: 1986 |
URL: http://www.repository.naturalis.nl/record/505517 |
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| Soest, R.W.M. van. |
| Based on material from all oceans the Salp genera Salpa, Pegea and Ritteriella are revised. Particularly the study of the number of muscle fibres has shown that Salpa maxima var. tuberculata, the subspecies Pegea confoederala bicaudata and the generally synonymized species Ritteriella retracta are valid taxa, which are given the status of species. The existence of two groups of individuals differing biometrically within the species Salpa aspera and Ritteriella retracta is reported. |
| Tipo: Article / Letter to the editor |
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| Ano: 1974 |
URL: http://www.repository.naturalis.nl/record/505029 |
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| Soest, R.W.M. van. |
| A sponge collection dredged by Dr. P. WAGENAAR HUMMELINCK in the vicinity of Barbados (West Indies) contained a Cinachyralike specimen bearing large and conspicuous acanthoxea. This find induced the present author to re-examine all specimens with similar spiculation reported so far. A review of the literature revealed that a total of three such specimens has been described in two different genera, all as separate species, viz. Acanthotetilla hemisphaerica Burton, 1959, Acanthocinachyra enigmatica Levi, 1964, and Acanthocinachyra seychellensis Thomas, 1973. Both genera are reported to differ in the presence (genus Acanthocinachyra) or absence (genus Acanthotetilla) of sigmaspire microscleres. In view of the close similarity of the two genera it seemed wise... |
| Tipo: Article / Letter to the editor |
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| Ano: 1977 |
URL: http://www.repository.naturalis.nl/record/506047 |
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| Soest, R.W.M. van; Hooper, J.N.A.; Beglinger, E.; Erpenbeck, D.. |
| Comparison of Sollasella digitata Lendenfeld, 1888, up until the present assigned to its own family Sollasellidae Lendenfeld, 1887 in the order Hadromerida, and Raspailopsis cervicornis Burton, 1959, assigned to Raspailiidae Nardo, 1833 in the order Poecilosclerida, leads to the conclusion that both should be considered congeneric and are best assigned to a single genus Sollasella. This conclusion is based on examination of habit and skeletal characters of the type material of S. digitata and both type and freshly collected material of S. cervicornis. The conclusion is strengthened by the discovery of a new species, Sollasella moretonensis n.sp. collected in North Australia (primarily in the northeastern coast, but also an isolated record from the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sponges; Classification; Sollasellidae; Raspailiidae; Sollasella; Raspailopsis; Australia; Oman; 42.72. |
| Ano: 2006 |
URL: http://www.repository.naturalis.nl/record/214536 |
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| Erpenbeck, D.; Hooper, J.N.A.; List-Armitage, S.E.; Degnan, B.M.; Wörheide, G.; Soest, R.W.M. van. |
| This is the second part of a revision and re-classification of the demosponge family Sollasellidae, and an example of a successful use of combined morphological and molecular data. Sollasella had been a poorly known, long forgotten taxon, placed incertae sedis in the order Hadromerida in the last major revision of the demosponges. It has recently been suggested to belong to Raspailiidae in the order Poecilosclerida due to striking morphological similarities. The present analysis verified this re-classification using molecular markers. Comparing 28S rDNA fragments of Sollasella cervicornis, a newly described species S. moretonensis and a representative set of raspailiid and hadromerid samples. In our analyses Sollasella clearly clusters inside the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Sponges; Classification; Raspailiidae; Sollasella; Raspailopsis; 28S rDNA; Molecular systematics; 42.72. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/226474 |
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| Soest, R.W.M. van; Sass, Daniel B.. |
| Dixon Hill Lighthouse Cave, about 800 m (0.5 miles) inshore on San Salvador Island, Bahamas, was found to hold populations of three sponge species new to science, viz. Pellina penicilliformis n. sp., Prosuberites geracei n. sp., and Cinachyra subterranea n. sp. The new species are described and figured, and compared with Caribbean congeneric species. The geological history of the cave is described and its implication for ideas on speciation rates in sponges is discussed. |
| Tipo: Article / Letter to the editor |
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| Ano: 1981 |
URL: http://www.repository.naturalis.nl/record/504363 |
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| Soest, R.W.M. van; Stentoft, N.. |
| Deep-water sponges dredged up in two locations off the west coast of Barbados are systematically described. A total of 69 species is recorded, among which 16 are new to science, viz. Pachymatisma geodiformis, Asteropus syringiferus, Cinachyra arenosa, Theonella atlantica. Corallistes paratypus, Corallistes tubulatus, Scleritoderma cyanea, Spongosorites silquariae, ?Halichondria ruetzleri, Leucophloeus lewisi, Acanthella vaceleti, Bubaris flagelliformis, Biemna oxeata, Phlyctaenopora halichondrioides, Echinochalina melana, Strongylophora stoneae. Of each species illustrations of the habit and/or the skeletal architecture and spiculation are provided. A review of West Indian deep water sponges is given in the form of tables of records of deep water sponges... |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/506087 |
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| Soest, R.W.M. van; Stone, S.M.; Boury-Esnault, N.; Rützler, K.. |
| A list is provided in which extant and lost specimens of the Duchassaing and Michelotti collection of West Indian Sponges (published 1864) are discussed. The numerous types and other specimens are housed in two institutions, viz. the Museo e Istituto di Zoologia Sistemática dell’Universitá di Torino, Italy, and the Zoölogisch Museum Amsterdam; fragments of the Torino specimens are kept in the British Museum (Natural History), London, the National Museum of Natural History, Washington, and the Muséum National d’Histoire Naturelle, Paris. Of all extant specimens and fragments the whereabouts, collection numbers, references to recent redescriptions and the identity in modern context are given. With a few exceptions, species and genera not represented by... |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/505563 |
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| Soest, R.W.M. van. |
| A specimen of the sclerosponge Merlia lacking a basal skeleton of calcareous chambers (corresponding to the description of Merlia deficiens Vacelet, 1980) is reported from the underside of the coral Agaricia at a depth of 10 m on the reef of Curaçao, Netherlands Antilles. Its spiculation is identical to Merlia normani Kirkpatrick, 1908 specimens with the basal skeleton, from which it is concluded that M. deficiens and M. normani are probably conspecific. The phylogenetic significance of a sclerosponge with an unstable calcareous skeleton is discussed and in accordance with Vacelet (in press) it is postulated that sclerosponges are polyphyletic. It is suggested that sclerosponge skeletons are an ancestral character for a large part of the Demospongiae. The... |
| Tipo: Article / Letter to the editor |
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| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/504574 |
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| Registros recuperados: 62 | |
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