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| Registros recuperados: 12 | |
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| Broodbakker, Nico W.. |
| Seven new species and one new subspecies of the genus Strandesia s.l. Stuhlmann, 1888, are described. Four species reared by Sars (1901) from dried mud from Brazil are redescribed. The genera Acanthocypris Claus, 1892, and Neocypris Sars, 1901, are considered as subgenera of Strandesia s.l. Two species from Europe, formerly attributed to Cypricercus Sars, 1895, are redescribed. One of these, C. obliquus (Brady, 1868) was used as type-species for the erection of a new tribe and of the genus Bradleycypris by McKenzie (1982), but proves to be a member of the subgenus Neocypris of Strandesia s.l. Therefore Bradleycypris becomes a subjective synonym of Neocypris. On the other hand, Cypricercus fuscatus (Jurine, 1820) effectively shows the characters used by... |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/503876 |
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| Broodbakker, Nico W.. |
| The distribution and ecology of two species of Strandesia, s. longula Broodbakker, 1983, and S. stocki Broodbakker, 1983, are discussed. Both species are very common in Haiti, and S. longula is also common in the Bahamas. Both are found on some of the Lesser Antilles, and therefore they are assumed to have a much wider distribution. The two species are mostly found in fresh water, but they can tolerate chlorinities up to 3500 mg/l. No preferences concerning other factors could be found. Both species live in wells, pools, and in the underflow of running waters. Differences in carapace length of different populations could not be correlated with any environmental factor measured. These length differences do not appear to be determined genetically. It is most... |
| Tipo: Article / Letter to the editor |
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| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/504223 |
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| Broodbakker, Nico W.. |
| This project was originally planned to take place in the summer of 1985. Due to unforeseen circumstances it could not in fact be carried out until the autumn of 1986. This meant that some aspects of the project had to be changed because of seasonal influences. One major drawback was the absence of any flooded rice fields, because the fieldwork was done after the growing and harvesting of the rice. It was therefore impossible to collect any ostracods from ricefields in south west Honshu. Since the rice fields are one of the major ostracod habitats in Japan, this meant a dramatic decrease of the number of possible collecting sites. |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/506365 |
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| Broodbakker, Nico W.. |
| Populations of three species of the genus Heterocypris: H. margaritae Margalef, 1961, H. antillensis Broodbakker, 1982, and H. punctata Keyser, 1975, sampled in the Caribbean region are studied. (1) An attempt is made to correlate differences in mean carapace length between samples from different islands and within intra-insular samples, with environmental factors. (2) Differences in the ecology of the three species are determined. (3) The distribution of the three species is discussed. (4) Related species are compared. Differences in carapace length appear not to be related with genetic differences, but to be caused by environmental influences. In H. margaritae correlation was found between carapace length and size (as area) of habitat, and in H.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/504618 |
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| Broodbakker, Nico W.. |
| A list of species that are, or probably have to be, assigned to the genus Tanycypris is given. A redescription is given of T. meridana (Furtos, 1936), a species originally described as Herpetocypris, from Yucatan (Mexico). This species was also found in Puerto Rico, two of the Lesser Antilles and two islands off the Venezuelan coast. The species is compared with other species of Tanycypris, with species of the subgenus Acanthocypris of Strandesia s.l., as defined by Broodbakker (1983), and especially with Strandesia venezolana Broodbakker, 1983, which seems to be intermediate between Tanycypris and Acanthocypris. Furthermore, a supplementary diagnosis of the genus Tanycypris is given. Tanycypris appears to be a widespread tropical genus, represented by few... |
| Tipo: Article / Letter to the editor |
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| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/504580 |
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| Broodbakker, Nico W.. |
| A worldwide list of species that have to be assigned to the genus Hemicypris is given. H. exigua n. sp. and H. barbadensis n. sp. are described. A redescription is given of H. reticulata (Klie, 1930), a species from Paraguay, which was also encountered in the Antillean islands. Descriptions of chaetotaxy are made according to the system of Broodbakker & Danielopol (1982). The morphology of the limbs of the three species is similar to that of the species of the genus Heterocypris encountered in the West Indies. Like in the genus Heterocypris, a considerable amount of variation in mean carapace length is found. The relative length of some setae seems to be fairly constant within, and characteristic of, each species. Some remarks are made on the ecology... |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/504194 |
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| Broodbakker, Nico W.. |
| A redescription is provided of Heterocypris margaritae Margalef, 1961 (= H. similis Klie, 1933). H. antillensis n. sp., a species closely related to H. margaritae, is described. Taxonomic remarks are made on H. punctata Keyser, 1975, a species from Florida, which also inhabits part of the Caribbean islands and is related to both other species. Descriptions of chaetotaxy were made according to the system of Broodbakker & Danielopol (1982) and form an example of the use of this system. Carapace length seems to be a very variable character in this genus and must be used as a taxonomic character with great caution. The structure of the hemipenis seems to be a very valuable taxonomic character, as are the furca and maxillular palp and to a lesser degree the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/504472 |
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| Broodbakker, Nico W.. |
| Nine new species, two new genera, and two new subgenera of the subfamily Candoninae are described, viz.: a species of the genus Candonopsis, C. hummelincki, probably epigean, with a wide distribution; two new species of the genus Pseudocandona, both elongate in shape, Ps. geratsi, interstitial, in several states of Venezuela, and Ps. antilliana, epigean, widespread throughout the Antillean Islands, including Cuba, Jamaica and Hispaniola; and two species of Pseudocandona with less elongate, reticulated carapaces and a straight dorsal margin, viz. Ps. caribbeana, interstitial, in brooks and small rivers in Jamaica and Venezuela, and Ps. cubensis, troglobitic, found in cave waters in Cuba. A new hypogean genus of Candoninae, Caribecandona, is described, and... |
| Tipo: Article / Letter to the editor |
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| Ano: 1983 |
URL: http://www.repository.naturalis.nl/record/504088 |
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| Broodbakker, Nico W.; Danielopol, Dan L.. |
| The need for better and more systematic descriptions of the chaetotaxy (especially data concerning the shape, structure and pattern of distribution of the setae) is emphasized. The historical developments of studies in chaetotaxy are reviewed. Two basic types of cuticular processes can be recognized: setae and pseudochaetae. The former have sensorial and mechanical functions, the latter only a mechanical function. A special type of seta is the aesthetasc or the chemosensorial receptor. Using the shape and structure of the setae, most of them can be classified in the following categories: simple, plumed, serrate and chelate. The importance of developmental studies for the establishment of homologies in chaetotaxy is stressed. Examples of functional... |
| Tipo: Article / Letter to the editor |
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| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/504017 |
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| Meisch, Claude; Broodbakker, Nico W.. |
| Les auteurs ont examiné une collection de 38 échantillons d’Ostracodes d’eau douce récoltés par le Prof. J. H. Stock sur les Iles Canaries de 1985 à 1987. Seules quelques espèces ont été trouvées. Cypridopsis lanzarotensis fut décrite par Mallwitz (1984) de l’île de Lanzarote (îles Canaries); c’est la première fois qu’elle est signalée depuis sa découverte. Dans le présent travail, l’espèce est transférée dans le genre Sarscypridopsis McKenzie 1977. Les espèces suivantes sont signalées pour la première fois des Iles Canaries: Plesiocypridopsis newtoni (Brady & Robertson, 1870); Cypretta seurati Gauthier, 1929 ainsi que les deux espèces cosmopolites Cypridopsis vidua (O. F. Müller, 1776) et Heterocypris incongruens (Ramdohr, 1808). La taxonomie,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1990 |
URL: http://www.repository.naturalis.nl/record/504742 |
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| Broodbakker, Nico W.. |
| The distribution of freshwater Ostracoda in the islands of the West Indies and part of the Venezuelan mainland is discussed. The ostracod fauna of wells and epigean habitats is compared. Some species, e.g. Cypretta spp. are found significantly more often in wells, others are only found in epigean habitats, e.g. Hemicypris spp. and Cypris subglobosa. Some species are found significantly more often in epigean habitats, e.g. Stenocypris major, others seem to have no preference, e.g. Physocypria affinis and Cypridopsis spp. Joint occurrence of Ostracoda and other faunal groups in wells is studied, especially for hadziid amphipods, which are supposed to predate on small crustaceans. There may be some influence of the presence of hadziid amphipods on the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1984 |
URL: http://www.repository.naturalis.nl/record/503967 |
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| Broodbakker, Nico W.. |
| During this project about 150 groundwater habitats were sampled on a number of islands in the South Pacific. The main habitats sampled were: wells, springs, caves, beaches and streams. Groundwater fauna was only found on two islands. On Easter Island we found a new species belonging to the Isopoda (Crustacea), living in marine groundwater interstitia. On Tongatapu a new species of groundwater Amphipoda (Crustacea) was found in Anahulu Cave. Fragments which possibly belong to the same species were found in some wells on the island. Many samples have not yet been sorted out. Therefore it is possible that more groundwater species will be found, particularly in the beach samples from the Cook Islands, and in the spring, cave, well, and beach samples of the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/506348 |
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| Registros recuperados: 12 | |
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