|
|
|
| Registros recuperados: 22 | |
|
| |
|
| |
|
|
| Litvaitis, M.K.; Curini-Galletti, M.C.; Martens, P.M.; Kocher, T.D.. |
| The current classification system for the Monocelididae which is based on the character "presence or absence of an accessory prostatoid organ" divides the family into two subfamilies, namely the Minoninae and the Monocelididinae. However, other characters relating to the structure of the male copulatory bulb and to karyotypes do not support this division. Monocelidid male copulatory bulbs can be either of the simplex or the duplex-type, and if this character is mapped onto the current classification, then both subfamilies contain species with either type of copulatory bulb. We therefore decided to construct an independent phylogeny for the Monocelididae using nucleotide-sequence data of the gene coding for the 26/28S rDNA. Distance and parsimony-based... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taxonomy; Monocelididae. |
| Ano: 1996 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3015 |
| |
|
|
| Curini-Galletti, M.C.; Martens, P.M.. |
| Four new species of the genus <i>Archilina</i> Ax are described from tropical areas: <i>A. euglypta</i> n. sp. and <i>A. batiae</i> n. sp. from Red Sea; <i>A. stylifera</i> n. sp. and <i>A. opisthobursa</i> n. sp. from the Carribean (Puerto Rico). The karyotypes of all species are given: three of them have karyotypes derived from the basic set of the family Monocelididae. A sister-species relationship is proposed for the Carribean species based on the backwater position of the bursa. Because of this feature, the genus diagnosis is modified. The two Carribean species are considered as a separate evolutionary line within the genus <i>Archilina</i> |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: New species Archilina ASW; Caribbean. |
| Ano: 1996 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2955 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Martens, P.M.. |
| During several intensive collecting campaigns in 1982, 1983 and 1984 at the "Station de Recherches Sous-Marines et Océanographiques" (STARESO) at Calvi (Corsica) about 200 species of marine micro-Turbellaria have been observed. Most of the collecting sites are infralittoral, down to 40 m depth and more, the majority of them with sandy bottoms and some with algae. In general species diversity was high but population densities were low, only a few individuals of each species having been found.In the present paper, three new species of the genus <i>Duplominona</i> (Monocelididae, Minoninae) from infralittoral habitats are described: <i>D. paucispina</i> sp. n., <i>D. corsicana</i> sp. n. and <i>D.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: New species Duplominona MED; France; Corsica. |
| Ano: 1984 |
URL: http://www.vliz.be/imisdocs/publications/286525.pdf |
| |
|
| |
|
|
| Martens, P.M.; Schockaert, E.R.. |
| Recent data and opinions on meiofaunal ecology are briefly reviewed; and from scattered data, the place of turbellarians in the meiobenthic community is discussed. Turbellarian diversity is of the same magnitude higher in sandy habitats than in muddy bottoms. In sand, turbellarian diversity is of the same magnitude as that of other important meiofaunal taxa, while densities range between 7-25% of the total meiofauna. Mean individual turbellarian dry weight seems to be four times that of nematodes and in sandy habitats turbellarian biomass may be equal to or exceed that of nematodes. Most turbellarian species may be considered as predators and in this respect may take the place occupied by macrofaunal species in muddy sediments. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ecology; Fauna; Literature reviews; Meiobenthos; Turbellaria [Flatworms]. |
| Ano: 1986 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3222 |
| |
|
| |
|
|
| Martens, P.M.; Curini-Galletti, M.C.. |
| The family Archimonocelididae Meixner, 1938 has been revised. The family contains two subfamilies, each comprising two genera: the Archimonocelididae with <i>Archimonocelis</i> Meixner, 1938 and <i>Meidiama</i> Marcus, 1946, and the Calviriinae subfam. nov. with <i>Asilomaria</i> Karling, 1966 and <i>Calviria</i> gen. nov. with 20, 2, 1 and 3 species, respectively, 13 of which are new to science.The type species of the family is redescribed. Material of all the Archimonocelididae genera has been studied and supplementary remarks are made on some known species. The karyotype of 14 species is described.<i>Archimonocelis</i> has a cosmopolitan distribution while <i>Meidiama</i> is... |
| Tipo: Info:eu-repo/semantics/article |
|
| Ano: 1993 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2719 |
| |
|
|
| Martens, P.M.; Curini-Galletti, M.C.. |
| <i>Monocelis longistyla</i> sp.n. from littoral sandy habitats of the Mediterranean is described. The karyotypes of <i>Monocelis fusca, M. lineata</i> and <i>M. longistyla</i> sp.n. were analysed. A basic karyotype for the genus Monocelis is postulated and its probable evolution from the basic karyotype of the family Monocelididae and within the genus is discussed. The karyotype of <i>M. longistyla</i> seems to have evolved from the basic Monocelis karyotype by pericentric inversions. However from the analysis of the karyotype in different populations of <i>M. lineata</i> the species appeared not to be homogeneous (European populations versus the Canadian population). |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal morphology; Karyology; New species; Monocelis longistyla; MED. |
| Ano: 1987 |
URL: http://www.vliz.be/imisdocs/publications/241041.pdf |
| |
|
|
| Martens, P.M.. |
| Three different extraction methods for Turbellaria were compared, 2 of which use living material. The first method is based on sea-water ice treatment (Uhlig-method), the second employs decantation of narcotized fauna (MgCl<sub>2</sub>-method). The third method is the Barnett-method, performed on preserved material. Three series of 12 samples each were analysed quantitatively. Turbellaria were counted and identified to the order level. For the turbellarian population as a whole, the numbers of individuals extracted alive (Uhlig- or MgCl<sub>2</sub>-method) was less than 50% of the number extracted from the preserved samples (Barnett-method). Differences between Uhlig-method and MgCl<sub>2</sub>-method were not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Turbellaria [Flatworms]. |
| Ano: 1984 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3332 |
| |
|
| |
|
|
| Martens, P.M.; Schockaert, E.R.. |
| Sand dwelling Turbellaria from the Delta of the Rivers Rhine, Meuse and Scheldt have been investigated. Thirty-eight samples taken from littoral and sublittoral stations in the Grevelingen, Eastern and Western Scheldt have been analysed. Thirty-three species were recorded (Acoela were not considered); twenty-four of them are new for the area and seven new species are described. Density and diversity of Turbellaria were higher in the Eastern Scheldt than in the Western Scheldt or in the Lake Grevelingen. A maximum density of 82 ind./100 cm³ was noted. A tentative calculation on relative abundance of the representatives of the different Turbellaria orders is established. Proseriata seem to be dominant in the localities studied. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Meiobenthos Taxonomy Turbellaria [Flatworms] ANE; Netherlands; Delta Area. |
| Ano: 1981 |
URL: http://www.vliz.be/imisdocs/publications/260405.pdf |
| |
|
|
| Curini-Galletti, M.C.; Martens, P.M.; Puccinelli, I.. |
| Mechanisms of karyotype evolution in the Monocelididae (<i>Turbellaria Proseriata</i>). Within the Proseriata (Turbellaria: Seriata), the family Monocelididae displays several interesting patterns of chromosomal evolution. A basic set of n = 3 -made up or one large metacentric, one medium-sized metacentric and one small clearly heterobrachial chromosome -has been detected. It is widely distributed in species pertaining to both the subfamilies in which the Monocelididae are subdivided. From this basic set, other complements -either with n = 3 or n > 3 -would be originated.Several karyological mechanisms or common occurrence within the family (translocations, small chromosome rearrangements involving the centromere, genome growth) have been... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Monocelididae. |
| Ano: 1985 |
URL: http://www.vliz.be/imisdocs/publications/276721.pdf |
| |
|
| |
| Registros recuperados: 22 | |
|
|
|
