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| Registros recuperados: 92 | |
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| Lucas, J.A.W.; Holthuis, L.B.. |
| In most Dutch scientific and popular books dealing with Polychaeta, the common amphictenid of the Dutch North Sea shore is indicated with the name Pectinaria belgica (Pallas, 1766). In preparing a revision of the Dutch Polychaeta, one of us (J. A. W. L.) studied the extensive collections of Dutch representatives of the family Amphictenidae present in the Rijksmuseum van Natuurlijke Historie at Leiden and the Zoological Museum at Amsterdam, as well as newly collected material from the Dutch beaches. Comparing these specimens with the account by Fauvel (1927:218225) of the Amphictenidae in the Faune de France, all of the Dutch specimens (with the single exception of a specimen of Pectinaria (Amphictene) auricoma collected in the former Zuiderzee) proved to... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1975 |
URL: http://www.repository.naturalis.nl/record/318353 |
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| Land, J. van der. |
| INTRODUCTION Freshwater microturbellaria of the Netherlands were studied already by De Man (1874). Since then this subject has not received much attention and much faunistic research remains to be done on this large and interesting group. The present paper deals with material from distribution mains for drinking water in the South and the West of the Netherlands and from a canal in the city of Leiden. A new species of Microdalyellia is described. MATERIAL AND METHODS The material was taken from the following samples: Sample no. 150. Leiden, Zoeterwoudse Singel (canal), near Koepoortsbrug. Between vegetation (Glyceria); decaying vegetable debris, mainly Glyceria and Aesculus leaves; 10-15 cm deep; temperature above 50 C (there was no ice in the second half... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1965 |
URL: http://www.repository.naturalis.nl/record/318744 |
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| Hernández-Alcántara, P.; Solís-Weiss, V.. |
| from the continental shelf of the Gulf of California lacking thoracic neuropodial hooks confirmed that a new species, Leitoscoloplos multipapillatus, described herein, is present along with Leitoscoloplos panamensis (Monro. 1933), already recorded there. The new species is closely related to L. panamensis, but can be clearly separated from this, and all other species of Leitoscoloplos, by the unique presence of up to 14 stomach papillae per chaetiger. A third taxon was identified, Leitoscoloplos sp., which is morphologically indistinguishable from L. panamensis, except for the presence of 1-2 stomach papillae on 1-2 segments, a feature that although important was not considered significant enough to erect a new species. Morphometric analyses between the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Leitoscoloplos emendation; Leitoscoloplos multipapillatus sp. nov.; Mexican Pacific; Polychaeta; 42.76. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/474213 |
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| Horst, R.. |
| In December 1915 I published a preliminary account of a rare Polynoidworm, Weberia pustulata, dredged by the Siboga Expedition in a considerable depth in the Malayan Archipelago, at the stations 45 and 314, north off Soembawa 1). The species is especially characterized by the total absence of the eyes as well as of the ventral cirri, except in the first setigerous segment; moreover it lacks the notopodial fascicle, whereas the neuropodial one is represented by four hook-shaped setae. Some time ago Hjalmar Ditlevsen kindly forwarded to me the 1st part of his account of the Annelids of the Danish Ingolf-Expedition 2). In this paper I met with the description of a Polynoid-worm, Bathynoë nodulosus, dredged at great depth in the Atlantic Ocean (south off... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1918 |
URL: http://www.repository.naturalis.nl/record/318427 |
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| Hove, H.A. Ten; Pantus, F.J.A. |
| Ventral thoracic bloodvessel-patterns were defined in a random sample of 152 living specimens of the Apomatus/Protula- complex. Two main patterns and a derived one could be recognized. Eight characters, often used in Serpulid taxonomy and retraceable in preserved material, were determined too: e.g. presence or absence of an operculum and pattern of thoracic setae. These parameters were correlated to the vascular patterns. It was shown that (a) all operculate specimens possess a vascular system of one main pattern; 86% of those closely studied have "Apomatus-setae" at least from setiger 4 onwards; all have radioles with paired rows of compound eyespots. (b) The non-operculate specimens generally possess the other main vascular pattern; the thorax often has... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Polychaeta; Serpulidae; Apomatus; Protula; Taxonomy; Mediterranean; 42.76. |
| Ano: 1985 |
URL: http://www.repository.naturalis.nl/record/319269 |
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| Horst, R.. |
| Among the Annelids of the Leiden Museum I met with two specimens of the genus Aphrodite from the North Atlantic 1), purchased some years ago from the late Mr. G. A. Frank, the well-known dealer in natural objects. They agree with Aphrod. perarmata Roule 2), collected by the "Talisman" in the middle Atlantic (Los Pilones), in the presence of hooked ventral bristles, but cannot be identified with that species. The largest specimen has a length of about 60 mm., whereas it greatest breadth is 30 mm.; the number of its segments amounts to 36. The body has an elongated ellipsoidal shape, with a rather acuminate anal end, while anteriorly it is hardly narrowed. Its ventral side has the appearance of shagreen, being densely beset with small, globular papillae, and... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1917 |
URL: http://www.repository.naturalis.nl/record/318869 |
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| Kappes, H.. |
| Blood-feeding terrestrial leeches of the family Haemadipsidae are a notorious part of the invertebrate diversity in Asian and Australian rain forests. All hitherto published records of terrestrial leeches of Borneo belong to the genus Haemadipsa. Here, a second, poorly known haemadipsid genus is reported from Mount Kinabalu and Crocker Range National Park. The individuals were barcoded and compared to sequences available in GenBank. The results show that the genus Tritetrabdella has representatives in the Indochinese and the Sundaic bioregions. All six specimens from Borneo are from a single new Tritetrabdella lineage, T. kinabaluensis spec. nov. Within the Bornean lineage, two groups differing 4-5% in the COI barcoding sequence were identified. Because 1)... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Annelida; Clitellata; Ecological specialization; Genetic distance; Parasite; Phylogeny; Speciation; Tropical mountains; 42.76; 42.64. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/462900 |
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| Registros recuperados: 92 | |
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