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| Registros recuperados: 92 | |
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| Gates, G.E.. |
| Pheretima long has been known to have more species than any other oligochaete genus though no one has yet been in a position to determine how many of them have any real claim to recognition even as old-fashioned museum taxa. Intrageneric relationships are unknown primarily because somatic anatomy was derogated in the classical system of the Oligochaeta. Accordingly, if one wishes to learn whether any specimen at hand is of a known or undescribed taxon it is necessary, first of all, to check through appropriate portions of a 16-page table in Michaelsen's monograph (1900) where species are grouped according to location of the spermathecal pores. If identification is impossible, as often must be the case, a laborious search through the literature of the last... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1961 |
URL: http://www.repository.naturalis.nl/record/318942 |
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| Augener, H.. |
| Fam. ARICIIDAE. Aricia foetida Clap. Fundort: 73° N. 25° 0. 220 fm. 19.VII. 1878. -W. B. 1878/79. — M. L. Von diesem Fundort liegen zwei hinten mehr oder weniger unvollständige Exemplare vor, von denen das kürzere mit noch 95 Segmenten ca. 33 mm lang ist. Ich bemerke über dieses Tier folgendes. Die Kiemen beginnen am neunten Borstensegment. Die Thoraxregion umfasst ca. 25 Borstensegmente, vom ca. 26. Borstensegment an haben die Ventralparapodien die für die abdominale Region charakteristische Form. Bauchpapillen finden sich am 18. bis 26. Borstensegment, an dem letzten dieser Segmente nur noch in der Einzahl jederseits, im Maximum zu 10—12 jederseits. Zwischen den Parapodasten jeder Körperseite ist ein intermediärer Cirrus sicher vorhanden, ich konnte sein... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1934 |
URL: http://www.repository.naturalis.nl/record/318471 |
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| Horst, R.. |
| Though our knowledge of the Sigalioninae much increased in the last years thanks to the assiduous investigations of Mc Intosh, Pruvot et Racovitza 1), Darboux, Willey a. o., yet there still reigns a good deal of confusion about the exact diagnosis of the genera. Sthenelais simplex Ehl. 2) f. i. has rightly been ranged by Augener among the genus Leanira 3); Leanira Giardi Darb.4) according to the investigations of Marenzeller belongs to Sthenelais 5) and Thalenessa stylolepis Willey 6) will prove, as I presume, to be a species of Sigalion. Partly this may be ascribed to the circumstance, that only a few of the investigators could dispose of a large material and therefore must borrow their knowledge from the often inadequate descriptions of others; but it... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1916 |
URL: http://www.repository.naturalis.nl/record/319324 |
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| Land, J. van der. |
| CONTENTS 1 Introduction.................. 4 1.1 Plan .................. 4 1.2 Material and methods.............. 5 1.3 Acknowledgements............... 6 2 Systematics.................. 8 2.1 Historical introduction.............. 8 2.2 Phylum Priapulida............... 9 2.2.1 Diagnosis................ 10 2.2.2 Classification............... 10 2.2.3 Definition of terms............. 12 2.2.4 Basic adaptive features............. 13 2.2.5 General features.............. 13 2.2.6 Systematic notes.............. 25 2.3 Key to the taxa................ 26 2.4 Survey of the taxa............... 29 Priapulidae................. 29 Priapulopsis ................ 30 Priapulus................. 51 Acanthopriapulus............... 60 Halicryptus ................ 62... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1970 |
URL: http://www.repository.naturalis.nl/record/317612 |
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| Jacobs, R.P.W.M.; Dubbers, F.A.A.. |
| INTRODUCTION During a preliminary investigation in 1977 and the beginning of 1978 on the benthic infauna of the seagrass communities formed by Zostera marina L. and Zostera noltii Hornem, in The Netherlands, the polychaete Malacoceros fuliginosus (Claparède, 1869) was found. In Europe this spionid has been recorded earlier from Sweden (Hannerz, 1956), Denmark (Rasmussen, 1956, 1973), Germany (Westheide, 1966; Giere, 1968), England (Day, 1934), France (Bellan, 1964; Guérin, 1975) and The Netherlands (Wolff, 1973). In The Netherlands only two specimens had been found, viz. one in the mouth of the Oosterschelde and another one in the North Sea. During our investigation many animals were collected, mainly in Lake Grevelingen, a stagnant salt-water lake in the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1980 |
URL: http://www.repository.naturalis.nl/record/317265 |
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| Lax, P.; Rondan Dueñas, J.C.; Franco-Ponce, J.; Gardenal, C.N.; Doucet, M.E.. |
| Potato cyst nematodes, G. rostochiensis and G. pallida, are the most economically important nematode pests of potatoes worldwide and are subject to strict quarantine regulations in many countries. Globodera ellingtonae was recently described from Oregon (USA), with its host-plant in the field being still unknown. Roots of Andean potatoes from the North of Argentina have been found attacked by this nematode, providing further evidence that this is a potato cyst nematode species, along with G. pallida and G. rostochiensis. New information about morphological, biological and molecular aspects of G. ellingtonae is provided for diagnostic purposes. The Argentine population showed morphological differences from specimens from Oregon; therefore, new diagnostic... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Andean potato; Argentina; Diagnosis; Hsp90 gene; Morphology; Potato cyst nematode; 42.76; 42.64. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/506790 |
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| Loof, P.A.A.. |
| CONTENTS Introduction .................. 3 List of samples with species found............. 4 Some ecological remarks............... 5 Systematic part.................. 7 Subclass Secernentes ............... 7 Panagrolaimidae................ 7 Subclass Adenophori ............... 8 Plectidae.................. 8 Leptolaimidae................. 12 Monhysteridae................. 12 Alaimidae.................. 13 Oncholaimidae................. 13 Tripylidae.................. 15 Onchulidae.................. 20 Ironidae .................. 22 Mononchidae................. 22 Mononchulidae................. 23 Bathyodontidae ................ 24 Dorylaimidae................. 24 Nygolaimidae...... ............ 38 Aporcelaimidae ...... .......... 38 Belondiridae ......... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1973 |
URL: http://www.repository.naturalis.nl/record/317708 |
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| Horst, R.. |
| 1. Amphinomidae and Aphroditidae. Professor Max Weber, during a short stay in South Africa in 1894, made a small collection of Annelids, which he kindly handed me over for examination. As I found among them some species, which for the first time are mentioned from this interesting region, where the fauna'sof the Atlantic and the Indo-Pacific meet each other, it will not be without interest to publish a short note about them. Euphrosyne capensis Kinb. 1). (— polybranchia Schm.) 2). At Seapoint, near low watermark, 8 specimens were collected, the largest of which has only a length of 16 mm., whereas its breadth measures 6 mm.; the number of the segments of this specimen amounts to 45. Eurythoë complanata (Pall). This species, already mentioned by Potts from... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1917 |
URL: http://www.repository.naturalis.nl/record/318068 |
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| Horst, R.. |
| Among the collection of Annelida of the Leyden Museum I met with some specimens of the interesting genus Ammotrypane, collected in the Malay Archipelago, Our knowledge of this genus of Opheliïdae is rather scanty. However as, according to the investigations of Grube 1) and Kükenthal 2), the number of segments and branchiae in each species are fixed, I presume that the species, mentioned in this paper, hitherto have not been described. The only species mentioned till now from that part of the Indo-Pacific are Ammotr. remigera Ehl. and — polycheles Gr. 3), also found in the neighbourhood of the Aroe-isles, like three of our species. Ammotrypane kampeni n. sp. Fig. 1. A specimen, measuring in length 35 mm. and provided with 58 pairs of parapodia, could not be... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1919 |
URL: http://www.repository.naturalis.nl/record/318108 |
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| Horst, R.. |
| Deze worm, het eerst waargenomen in den mond van de Thames, de Liffey en andere rivieren in Engeland, werd door dr. G. Romijn op verschillende plaatsen in N. Holland verzameld: in het Noordhollandsch kanaal bij Schoorldam en in kanaal P. (een verbindingskanaal tusschen het Noordzee-kanaal en de Haarlemmer ringvaart). Terwijl de exemplaren van Engeland 4 à 6 mm. lang worden, bereiken de onze slechts een lengte van 2 mm. Het zijn primitieve Sabelliden (Fam. Amphicorinidae) met 5 onvertakte kieuwen aan weerszijde, waarvan alleen de middelste een bloedvat vertoonen. Zij bestaan uit 12 segmenten: 1 borstelloos kopsegment met een paar oogen, 8 thoracaal segmenten en 3 abdominaal segmenten. De haakvormige borstels van thoracaal en abdominaal segmenten verschillen... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1921 |
URL: http://www.repository.naturalis.nl/record/319317 |
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| Delogu, V.; Curini-Galletti, M.. |
| Seven new Parotoplana species (Proseriata: Otoplanidae) from the Mediterranean, belonging to the P. jondelii complex, are described. They are characterized by the presence of numerous (14-22) copulatory spines. These are characteristically broad, and arranged in a girdle around the distal portion of the ejaculatory duct. In most species, dorsal and ventral spines are distinctly different from the rest of the spines of the girdle. This morphology of the copulatory spines is apomorphic for the genus Parotoplana, and supports a close relationship among these species. The new species (P. axi sp. n., P. crassispina sp. n., P. carthagoensis sp. n., P. gracilispina sp. n., P. ichnusae sp. n., P. obtusispina sp. n., P. pulchrispina sp. n.) are distinguished by... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Biodiversity; Meiofauna; New species; Parotoplana; Taxonomy; Vicariance; 42.76. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/316129 |
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| Righi, G.. |
| The genus Meroscolex Černosvitov, 1934, comprised only two species: M. guianicus Černosvitov and M. longissimus Černosvitov, both known only from French Guiana (Černosvitov, 1934: 56; 1935: 29). A third species, from Suriname, is described in the present paper. Meroscolex hoogmoedi n. sp. Material: Suriname, valley of Coeroeni River, approximately 3°2o'N 57°2o'W, leg. Dienst Bodemkartering Suriname, 24/25 June 1967 (2 clitellate specimens: holotype, coll. no. 5946, paratype, coll. no. 5947). — Suriname, Post Tigrie, New River, 3°2o'N 57°3o'W, leg. M.S. Hoogmoed, 28/29 June 1968 (5 clitellate specimens, 4 without posterior end, and 1 large aclitellate specimen, coll. no. 6055). Material in Rijksmuseum van Natuurlijke Historie, Leiden. The type specimens... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1969 |
URL: http://www.repository.naturalis.nl/record/318993 |
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| Velde, G. van der. |
| INTRODUCTION During an excursion to Norway organized by the Department of Systematic Zoology of the Rijksuniversiteit of Leiden in August 1973, I had the opportunity to make some observations on Turbellarians of salt-marshes and rocky shores of the Trondheimsfjord (63o 37' N 9° 43' Ε) and the Stjörnfjord (63o 47' Ν 10° 7' Ε), a fjord connected with the Trondheimsfjord. MATERIAL AND METHODS The greater triclad flatworms were mainly collected by turning stones on the salt-marshes and rocky shores. On the salt-marshes soil samples were taken. Each sample covered an area of 25 cm2 and was 3 cm thick. For obtaining the animals the soil samples were put in a jar filled with sea water. Lack of oxygen, due to decay of the vegetable matter, and the light of a lamp... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1976 |
URL: http://www.repository.naturalis.nl/record/318579 |
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| Horst, R.. |
| In eene verzameling Anneliden, door den Heer G. J. van Oordt hoofdzakelijk in Zeeland bijeengebracht en aan 's Rijks Museum van Natuurlijke Historie geschonken, trof ik twee soorten aan, die nieuw zijn voor onze Fauna nl. Mageiona papillicornis Müll, en Spirorbis borealis Daud., terwijl de Anneliden, vroeger bestemd als Scoloplos armiger Müll, mij bleken tot de varieteit mülleri Rathke fe behooren. Scoloplos armiger Müll. var. mülleri Rathke. (Aricia mülleri Rathke). Rathke, Nova Acta Ac. Caes. Leop. Car. Nat. Curios. Dl. XX, 1843, p. 176, pl. VIII, fig. 9—15; De St. Joseph, Ann. Sc. nat. (S. 8), Dl. V, 1898, p. 356, pl. XX, fig. 167. Door de onderzoekingen van St. Joseph en Fauvel 1) is gebleken, dat Scoloplos armiger Müll., gekenmerkt door het bezit van... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1919 |
URL: http://www.repository.naturalis.nl/record/319406 |
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| Augener, H.. |
| In der vorliegenden Arbeit ist die Untersuchung eines sehr umfangreichen Polychaeten-Materials niedergelegt, das mir von Herrn Prof. Dr. E. D. van Oort in Leiden und Herrn Prof. Dr. L. F. de Beaufort in Amsterdam zur Bearbeitung übergeben wurde. Von diesem Material ist der dem Museum in Leiden gehörende Anteil viel grösser als der Anteil aus dem Museum in Amsterdam. Ich habe die Untersuchung über die grosse Menge unbestimmten Materials aus dem Leidener Museum mit dem bisher durchaus unbearbeiteten Material aus dem Amsterdamer Museum vereinigt in einem ersten, grossen Abschnitt unter dem Zeichen Römisch I. In einem zweiten, kleinen Abschnitt unter dem Zeichen Römisch II. ist die Nachuntersuchung über zahlreiche dem Leidener Museum gehörende... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.76. |
| Ano: 1933 |
URL: http://www.repository.naturalis.nl/record/318655 |
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| Registros recuperados: 92 | |
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