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| Registros recuperados: 631 | |
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| Boelé, F.E.; Hammen, L. van der. |
| In the present paper an analysis is made of the variation in the number of ungues in the claws of Ameronothrus schneideri (Oudemans), an Oribatid mite. This variation is attributable to the regression of the two lateral ungues which are completely suppressed in the course of evolution (they are either present or absent). The laws of this numerical evolution (it is a so-called vertitional evolution) appear to be statistical, and do not determine individual events precisely (as the laws of the particles in quantum mechanics). In a population, each of the claws has a probability of manifestation. The variation of this probability of manifestation shows a very interesting geographical pattern which is as yet difficult to explain. Various correlations of the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1982 |
URL: http://www.repository.naturalis.nl/record/318543 |
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| Markham, J.C.. |
| Material reported is: Asymmetrione clibanarii Markham, 1975 ex Clibanarius sp. in Colombia (new host, new locality) and ex C. tricolor (Gibbes, 1850) in Colombia (new locality); A. desultor Markham, 1975 ex Pagurus brevidactylus (Stimpson, 1862) in Colombia and ex Iridopagurus sp. in Belize (new hosts, new localities); Pseudasymmetrione markhami Adkison & Heard, 1978 ex Pagurus brevidactylus and P. stimpsoni A. Milne Edwards & Bouvier, 1893 in Colombia (new hosts, new locality); Progebiophilus upogebiae (Hay, 1917), new combination, redescribed from North Carolina as a parasite of Upogebia affinis (Say, 1818); Orthione furcata (Richardson, 1904), new combination, ex Upogebia affinis redescribed from North Carolina and Massachusetts (new localities)... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Crustacea Isopoda; Bopyridae; Asymmetrione; Pseudasymmetrione; Pro- gebiophilus; Orthione; Pseudione; Aporobopyrus; Pleurocrypta; Lone; Grapsicepon; Pro- bopyrinella; Probopyrus; Probopyria; Schizobopyrina; Bopyrina; Bopyrella; Ogyridione; Syn- synella; Stegophryxus; Stegias; Parathelges; Diplophryxus; Allodiplophryxus; Eophrixus; Metaphrixus; Hemiarthrus; Parasites; Crustacea Decapoda; Northwestern Atlantic.; 42.74. |
| Ano: 1988 |
URL: http://www.repository.naturalis.nl/record/317608 |
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| Holthuis, L.B.. |
| Op 8 februari 1974 viste de trawler HD 36 voor de oostkust van Engeland (O. van York en N. van Norfolk, ca. 54°N ι°οιΈ), op een diepte van 30 vadem (ca. 55 m) een helder kobalt-blauw Porceleinkrabbetje, Pisidia longicornis (L.), op. De schipper bracht het dier levend naar het Nederlands Instituut voor Onderzoek der Zee (N.I.O.Z.) te Den Helder, waar het direct in een aquarium geplaatst werd. Het dier bleef bijna twee maanden in leven en stierf op 4 april 1974. Het behield zijn blauwe kleur tot het laatst. Jammer genoeg vervelde het dier niet, zodat het niet bekend is welke invloed het vervellen op de kleur heeft. Mej. S. M. van der Baan van het N.I.O.Z. was zo vriendelijk mij op dit merkwaardige exemplaar attent te maken en mij de kleurenfotografie van het... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1975 |
URL: http://www.repository.naturalis.nl/record/317209 |
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| Holthuis, L.B.. |
| Het enorm grote aantal postzegels dat tegenwoordig over de gehele wereld wordt uitgegeven is er de hoofdoorzaak van dat vele Philatelisten zich zijn gaan specialiseren door ófwel slechts zegels van bepaalde landen te verzamelen óf door een z.g. beeldverzameling op te bouwen. De duidelijke tendens die bij de posterijen van vele landen bestaat om hun zegels voor „beeld" Philatelisten aantrekkelijk te maken, draagt er toe bij dat zelfs het bijeenbrengen van een zeer gespecialiseerde beeldverzameling een fascinerende bezigheid is. Het is tegenwoordig reeds vrijwel onmogelijk om zonder grote kosten een representatieve verzameling postzegels met dierenafbeeldingen op te bouwen. Maar een dergelijke collectie tot een kleine diergroep te beperken, en deze dan ook... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1967 |
URL: http://www.repository.naturalis.nl/record/317260 |
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| Holthuis, L.B.. |
| I. INTRODUCTION In the last tens of years more and more attention has been paid to the much neglected and ignored publications written by the eccentric early American naturalist Constantine Samuel Rafinesque. Until now, however, Rafinesque's work in the field of carcinology has received but little attention from modern authors. In 1905 Ortmann (1905, p. 107) pointed out that the name Astacus limosus Rafinesque, 1817, is older than the name Astacus affinis Say, 1817, for the same species, and that consequently the former name has to be used. In the same year Richardson (1905, p. 10) replaced the invalid generic name Ligia Fabricius, 1798, by Ligyda Rafinesque, 1815. M. J. Rathbun (1937, p. 63) substituted the generic name Thelxiope Rafinesque, 1814, for the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1954 |
URL: http://www.repository.naturalis.nl/record/317812 |
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| Bruin, G.H.P. de. |
| INTRODUCTION Penaeid prawns form the basis of flourishing fisheries in South America, East Africa, India, Ceylon, Hong Kong, Indonesia and Australia. In some of these countries surveys are in progress to determine new prawn resources in the sea, since the demand for these crustaceans is unsatisfied. The scientific study of these animals has progressed considerably in most of these areas. Studies in the Indian region can be referred to in the works of Alcock, 1905, 1906; Bate, 1888; De Man, 1888, 1911; Henderson, 1893; Kemp, 1915 and Miers, 1884. Some of these authors have made passing references to the species present in Ceylon waters, but the only special study of the Ceylon species is that of Pearson (1905). Pearson's article, however, refers only to... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1965 |
URL: http://www.repository.naturalis.nl/record/318534 |
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| Suárez-Morales, E.; Londoño-Mesa, M.; Heard, R.W.. |
| Only one species of Tanaidacea, Expina typica, has been hitherto reported as an endosymbiont; it was recovered from the body cavity of deep-sea holothurians. During a survey of the deepsea benthic community in the Florida Straits off the Bahamas, Terebellatanais floridanus, a new genus and species of a tanaidomorphan tanaidacean was recovered at a depth of 545 m from the oral cavity of the terebellid polychaete Biremis blandi. Terebellatanais gen. nov. is tentatively assigned to the family Mirandotanaidae, as it appears to have affinities with Mirandotanais and Pooreotanais but also with Expina. It is distinguished from these genera by a unique combination of characters, including four antennular and antennal articles, a naked endite of the maxillipedal... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Benthic biology; Benthic crustaceans; Symbiosis; Tanaidaceans; Terebellids; 42.74. |
| Ano: 2011 |
URL: http://www.repository.naturalis.nl/record/382570 |
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| Buitendijk, A.M.. |
| Dardanus crassimanus (H. M.-Edw.) Pagurus crassimanus H. Milne-Edwards, 1836, Ann. Sc. Nat., (2), Zool., 6, p. 277; 1837, Hist. nat. Crust., 2, p. 227; 1848, Ann. Sc. Nat., (3), Zool., 10, p. 62. Pagurus setifer de Haan, 1849, Fauna Japonica, Crust., p. 209. Pagurus sculptipes Stimpson, 1858, Proc. Ac. Phil., p. 246; Smiths. Misc. Coll., 1907, 49, P. 205. Pagurus pavimentatus Hilgendorf, 1878, MB. k. Akad. Wiss. Berlin, p. 816, pl. 3, fig. 1—5. Pagurus sculptipes Stimpson, Ortmann, 1892, Zool. Jahrb., Syst, 6, p. 287; 1897, Zool. Jahrb., Syst., 10, p. 275. Pagurus crassimanus H. M.-Edw., Alcock, 1905, Cat. Ind. Dec. Crust., 2, Anomura, p. 162 ("Doubtful species of Clibanarius"). Pagurus pavimentatus Hilgendorf, Lenz, 1910, Voeltzkow's Reise in Ostafrika in... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1937 |
URL: http://www.repository.naturalis.nl/record/318553 |
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| Holthuis, L.B.. |
| The amateur naturalist S. Hailstone, who lived in Hastings, England, was much interested in the Crustacea of his area and made collections of these. At several occasions in 1834 and 1835 he sent observations on interesting specimens, often together with the material, to J. C. Loudon, the editor of "The Magazine of Natural History, and Journal of Zoology, Botany, Mineralogy, Geology, and Meteorology", one of the forerunners of the well known "Annals and Magazine of Natural History". Hailstone often accompanied his notes with requests for identification of the species, which he had either not at all or only tentatively identified. Loudon passed Hailstone's notes and the material (if the latter was available) on to J. O. Westwood, the well known entomologist,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1976 |
URL: http://www.repository.naturalis.nl/record/318300 |
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| Fuller, H.S.. |
| Introduction............... 2 General Remarks.............. 3 Methods of Study............. 6 Acknowledgements............. 9 Family Trombiculidae............. 11 Key to Subfamilies............. 13 Subfamily Trombiculinae Ewing........... 14 Key to Genera.............. 14 Genus Trombicula Berlese........... 15 Genus Eutrombicula Ewing.......... 96 Genus Crotiscus Ewing............ 150 Genus Schöngastia Oudemans.......... 153 Genus Neoschöngastia Ewing........... 176 Genus Euschöngastia Ewing........... 182 Genus Doloisia Oudemans........... 196 Genus Riedlinia Oudemans........... 198 Subfamily Walchiinae Ewing........... 202 Key to Genera.............. 203 Genus Walchia Ewing............ 203 Genus Schöngastieila Hirst........... 210 Genus Gahrliepia... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1952 |
URL: http://www.repository.naturalis.nl/record/317624 |
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| Kuenen, D.J.. |
| Although an abundant literature exists on Artemia salina, there are still interesting facts in the first history of the discovery of this remarkable animal and in the first study of its habits, which seem to be now forgotten. It is generally considered that Rackett (1812) was the first to give a drawing of Artemia salina, accompanying a short paper on the animal, and he himself states this to be the fact. It is, however, not true, as Schlosser's famous original description was illustrated in the french edition (1756). The drawing is an excellent one and much better than the one Rackett gave (fig. 1). As Gautier remarks in an additional note to Schlosser's letter, the first publication in 1755 was not accompanied by a picture. The drawing, which dates from... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1938 |
URL: http://www.repository.naturalis.nl/record/319337 |
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| Nouvel, H.; Holthuis, L.B.. |
| PRÉ FACE Au cours d'études sur la biologie des Processa des mers européennes (1937-1944), le premier auteur fut frappé par les différences singulières que présentaient des spécimens qui, en accord avec l'opinion courante, devaient se rapporter à une même espèce. I1 résolut d'approfondir le côté systématique de la question et rassembla un très important matériel provenant de localités variées. Les pêches les plus considérables ont été effectuées au voisinage de Monaco (de Nice à Menton) avec l'aide précieuse du personnel et des moyens du Musée Océanographique ou de pêcheurs de la région. D'autres récoltes ont été effectuées dans la région de Roscoff et sur les côtes du Finistère par l'auteur lui-même; des exemplaires provenant de la même région lui ont été... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.74. |
| Ano: 1957 |
URL: http://www.repository.naturalis.nl/record/317772 |
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| Registros recuperados: 631 | |
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