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| Registros recuperados: 119 | |
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| Roon, J.M. van. |
| In 1939 J. M. van Roon and J. J. ter Pelkwijk published some data on two specimens of Orthragoriscus mola (L.) stranded on the Dutch coast. Measurements of bones and muscles of the jaw were given on account of the functional treatise concerning the mechanism of the jaw of Orthragoriscus given by Van Dobben (1935), based upon one specimen that differed in many ways from both individuals we dissected. In the following years, we got three more specimens and an examination of the jaw muscles proved them to be fully agreeing with the two fishes described before. It seems worth while to publish corresponding data and measurements. Specimen C, a female, stranded December 12, 1939 near Kamperduin in the neighbourhood of Schoorl. This fish was more oblong than... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.81. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/319100 |
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| Beets, C.. |
| Material: one well-preserved entire shell and another one, of which the ventral valve was destroyed for the greater part for the sake of chemical analysis in the „Rijkswegenbouw-Laboratorium”. Dimensions: the ventral valve of the holotype (fig. 9) has a length of 48.2 mm from the posterior or cardinal to the anterior border; the dorsal valve (fig. 8) is 45.2 mm long. The dorsal valve of the paratype (fig. 16) has a length of 53.8 mm. The breadth of the type is 49 mm, the thickness 32.6 mm. The habitus is more rhynchonelloid than terebratuloid, as e. g. in Gryphus Cubensis (Pourtalès) or Abyssothyris Thomson, 1927, or in some cretaceous groups (cf. Sahni, 1925). The shell is exactly bilaterally symmetrical, the ventral (pedicle-) valve being somewhat larger... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505606 |
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| Ruge-Baenziger, E.. |
| L'éditeur de ce journal vient de recevoir de Mme Ruge, née Baenziger, une des plus anciennes amies de Mme Weber, la lettre suivante, qu’il est heureux de pouvoir faire imprimer ci-dessous: Ma chère Anna, Quatre-vingt-dix ans! Voilà pour la première fois dans notre amitié de longues années que je constate une indiscrétion de votre part; vous à qui l’on pouvait à bon droit reprocher un excès de discrétion tant sur le domaine de la pensée que sur celui de l’action. Et cependant, ces quatrevingt-dix ans vous ont été imposés par les puissances au dessus de nous. Certes, les années écoulées depuis la mort de votre mari vous ont placé devant line bien lourde tâche, mais d’autant plus lumineuse me semble votre vie avant ce douloureux événement. Que de multiples... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526348 |
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| Holthuis, L.B.; Lam, H.J.. |
| The Talaud Islands are forming part of the Malay Archipelago, being situated north of Celebes and the Moluccas, south of Mindanao and east of the Sangihe group, between 3°45’ and 5°35’ N. lat. and 126°32’ and 127°10’ E. long. The main group consists of three larger islands, viz. Karakelong, Salebaboe and Kaboeroeang. The Nenoesa islands, a group formed by the small islands of Garete, Karaton, Merampi, Mengkopoe, Intata, Kakelotan and Maroh are situated northeast of the main group, including also Miangas (Palmas), an islet about 65 miles north of Karakelong, near Mindanao. |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/525051 |
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| Beets, C.. |
| 1) Examining the Semper-collection of mollusca from the Philippines kept in the Leyden Geological Museum, I met with some generic undetermined specimens of a representative of the genus Atopodonta (from Tertiary strata only rarely recorded), all belonging to one and the same species, which appeared never to have been described before. This genus 1) is known from the Eocene of the Paris basin represented by two species, viz. the typespecies Atopodonta conformis (Deshayes), 1860 [Deshayes,. Anim. s. vert., I, p. 419, plate 28, fig. 14—16 (“Venus”); Cossmann, Catal. ill., I, 1886, p. (98— 100) 99, plate 6, fig. 3—6 (excl. plate 8, fig. 3—4)] and A. tapina Cossmann, 1886 (l.c., p. 100, plate 6, fig. 7—9). These are the only European species. In 1941 I was in a... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505961 |
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| Brongersma, L.D.. |
| Smith (1937, pp. 215—216, fig. 1) described and figured the different types of scales of the lower surface of the toes in Lygosoma and allied genera. Although several of these types may be found within one genus, they are useful as additional characters to distinguish certain species or groups of species from each other. When studying a number of IndoAustralian scincid lizards, I noticed that the arrangement of the scales on the dorsal surface of the digits shows differences too, which it may be worth while to include in the descriptions of the species as they provide additional characters. The arrangement of the scales seems to be fairly constant within the species. In some cases slight variations were found, but in a series of over one hundred specimens... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.82. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318872 |
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| Florschütz, F.; Wassink, E.C.. |
| Die Frage nach der Art, wie die nordwesteuropäische Calluna-Heide entstanden ist, und wann dies geschah, wurde in den letzten Jahren erneut diskutiert. In der vorliegenden Mitteilung wird versucht, auf Grund der Resultate pollenanalytischer Untersuchungen kleiner Moore im Heidegebiet der niederländischen Provinz Drenthe einen Beitrag zur Lösung dieses Problems zu geben. Der von uns begangene Weg wurde bereits 1931 von OVERBECK (1) *) vorgeschlagen. Dieser Autor brachte damals auch schon ein Beispiel derartiger Untersuchungen in der Bearbeitung kleiner Moore auf der Vegesacker Geest in der Nähe von Bremen: des Moores bei Lilkendey und des Garlstedter Moores. Die Erscheinung, welche hier wichtig ist, ist folgende: In den Diagrammen der Ablagerungen beider... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535108 |
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| Regteren Altena, C.O. van. |
| Part I of this monograph has been published in volume 10 of this Journal, pp. 241—320, 1938. Preparing this second part I met with the help and assistance from many persons and institutes again, for which I express my most cordial thanks here. The figures illustrating this paper have been drawn once more by Mr. L. P. Pouderoyen, while the „Zoologisch Insulinde Fonds” supplied the cost of these illustrations. |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505875 |
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| Varossieau, W.W.. |
| Summarizing, it appears that Eucommia has the greatest number of characters in common with the Urticales. This is shown by the similarity of the inflorescences as well as by the unisexual flowers and the dioecy. In both groups the pistil consists of 2 connate carpels and the ovary is usually 1-celled by abortion, while the stigmata are generally papillate. Further general points of relation with the Urticales are the originally spiral phyllotaxis, which becomes later on pseudo-distichous, simple vessel perforations, libriform with bordered pits, unicellular hairs and the occurrence of calciumcarbonate and silica as well as of latex elements. Yet, it seems difficult to indicate any particular family in the Urticales to which Eucommia should be most related.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/525811 |
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| Bremekamp, C.E.B.. |
| Among the most aberrant types of pollen grains found in plants which have been referred to the family Acanthaceae, are those of the genera Meyenia N. ab E. and Thomandersia Baill. Although the pollen grains were described by LINDAU under different names, those of the first genus as cogwheel-shaped and those of the latter as lenticular, they are really very similar: in both genera they are depressed globose, provided with five or more meridional grooves extending from the equator to about halfway the poles, and without clearly circumscribed germ pores. The difference between the two kinds of grains lies in the presence or absence of ribs: in Meyenia the grooves are borne on the top of ribs separated from each other by shallow depressions, whereas in... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/534928 |
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| Vervoort, W.. |
| In the course of 1941 I studied a great number of Hydroida from various northern localities present in the collections of the Zoological Museum at Amsterdam. Most of these collections were made by trawlers from IJmuiden and for the greater part presented to the Museum by Mr. F. P. Vermeulen. They are from localities which are accurately known. Moreover, several samples of Hydroida are present in those collections, which were taken in the neighbourhood of Iceland, either by trawlers from IJmuiden or by Dr. J. Metzelaar and Dr. H. Engel. They were all sent to Dr. P. L. Kramp in 1938, who examined them for his list of Hydroida in "The Zoology of Iceland", vol. 2, pt. 5a. Most of these samples returned identified, but some bottles were returned unnamed from... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.72. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318941 |
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| Hooijer, D.A.. |
| While studying the literature on recent and fossil Hippopotami it became evident to me that a number of authors ascribe a third milk incisor to Hippopotamus amphibius L. Consequently this species, as regards the milk dentition, should be "hexaprotodont" like the Pliocene and Pleistocene species of Hippopotamus from the Siwaliks of India, Burma and Java; and like H. pantanellii Joleaud (1920, p. 18) from Casino near Siena in Italy (vide Pantanelli, 1879, p. 318, pl. IV fig. 5). According to Major (1896, p. 978) young specimens of H. lemerlei Grandidier from Madagascar occasionally are hexaprotodont too. When dealing with Hippopotamus amphibius L. Blainville (1847, p. 32) made the following remarks: "Dans le très-jeune âge, il est certain qu'il y a trois... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.84. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/317978 |
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| Jong, C. de. |
| When rearranging a part of the collections of Orthoptera in the Rijksmuseum van Natuurlijke Historie at Leiden I found a number of specimens belonging to this tribus, which by former authors is considered as a separate subfamily with the name Eumegalodontinae (Kirby, 1906, p. 289; Caudell, 1927, p. 30). With Karny I think it justified to let it retain its place as a tribe of the Copiphorinae. The representatives of this group are of such a remarkable shape that they can easily be recognized among the other Copiphorinae by their relatively big head and strangely shaped prothorax, which bears strongly spined lateral processes on the disc. The species under consideration can be divided into two groups, in the one of these the specimens possess a number of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.83. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/319358 |
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| Hellebrekers, W.Ph.J.. |
| In 1910 the Rijksmuseum van Natuurlijke Historie at Leiden obtained the important egg collection from Surinam, brought together by Messrs. F. P. and A. P. Penard. Owing to different circumstances this collection as a whole was not studied again, and, with the exception of some notes in papers by Schönwetter (1932, 1933) nothing has been published upon the material since it came into the Museum. In 1941 and 1942 I had the opportunity to rearrange the oölogical collections of the Leiden Museum, and during this work the Penard material was incorporated into the general collection. During my study of the material I became convinced that it is worth while to publish more detailed data than those contained in the works of the Penard's. This especially holds as... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.83. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318020 |
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| Deelder, C.L.. |
| In 1941 and 1942 I studied the rather extensive collection of Erotylidae in the Rijksmuseum van Natuurlijke Historie, the results of this study are given in the following pages. The collection is chiefly composed of material which during a long series of years gradually was acquired by the Museum, though a great deal formerly was a part of private collections which later as a whole became the property of the Museum and then the specimens were incorporated into the general collection. The most important of these private collections is that of Dr. H. J. Veth, other important collections are those of Dr. D. MacGillavry, and of Mr. J. J. de Vos tot Nederveen Cappel, the latter collection recently presented to the Museum. Moreover the Museum possesses certain... |
| Tipo: Article / Letter to the editor |
Palavras-chave: 42.75. |
| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/318060 |
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| Schilder, F.A.. |
| The Cypraeacea of the Cosijn collection and from the localities M1—M 262 of the Mijnwezen collection were already discussed by me in a previous paper 3). Recently some new material was sent to me by Dr. C. O. van Regteren Altena; these new shells partly derive from the localities M 263—M 347 of the Mijnwezen collection 4), partly they belong to the Dubois collection of the Rijksmuseum van Natuurlijke Historie at Leiden. I thought it useful to include in the present study all the Cypraeacea of the Cosijn and Mijnwezen collections, whether already dealt with before or not, as well as the shells from Sonde in the collection K. Martin (R. G. M. L.) 5), the Cypraeacea of the Dubois collection, and some other specimens examined in Dutch collections. Thus the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/505674 |
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| Kylin, Harald. |
| In einem jüngst erschienenen Aufsatz schreibt Du Rietz (1941 S. 6): ”Pylaiella rupincola (Aresch.) Kylin ist mit Conferva litoralis L. identisch. Kein Grund liegt vor anzunehman‘, dass Linné die auf Ascophyllum an der schwedischen Westküste wachsende Pylaiella litoralis sensu Kylin gekannt und in seine Conferva litoralis miteinbezogen hat. Der Name Pylaiella litoralis (L.) Kjellm. muss deshalb für P. rupincola (Aresch.) Kylin beibehalten werden. Für P. litoralis sensu Kylin schlägt Verf. den neuen Namen Pylaiella Kylinii vor.“ Bei meinen Untersuchungen über Pylaiella litoralis (1933 und 1937) war ich zu der Auffassung gekommen, dass diese Art in sich zwei verschiedene Arten enthielt. Für die eine behielt ich den Namen P. litoralis (L.) Kjellm., die andere... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/526304 |
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| Zaneveld, J.S.. |
| As far as I know, only three papers are dealing with Charophyta of the Netherlands West Indies. In 1858, in “Monatsbericht der königlichen Akademie der Wissenschaften, Berlin”, BRAUN records two species from Paramaribo, viz. Nitella microcarpa A. BR. and Chara hydropitys REICHENB. ap. MOESSL. These species are also enumerated in the “Fragmente einer Monographie der Characeen” (BRAUN & NORDSTEDT, 1882), in which another species is recorded from Curaçao, viz. Chara gymnopus A. Br. f. curassavica A. BR., now to be named Chara zeylanica Willd. f. curassavica (A. BR.) H. et J. GROVES. The third paper is that of H. and J. GROVES in URBAN’s Symbolae Antillanae (1911), in which the last-named species is once more recorded. In 1930 Mr P. WAGENAAR HUMMELINCK... |
| Tipo: Article / Letter to the editor |
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| Ano: 1942 |
URL: http://www.repository.naturalis.nl/record/535212 |
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| Registros recuperados: 119 | |
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