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| Registros recuperados: 51 | |
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| Büttikofer, J.. |
| In his Histoire naturelle des oiseaux d’Afrique, Vol. IV, p. 84, pl. 189, Levaillant described and figured, under the name of »Traquet Commandeur”, a species of Bird, the type of which made part of the old Cabinet Temminck and at present contained in the Collections of the Leyden Museum. Our bird in question agrees very well with the colored plate given by Levaillant, with the exception of the shoulderpatch, which in the bird is white with a well pronounced rosy tinge, the white feathers being broadly tipped with rosy, especially so near the edge of the wing. The same is the case in Levaillant’s plate, only is the rose color on the tips to the feathers much exaggerated. |
| Tipo: Article / Letter to the editor |
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| Ano: 1892 |
URL: http://www.repository.naturalis.nl/record/509112 |
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| Büttikofer, J.. |
| Forehead, crown and nape black, a broad eyebrow of ashy white, beginning at the base of the nasal groove and extending over the eye to the sides of the neck; before and below the eye a narrow edging of black feathers, earcoverts blackish, upper surface of body dark olive-brown, somewhat rufescent on the rump and still more so on the upper tail-coverts, quills sooty brown, primaries narrowly, secondaries very broadly edged with the color of the rump, greater wing-coverts broadly edged with the color of the back, the lesser entirely of that color, under wing-coverts dark fulvous brown. Tail dark rufous brown, strongly waved under certain lights. Chin, throat, breast and abdomen white, sides of neck and chest ashy gray, sides of body and under tail-coverts... |
| Tipo: Article / Letter to the editor |
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| Ano: 1889 |
URL: http://www.repository.naturalis.nl/record/508715 |
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| Büttikofer, J.. |
| In 1883 a collection of birds from the Tenimber or Timor-Laut group of Islands was presented to our Museum by Mr. Riedel, Resident at Amboina. This collection contains 35 skins, representing 31 species, one of which ( Erythromyias Riedeli) is new to science, while two other (Ardea picata and Fregata minor) are for the first time brought from that interesting locality. Unfortunately the collection was much damaged by humidity, some of the labels were wasted entirely, while in most of the others the sexe, date and particularities about the locality were not mentioned. It is however quite certain that all the presented skins really come from Timor-Laut, and have been collected by the hunters of Mr. Riedel in 1882. Our Museum is very much indebted to Mr.... |
| Tipo: Article / Letter to the editor |
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| Ano: 1886 |
URL: http://www.repository.naturalis.nl/record/508734 |
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| Büttikofer, J.. |
| Mr. F. X. Stampfli, whom I left in Liberia at the end of May 1887, repatriated last summer and brought home an important number of Birds skins, most of which are collected at three stations: Owen’s Grove, Mount Olive and Gallilee Mountain on the Farmington River. Only relatively few have been obtained at our old station at Schieffelinsville (March 1888) and at Paynesville on the Messurado River (April 1888). The Farmington River is a very important confluent of the Junk River, having its general direction about parallel with the Du Queah River and joining its water with that of the main river half a mile above the mouth of the latter, and seven or eight miles lower than the Du Queah. Going up the Farmington River by canoe, both banks are flat and covered... |
| Tipo: Article / Letter to the editor |
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| Ano: 1889 |
URL: http://www.repository.naturalis.nl/record/509230 |
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| Büttikofer, J.. |
| While working out the ornithological results of the Dutch expedition to Central Borneo, I had to decide which name to bestow upon the Bornean Crested Fire-back, generally known as Euplocamus nobilis Scl., but afterwards united with E. ignitus Lath. by Elliot (Ibis 1878, p. 414), and lately also by Ogilvie Grant in his Catalogue of the Game Birds in the British Museum. A comparison of the Bornean specimens in the Leyden Museum with our very interesting other representatives of the Genus ¹) convinced me that we have to acknowledge not only two, as Elliot (l. c.) proposes, but four welldefined species, as will be fully explained hereafter in the key to the species. |
| Tipo: Article / Letter to the editor |
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| Ano: 1896 |
URL: http://www.repository.naturalis.nl/record/508672 |
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| Büttikofer, J.. |
| Amongst a small number of birds, recently presented to the Leyden Museum by Mr. J. Bensbach, of late Resident at Ternate, I found a very interesting specimen of the Great Black Cockatoo from the Arfak Mountains, New Guinea, a specimen which I consider to be immature on account of the great extent of yellow on the black plumage and of the horny white color of the point of the bill and the front of the lower mandible. Unfortunately we know very little about the immature dress of this species, no nestling having been described as yet, and what is stated to characterize the young bird is the whitish tip of the upper and the horny white front of the lower mandible, as well as the more or less developed yellow cross-bars or vermiculations on the under wingand... |
| Tipo: Article / Letter to the editor |
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| Ano: 1895 |
URL: http://www.repository.naturalis.nl/record/509148 |
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| Büttikofer, J.. |
| Vor Kurzem erhielt unser Museum eine Anzahl Paradiesvögel vom Goenong Tobi, Nordwest-Neuguinea, worunter sich ausser einem alten Männchen von Amblyornis inornata Schleg. und einem andern von Pteridophora Alberti Meyer auch eine in der Färbung ganz abweichende Craspedophora magnifica (V.) und vier Exemplare von Parotia Carolae Meyer befanden. Das Exemplar von Craspedophora magnifica erinnert in seinem eigentümlichen Färbuugszustande an Albinismus, mit dem Unterschiede jedoch, dass in diesem Falle das Gefieder nicht weiss, sondern grau erscheint. Die Struktur der Federn in den verschiedenen Partieen ist durchaus dieselbe wie beim normalen Vogel, die Farbe aber so verändert, dass man zu glauben versucht ist, dass der Vogel längere Zeit im Spiritus gelegen... |
| Tipo: Article / Letter to the editor |
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| Ano: 1895 |
URL: http://www.repository.naturalis.nl/record/508560 |
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| Büttikofer, J.. |
| After having spent nine months’ time in our Museum, and thoroughly prepared and fit out to carry on my own investigations, Mr. A. T. Demery, the son of my Liberian huntsman Jackson Demery, left for his mother-country in August last year. Immediately after his arrival he went at work and has sent since, amongst many other objects, two small collections of birds from different parts of the district of Grand Cape Mount in Western Liberia. Many of the birds have been collected in the vicinity of Robertsport, others on the Johny Creek (a confluent of the Fisherman Lake), and others again at Jarjee, a Golah Town some days travel in the Interior up the Mahfa River. As, besides the two new Zosterops, several of the 87 or 88 collected species are new for Liberia,... |
| Tipo: Article / Letter to the editor |
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| Ano: 1890 |
URL: http://www.repository.naturalis.nl/record/508859 |
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| Büttikofer, J.. |
| A few days ago I had the chance to examine a peculiarly colored Pheasant, which after dissection proved to be a hermaphrodite, having a feebly though distinctly developed testicle on the left, and an ovary on the right side. The exterior of the bird shows a curious mixture of the plumage of male and female. Head and neck resemble more the female than the male, but are strongly banded across with metallic green, the surroundings of the eyes are nearly entirely feathered and the red, naked parts much reduced, the two bunches of lengthened feathers on the sides of the hind-head absent, but replaced by a great number of lengthened feathers on the hind neck; the neck is separated all round from the body by a feebly developed collar like is the case in the... |
| Tipo: Article / Letter to the editor |
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| Ano: 1896 |
URL: http://www.repository.naturalis.nl/record/508880 |
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| Büttikofer, J.. |
| Last month the Leyden Museum received a small number of birds, presented by Dr. H. ten Kate, who bad collected them during his recent voyage through the above mentioned islands. Though most of the 29 species are already mentioned in the list given by Wallace, P. Z. S. 1863, p. 484, I do not hesitate to give an enumeration of ten Kate’s collection, the more as it has given me the chance of describing a new species of Tropidorhynchus, , years ago discovered by Forsten and sent over since by Mr. van Lansberge, Prof. Max Weber and now contained in ten Kate’s recent collection. |
| Tipo: Article / Letter to the editor |
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| Ano: 1891 |
URL: http://www.repository.naturalis.nl/record/508630 |
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| Büttikofer, J.. |
| As I told in my previous paper on Liberian Ornithology ¹), Mr. Stampfli and I left for Liberia at the end of October 1886, and arrived at Monrovia, after short stays at Hamburg, Madeira, Teneriffa, Gran Canaria and the Senegal, on the 26th of November. The next day I proceeded in an open sailing boat to Grand Cape Mount to get the servants, which were already hired for me by Mr. Watson, the Liberian Superintendent at Robertsport. From this latter place I visited some of my former stations on the Fisherman Lake, the Japaca Creek and on the Mahfa River.²) Everywhere I was very kindly received by the natives, who had not yet forgotten me and were much enjoyed to see me again. About medio December I returned with three Yey-boys and my old Liberian huntsman... |
| Tipo: Article / Letter to the editor |
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| Ano: 1888 |
URL: http://www.repository.naturalis.nl/record/509295 |
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| Büttikofer, J.. |
| While looking through the species of the genus Pachycephala in the Leyden Museum, I met with two species which will prove to be new to science. They were collected in 1878, in the district of Macassar, South Celebes, by the well-known Dutch Naturalist Teysmann, and they will form the second and third species hitherto with certainty stated from Celebes, the first being P. sulfureiventer (Walden) from North Celebes. |
| Tipo: Article / Letter to the editor |
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| Ano: 1893 |
URL: http://www.repository.naturalis.nl/record/508985 |
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| Büttikofer, J.. |
| Amongst a collection of birds, collected in the Timor Group of Islands and presented to the Museum in 1882 by Mr. van Lansberge, the late Governor General of the Netherlands’ Indies, I found a hitherto undescribed species of Pericrocotus which I propose to name after the Donator who has done very much for natural science and especially for the benefit of the Leyden Museum. Having lately (Notes 1886, p. 67) been obliged to suppress the species Ardea Lansbergei Schl., it is quite a satisfaction to me to bestow this specific name upon another species. In a next number of the »Notes” I hope to give a detailed list of the very important collection which contains, amongst other rarities, aforesaid new species. |
| Tipo: Article / Letter to the editor |
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| Ano: 1886 |
URL: http://www.repository.naturalis.nl/record/509387 |
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| Büttikofer, J.. |
| I am sorry to say that amongst the new generic names, occurring in my recent paper on the genus Pycnonotus and some allied Genera (N. L. M. XVII), Centrolophus and Gymnocrotaphus are already preoccupied among the Fishes, the first being used by Lacépède, the second by Günther. I propose, therefore, to substitute the name Centrolophus (pp. 226 and 230) by Bostrycholophus (curlcrest) on account of the upward-bent longer crest-feathers, and the name Gymnocrotaphus (pp. 227 and 245) by Bonapartia, Bonaparte being the author of the single species of this peculiar genus. |
| Tipo: Article / Letter to the editor |
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| Ano: 1896 |
URL: http://www.repository.naturalis.nl/record/509107 |
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| Büttikofer, J.. |
| Repeated and successful attempts have been made within the last 10 years to increase our knowledge of the Avifauna of Sumatra, and though much is still left undone, the time cannot be very far, that we shall have a tolerably good idea of it and its relation to that of the Continent and the great neighbouring Islands of Java and Borneo. The first intelligence of Sumatran Birds is given by Sir Stamford Raffles in the Transactions of the Linnean Society, Vol. XIII, p. 277-331, with an appendix (pp. 339, 340) in 1822. This very important account mentions 168 species, which were collected at Bencoolen (S. W. Sumatra), the residence of Raffles’, and its vicinity. More than 50 of these species were considered to he new. — About 10 years later (1830) his widow... |
| Tipo: Article / Letter to the editor |
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| Ano: 1887 |
URL: http://www.repository.naturalis.nl/record/509140 |
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| Büttikofer, J.. |
| When revising the genus Siphia and allied genera in the Leyden Museum, I fell upon the fact that our typical males and female of Stoparola concreta (Müller) from the Highlands of Padang (Sumatra) are in striking contrast with the other species of the genus Stoparola, which on the whole is characterized by the sea-green general color, the triangular, flat shape of the bill, the short tarsi and the uniformity in color between male and female. Their strong resemblance with Siphia Everetti, which I brought home from Borneo, led me to the comparison with the description of Siphia cyanea from the mountains of Tenasserim and Perak, a very rare bird which is not represented in the Leyden Museum. This comparison absolutely convinced me that our Sumatran birds are... |
| Tipo: Article / Letter to the editor |
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| Ano: 1897 |
URL: http://www.repository.naturalis.nl/record/509366 |
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| Büttikofer, J.. |
| A few days ago the Leyden Museum was presented by Dr. Kerbert, the Director of the Zoological Garden at Amsterdam, with a specimen of Crypturus which had been sent alive from Argentinia and died after having been kept in the Garden during the last winter. The specimen, an adult female with worn off tips of the wings and somewhat damaged on the hind neck, appears to belong to an undescribed species, which I propose to name |
| Tipo: Article / Letter to the editor |
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| Ano: 1896 |
URL: http://www.repository.naturalis.nl/record/509090 |
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| Registros recuperados: 51 | |
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