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  • 2000-2004  (5)
  • 1990-1994  (3)
  • 1
    Publication Date: 2024-01-12
    Description: \xe2\x80\x98Marconia\xe2\x80\x99 hamiltoni s.l. is known from two discrete mountainous areas in Malawi, i.e. the (southern) Mt. Mulanje complex, and the (more northern) Zomba Plateau s.l. These uplands are separated by about 65 km of lower lying land with different types of vegetation and climate. Material from these two regions may be distinguished as separate species, the southern populations having comparatively small and broad shells with some apertural dentition (\xe2\x80\x98M\xe2\x80\x99. hamiltoni, lectotype designated), while the northern populations have noticeably larger and more slender shells with a more reduced apertural dentition (\xe2\x80\x98M\xe2\x80\x99. malavensis). Discussion of the type localities for both taxa shows that these are either localized in an unlikely place (\xe2\x80\x98M\xe2\x80\x99. hamiltoni) or unclear (\xe2\x80\x98M\xe2\x80\x99. malavensis). Radula and genital anatomy of \xe2\x80\x98M\xe2\x80\x99. hamiltoni are described and depicted for the first time. Both species are ovoviviparous, a rarely reported phenomenon in the Streptaxidae. The genitalia are markedly different from what is known in various streptaxid genera with which these species may be or have been classified. In spite of the confused streptaxid taxonomy, a new genus, Austromarconia, is introduced with Ennea hamiltoni as type species.
    Keywords: Mollusca ; Gastropoda ; Pulmonata ; Streptaxidae ; Marconia ; Austromarconia gen. nov. ; taxonomy ; nomenclature ; Central Africa ; Malawi.
    Repository Name: National Museum of Natural History, Netherlands
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  • 2
    Publication Date: 2024-01-12
    Description: A drawing of two Indian elephants, signed "P. Camper f. 10 Sept. 1786", in red chalk or crayon, was found in the archives of the Rijksmuseum van Natuurlijke Historie in a manuscript by T.G. van Lidth de Jeude (1788-1863). Van Lidth de Jeude, professor at Utrecht university, obviously intended to use it as an illustration in his projected manual of the mammals in Dutch. The drawing is almost completely identical to an unsigned drawing in the Artis library, one of a series of three.\nThe Leiden drawing is traced back to H. Schlegel, director of the Leiden museum 1858-1884, who most probably obtained the Van Lidth de Jeude papers upon his death. Van Lidth de Jeude is likely to have acquired the Camper drawing from G.J. van Klinkenberg (1768/69-1841), who in turn must have got it from the custodian of the Stadholder\'s collection, when he (Prince William V) was already in exile in England. The Camper drawings in the Artis library are also traced back to Van Lidth de Jeude and Van Klinkenberg (via the second Vrolik sale in 1868, and the auction of "Dr. P...." in 1887; "Dr . P...." very probably is Dr. F.P.L. Pollen, 1842-1886, who in the years 1862-1866 materially contributed to the zoological exploration of Madagascar). It is argued that because of the presence of the signature, the Leiden drawing is the original and the Amsterdam drawing a copy, either done by Camper himself or somebody else. Some drawings in the Rijksprentenkabinet (Amsterdam), presented in 1940 by the surgeon Dr. J.C.J. Bierens de Haan (1867-1951) may be preliminary sketches for the red crayon pictures here discussed.
    Keywords: Proboscidea ; Indian Elephant ; Petrus Camper ; history of zoology ; history of zoological gardens ; Rijksmuseum van Natuurlijke Historie
    Repository Name: National Museum of Natural History, Netherlands
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  • 3
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    In:  Zoologische Verhandelingen vol. 334, pp. 7-20
    Publication Date: 2024-01-12
    Description: This contribution is an attempt to sketch the life and works of Dr Jacob van der Land, curator of worms and chief marine biologist of the National Museum of Natural History, on the occasion of his official retirement. Born in 1935, Jacob van der Land read biology at Leiden University (1958-1964), where he obtained his Ph.D. in 1970 on a treatise on the Priapulida under the supervision of Prof. Dr L.D. Brongersma. In 1964 he was appointed curator of worms in the museum. Later on he took over leadership of the invertebrate section (excluding insects) of the museum and was also placed in charge of all marine research. Initially, Van der Land organized field trips for biology students of Leiden University to Scandinavia, who were able to sample seagoing studies from a research vessel. From the early seventies on he conducted a number of smaller and larger marine expeditions mainly in the tropics (particularly in SE. Asia). His talent for organisation, management and leadership in the field was outstanding and led to the complete success of these undertakings. In an interim period in the museum\xe2\x80\x99s history he also participated in the general management. Subsequently his talents were severely tested when in 1996-1998 he was asked to supervise the almost traumatic move of the museum from the old premises in the Raamsteeg to the purpose- built new complex in the Darwinweg elsewhere in Leiden. Apart from having made a significant impact on the study of various groups of worms and worm-like animals (Turbellaria, Priapulida, Oligochaeta, Tardigrada, Vestimentifera), Van der Land also greatly influenced marine research in the Netherlands by participating in scientific management on a national scale. A list of his publications until early 2000 is attached.
    Keywords: Vermes ; Turbellaria ; Priapulida ; Oligochaeta ; Tardigrada ; Vestimentifera ; biography ; bibliography ; history of biology ; marine biology ; Rijksmuseum van Natuurlijke Historie/Leiden ; National Museum of Natural History/Leiden
    Repository Name: National Museum of Natural History, Netherlands
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  • 4
    Publication Date: 2024-01-12
    Description: Gulella adami spec. nov. is described from a classical West African locality, Assini in the Ivory Coast (C\xc3\xb4te d\'Ivoire). It is most unusual in showing two superficial parietal processes, which may also be interpreted as a double angular lamella, in the aperture of the shell. The shell closely resembles that of various Enidae in SE Europe and adjoining areas around the Mediterranean, thereby providing a striking example of convergent evolution.
    Keywords: Gastropoda ; Pulmonata ; Streptaxidae ; Gulella ; new species ; Enidae ; convergent evolution ; Ivory Coast ; West Africa
    Repository Name: National Museum of Natural History, Netherlands
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  • 5
    Publication Date: 2024-01-12
    Description: A new species of Trachycystis s.l. (Charopidae) from the Hanglip Forest in the Soutpansberg complex in the Northern Province of South Africa is described. Absence of anatomical data precludes more precise classification. The shell is characterized by a spirally sculpted apex and a somewhat irregular flange-like costulation on the later whorls.
    Keywords: Mollusca ; Gastropoda ; Pulmonata ; Charopidae ; Trachycystis ; South Africa ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 6
    Publication Date: 2024-01-12
    Description: Born on 13 September 1931 in Rotterdam, Jacobus Theodorus [Koos] Wiebes read biology at Leiden University where he obtained his Ph.D. in 1963 on studies of Indo-Australian fig wasps. He started working on spiders (Lycosidae, Pisauridae) and beetles (Carabidae, Cetoniidae, Helodidae), but he earned his scientific reputation as a specialist in fig wasps (Hymenoptera: Agaonidae, Torymidae), their parasitoids and intricate host relationships (1961-1994: 89 papers). He served for many years on the staff of the Rijksmuseum van Natuurlijke Historie, Leiden (1955-1970, initially as assistant, later as curator of Coleoptera and as assistant director since 1965), to return as director of the newly merged national zoology and geology museums (ad interim 1982-1984, director 1984-1989). In 1970 he was appointed to the chair of Systematic Zoology and Evolutionary Biology at Leiden University, where he worked successfully until returning to the museum. Wiebes initiated studies on the lepidopteran complex of Yponomeuta species and their host plants, studying speciation in a context of ecology, taxonomy and phylogeny. Most results in this field were published in conjunction with Dr W.M. Herrebout and various (mainly Ph.D.) students. Indeed, this research project attracted a host of students and also world-wide attention. Wiebes had a talent for organization and management so that he was frequently asked to serve on various committees mainly concerned with biology on an academic level. In 1978 he was elected a member of the Koninklijke Nederlandse Akademie van Wetenschappen, Amsterdam, where he later served on various councils. His influence on the organization of biology in the universities and research councils was indeed nationwide. Health problems forced him to take early retirement in 1989, but he insisted on completing publication of his work on the fig wasps. On 6 December 1999 he died in Leiderdorp leaving a first reputation as an evolutionary biologist and a systematic entomologist.
    Keywords: Hymenoptera ; Chalcidoidea ; Agaonidae ; Torymidae ; fig wasps ; figs ; co-evolution ; Lepidoptera ; Yponomeutidae ; Yponomeuta ; ermine moths ; Coleoptera ; Carabidae ; Cetoniidae ; Helodidae ; Arachnida ; Lycosidae ; Pisauridae ; evolutionary biology ; taxonomy ; phylogeny ; ecology ; biography ; bibliography ; history of biology ; Rijksmuseum van Natuurlijke Historie/Leiden-National Museum of Natural History/Leiden
    Repository Name: National Museum of Natural History, Netherlands
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  • 7
    Publication Date: 2024-01-12
    Description: Gulella meredithae spec. nov. is described from the uplands of central and northern Malawi. It belongs to what has been termed the G. browni-group (better called the G. radius-group), an assemblage of Central and East African taxa with small shells with a noticeably acute apex, with more or less smooth nepionic whorls and with marked costulation on the remaining whorls. Attention is drawn to the striking juvenile apertural dentition.
    Keywords: Gastropoda ; Pulmonata ; Streptaxidae ; Gulella ; Africa ; Malawi ; juvenile dentition ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
    Publication Date: 2024-01-12
    Description: The genus Negulus is reviewed; only four Recent species, restricted to continental Africa, are recognized.\nThe genus is extinct in Europe, being only recorded from Tertiary deposits. A key to the shells of the Recent species (all figured) is supplied. The anatomy is as yet unknown. A sinistral shell of N. abyssinicus is described from among a series of paralectotypes in the Leiden Museum, the first such abnormality in the genus (figured). A fair amount of shell material has become available (among which some historical specimens) so that metric data may be compared with greater confidence. Recent occurrence is established/confirmed for Eritrea, Ethiopia, Sudan, Kenya, Tanzania, Zaire, Zambia, Mala\xc5\xb5i, and Bioko (Fernando Poo). The small size of the shell necessitates sampling forest leaf litter, a technique that has not been widely applied in Africa; undoubtedly the genus occurs much more widely in the Afrotropical Region. Pupa obliquicostulata from St. Helena Is. is removed from the genus because of the presence of apertural dentition.
    Keywords: Gastropoda ; Pulmonata ; Vertiginidae ; Negulus ; Africa ; St. Helena Is. ; taxonomy
    Repository Name: National Museum of Natural History, Netherlands
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