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  • 1
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    Unknown
    In:  Beaufortia (0067-4745) vol.1 (1951) nr.1 p.1
    Publication Date: 2014-10-27
    Description: Compared with their New World relatives of the subfamily Cyprinodontinae, the Old World Cyprinodonts are but little known. However, some interesting accounts on Turkish species, discovered by Kosswig, Sözer and Aksiray, have recently been published. Besides the species known, several new forms and species are described. While compiling an account on these fishes suitable for the home aquarium (Hoedeman & Bronner, 1950—1951), we felt some characters need reexamination, not only of Aphanius, but also of the North African genus Tellia which is said to differ from Aphanius only in the absence of ventral fins.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
    facet.materialart.
    Unknown
    In:  Beaufortia (0067-4745) vol.1 (1951) nr.2 p.1
    Publication Date: 2014-10-27
    Description: Voorjaar 1949 ontving ik een kleine collectie levende vissen uit Suriname (Nederlands Guiana), door een zeeman verzameld in een poel nabij Paramaribo. Helaas is de juiste vindplaats niet nader aangegeven, dan enige kilometers ten zuiden van de hoofdstad. Onmiddellijk na ontvangst werden de vissen, die hier het onderwerp van bespreking zijn, in een groot gezelschapsaquarium (150 X 60 X 50 cm. hoog) ondergebracht, dat reeds werd bevolkt door verscheidene Nannostomini, Hasemania marginata, Rivulus cylindraceus, Acanthophthalmus kuhli, Dermogenus pusillus en Nannacara anomala en N. taenia.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 3
    facet.materialart.
    Unknown
    In:  Studies on the Fauna of Curaçao and other Caribbean Islands (0166-5189) vol.8 (1958) nr.1 p.112
    Publication Date: 2014-10-27
    Description: The present paper is chiefly based on the Rivulid fishes collected by Dr. P. Wagenaar Hummelinck in the Antilles during the years 1930, 1936, 1937, and 1955, and in addition on some specimens collected by various other investigators at earlier dates. Some of the specimens, in particular those belonging to Rivulus marmoratus have been recorded before by Wagenaar Hummelinck (1933, 1940), Sanders (1936), and de Beaufort (1940). With the aid of Hummelinck’s field notes and water analyses, some further information could be given on the habitat and salt tolerance of the island Rivulids, cf. table 3. I wish to express my sincere thanks to Dr. K. H. Voous, Curator of Birds of the Zoological Museum of Amsterdam, and Professor of Zoogeography at the Free University of Amsterdam, for his aid and advice; to Dr. Ethelwynn Trewavas, Curator of Fishes of the British Museum (Natural History), London, for her kind cooperation in taking counts and measurements on ten of Boulenger’s types of Rivulus harti, and for sending me in exchange four topotypical specimens of Rivulus harti; to Dr. Leonard P. Schultz, Curator of Fishes of the Smithsonian Institution, Washington, for sending me additional material from Margarita; to Dr. M. Boeseman, Curator of Fishes of the State Museum of Natural History, Leiden, who lent me two specimens of Rivulus marmoratus from Curaçao; and finally to Dr. P. Wagenaar Hummelinck, Zoological Laboratory, Utrecht, for putting his Rivulid material at my disposal, and for his kindness and friendly suggestions.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 4
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    In:  Beaufortia (0067-4745) vol.6 (1957) nr.71 p.147
    Publication Date: 2014-10-27
    Description: The present paper deals with part of a recently acquired collection of freshwater fishes, captured by Mr. J. VAN DER KAMP, Amsterdam, during his military service in Surinam in the years 1956 and 1957. All material is finely preserved and ecological data as well as numerous black and colour photographs by the collector add to the scientific interest of the collection.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 5
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    Unknown
    In:  Studies on the Fauna of Suriname and other Guyanas (0300-5488) vol.3 (1959) nr.1 p.44
    Publication Date: 2014-10-27
    Description: The present paper embodies the results of a study of 362 specimens of the genus Rivulus from Suriname and the other Guyanas. So far, 58 species names (morphological species or subspecies) have been proposed, by a great many authors; these names are listed on pages 52—53. Of the 58, topotypical specimens have been examined in 8 instances. In order to facilitate a future review of the genus, which is in great need of revision, short remarks are made on the morphology and ecology of a number of specimens, from various localities, belonging to distinct species.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 6
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    Unknown
    In:  Beaufortia vol. 1 no. 1, pp. 1-6
    Publication Date: 2024-01-12
    Description: Compared with their New World relatives of the subfamily Cyprinodontinae, the Old World Cyprinodonts are but little known. However, some interesting accounts on Turkish species, discovered by Kosswig, S\xc3\xb6zer and Aksiray, have recently been published. Besides the species known, several new forms and species are described.\nWhile compiling an account on these fishes suitable for the home aquarium (Hoedeman & Bronner, 1950\xe2\x80\x941951), we felt some characters need reexamination, not only of Aphanius, but also of the North African genus Tellia which is said to differ from Aphanius only in the absence of ventral fins.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 7
    Publication Date: 2024-01-12
    Description: Voorjaar 1949 ontving ik een kleine collectie levende vissen uit Suriname (Nederlands Guiana), door een zeeman verzameld in een poel nabij Paramaribo. Helaas is de juiste vindplaats niet nader aangegeven, dan enige kilometers ten zuiden van de hoofdstad.\nOnmiddellijk na ontvangst werden de vissen, die hier het onderwerp van bespreking zijn, in een groot gezelschapsaquarium (150 X 60 X 50 cm. hoog) ondergebracht, dat reeds werd bevolkt door verscheidene Nannostomini, Hasemania marginata, Rivulus cylindraceus, Acanthophthalmus kuhli, Dermogenus pusillus en Nannacara anomala en N. taenia.
    Repository Name: National Museum of Natural History, Netherlands
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  • 8
    facet.materialart.
    Unknown
    In:  Studies on the Fauna of Suriname and other Guyanas vol. 3 no. 1, pp. 44-98
    Publication Date: 2024-01-12
    Description: The present paper embodies the results of a study of 362 specimens of the genus Rivulus from Suriname and the other Guyanas.\nSo far, 58 species names (morphological species or subspecies) have been proposed, by a great many authors; these names are listed on pages 52\xe2\x80\x9453. Of the 58, topotypical specimens have been examined in 8 instances. In order to facilitate a future review of the genus, which is in great need of revision, short remarks are made on the morphology and ecology of a number of specimens, from various localities, belonging to distinct species.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 9
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    Unknown
    In:  Beaufortia vol. 1 no. 3, pp. 1-8
    Publication Date: 2024-01-12
    Description: Among a recent importation from the Belgian Congo there was a multitude of lovely little aquariumfishes, mostly well-known to aquarists. but partly new to them, and some of these fishes even new to science. A large number of small \xe2\x80\x9dTetra\xe2\x80\x99s\xe2\x80\x9d closely resembled the well-known species Petersius caudalis. Four perfectly preserved specimens (formol), were supplied to me by Mr. C. A. Spoelstra of Haarlem, a well-known aquarist-breeder.\nIn order to identify this species, and designate its proper place, I started to study literature and material in the Museum. It then became evident that the classification and nomenclature of this group is far behind, a case somewhat similar to the one I recently discussed concerning the South-American Nannostomidi (Hoedeman, 1950 : 11-271). A large number of forms, merely of subspecific rank or local varieties only, have been named and classified as good species, while too much stress has been laid upon the dentition and number of rows of teeth as a character in the classification of this group. This character now clearly is of polyphyletic nature, and even highly variable in species and subspecies.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 10
    Publication Date: 2024-01-12
    Description: During August 1961 I received from Mr. E. Roloff (Karlsruhe, Germany), a well-known aquarist, three specimens of an unidentified Rivulus. The specimens were collected by Mr. Roloff during his journey to Ecuador early 1961. The sampling place is described by him in the followinig words: \xe2\x80\x9eDie Rivulus stammen aus einem kleinen, sehr schattigen Bach, der in die Lagune von Limoncocha m\xc3\xbcndet. Das Wasser ist sehr weich (etwa 1\xc2\xb0 DH) und hat eine Temperatur von etwa 26\xc2\xb0 Celcius, die sich nat\xc3\xbcrlich zeitweilig noch erh\xc3\xb6ht. Der Bach ist nur etwa 1 Meter breit und hat einen geringen Wasserstand, oft nur 20 bis 25 cm. Die Rivulus halten sich haupts\xc3\xa4chlich zwischen den Baumw\xc3\xbcrzeln und den hineingefallenen Zweigen auf. B\xc3\xbcsche und B\xc3\xa4ume \xc3\xbcberschatten diesen Bach sehr stark.\xe2\x80\x9d This first sample, 1 male and 2 females, was tentatively identified as closely related to or identical with Rivulus peruanus (Regan, 1903), though they did not agree in several technical features with that species. In my key to the genus Rivulus 1 placed peruanus in the isthmensis-complex, though the frontal pattern of this species is not known. Moreover it has as many as 45\xe2\x80\x9447 rows of scales. The male of our sample had only 37 scales in lateral direction, whereas the females were both damaged and in bad state of preservation. I could not make out the proper number of scales.
    Repository Name: National Museum of Natural History, Netherlands
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