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  • 1
    Electronic Resource
    Electronic Resource
    Hearing in whales
    Amsterdam : Elsevier
    Endeavour 18 (1959), S. 93-98 
    Details
    ISSN: 0160-9327
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/0160-9327(59)90147-4
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Unknown
    The Anatomy and Function of the Ear of the Bottle-nosed Dolphin Tursiops truncatus (1963)
    In:  Beaufortia (0067-4745) vol.9 (1963) nr.111 p.241
    Details
    Publication Date: 2014-10-27
    Description: 3. An account is given of sound conductivity experiments which were carried out on the auditory structures in a very fresh, dead specimen of Tursiops. 4. The probable function of the external auditory meatus is discussed in relationship to the arrangement of the accessory air sinuses of the middle ear. 5. The so-called ”auditory scanning” behaviour in odontocete cetaceans is commented upon in the light of preliminary experimental evidence of a vocal sound diffraction pattern.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
    Format: application/pdf
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  • 3
    facet.materialart.
    Unknown
    Evolution and the pathology of deep diving in the Bottlenosed Dolphin, Tursiops truncatus (Montagu, 1821) (Notes on Cetacea, Delphinoidea V) (1972)
    In:  Beaufortia (0067-4745) vol.20 (1972) nr.260 p.15
    Details
    Publication Date: 2014-10-27
    Description: Cadenat (1959) and Rancurel (1964) produced strong indirect evidence that off the west coast of Africa, the Bottle-nosed Dolphin, Tursiops truncatus, is in the habit of diving very deeply, possibly down to 600 m. Examination of the skulls of fully adult specimens of Tursiops taken off Dakar and St. Helena revealed marked distension and fenestration of bones associated with the accessory air sinuses of the middle ear. The condition suggests a pathological enhancement of the normal processes of evolution of these bones in order to adjust to excessive middle ear pressure sustained intermittently over a long period.
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 4
    facet.materialart.
    Unknown
    On the dimensions of three skulls of the species of dolphin Lipotes vexillifer Miller, 1918 (Cetacea, Platanistoidea, Iniidae) (1975)
    In:  Beaufortia (0067-4745) vol.24 (1975) nr.308 p.1
    Details
    Publication Date: 2014-10-27
    Description: The dimensions are given of three skulls of Lipotes vexillifer, the only specimens preserved in collections outside of China. At the same time drawings of the Lipotes vexillifer skull in the British Museum (Natural History) have been made and published with a photograph of the London specimen before it was dissected. Reasons are stated for refuting the affinity of Lipotes with Platanista, as postulated by Hinton & Pycraft (1922).
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 5
    facet.materialart.
    Unknown
    The comparative anatomy of the nasal tract and the function of the spermaceti organ in the Physeteridae (Mammalia, Odontoceti) (1973)
    In:  Bijdragen tot de dierkunde vol. 43 no. 1, pp. 93-112
    Details
    Publication Date: 2024-01-12
    Description: The nasal complex of Kogia has been compared with that of Physeter and shown to be homologous with that of less specialized ondotocetes.\nThe nasal complex of the Physeterids is structurally related to that of the Platanistids and Ziphioids. The spermaceti organ unique to the Physeteridae forms a part of the functional morphology of the right naris and is not a bilaterally symmetrical structure like the melon of other odontocetes.\nSeparation of the two nares in the Physeteridae is caused by the asymmetrical development of the spermaceti organ. In Kogia part of the musculature of the left naris actuates the opening of the right naris, a feature unique amongst the Mammalia.\nThe right naris is not used in external respiration but forms an air reservoir subservient to phonation at extreme depths.\nThe spermaceti organ assists in evacuation of the lungs prior to a deep dive.\nThe fat depots of the spermaceti organ in Physeter and the spermaceti organ and adipose cushion in Kogia may serve to absorb nitrogen at extreme pressure. The air reservoirs could perform a useful hydrostatic function during the ascent from great depths.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 6
    facet.materialart.
    Unknown
    On the dimensions of three skulls of the species of dolphin Lipotes vexillifer Miller, 1918 (Cetacea, Platanistoidea, Iniidae) (1975)
    In:  Beaufortia vol. 24 no. 308, pp. 1-5
    Details
    Publication Date: 2024-01-12
    Description: The dimensions are given of three skulls of Lipotes vexillifer, the only specimens preserved in collections outside of China. At the same time drawings of the Lipotes vexillifer skull in the British Museum (Natural History) have been made and published with a photograph of the London specimen before it was dissected. Reasons are stated for refuting the affinity of Lipotes with Platanista, as postulated by Hinton & Pycraft (1922).
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 7
    facet.materialart.
    Unknown
    Evolution and the pathology of deep diving in the Bottlenosed Dolphin, Tursiops truncatus (Montagu, 1821) (Notes on Cetacea, Delphinoidea V) (1972)
    In:  Beaufortia vol. 20 no. 260, pp. 15-21
    Details
    Publication Date: 2024-01-12
    Description: Cadenat (1959) and Rancurel (1964) produced strong indirect evidence that off the west coast of Africa, the Bottle-nosed Dolphin, Tursiops truncatus, is in the habit of diving very deeply, possibly down to 600 m. Examination of the skulls of fully adult specimens of Tursiops taken off Dakar and St. Helena revealed marked distension and fenestration of bones associated with the accessory air sinuses of the middle ear.\nThe condition suggests a pathological enhancement of the normal processes of evolution of these bones in order to adjust to excessive middle ear pressure sustained intermittently over a long period.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
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  • 8
    facet.materialart.
    Unknown
    The Anatomy and Function of the Ear of the Bottle-nosed Dolphin Tursiops truncatus (1963)
    In:  Beaufortia vol. 9 no. 111, pp. 241-256
    Details
    Publication Date: 2024-01-12
    Description: 3. An account is given of sound conductivity experiments which were carried out on the auditory structures in a very fresh, dead specimen of Tursiops. 4. The probable function of the external auditory meatus is discussed in relationship to the arrangement of the accessory air sinuses of the middle ear. 5. The so-called \xe2\x80\x9dauditory scanning\xe2\x80\x9d behaviour in odontocete cetaceans is commented upon in the light of preliminary experimental evidence of a vocal sound diffraction pattern.
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
    Format: application/pdf
    Location Call Number Expected Availability
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    PAPER (OA)
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