References
- Boenninghaus , G. 1904 . Das Ohr des Zahnwales, zugleich ein Beitrag zur Theorie der Schalleitung . Zoologische Jahrbücher , 19 : 189 – 360 .
- Eales , N. B. 1950 . The skull of the foetal narwhal, Monodon monoceros . Philosophical Transactions of the Royal Society of London (Series B, Biological Sciences) , 235 : 1 – 33 .
- Evans , W. E. and Awbrey , F. T. 1988 . “ Natural history aspects of marine mammal echolocation: feeding strategies and habitat ” . In Animal Sonar. Processes and Performance , NATO ASI Series A Edited by: Nachtigall , P. E. and Moore , P. W. B. Volume 156 , 521 – 534 . New York : Plenum Press .
- Gray , O. 1951 . An introduction to the study of the comparative anatomy of the labyrinth . Journal of Laryngology and Otology , 65 : 681 – 703 .
- Holzmann , T. 1991 . Morphologie und mikroskopische Anatomie des Gehirns beim fetalen Narwal, Monodon monoceros. , 84 Faculty of Human Medicine, University of Frankfurt am Main . Dissertation
- Jansen , J. and Jansen , J.K.S. 1969 . “ The nervous system of Cetacea ” . In The Biology of Marine Mammals , Edited by: Andersen , H. T. 175 – 252 . New York : Academic Press .
- Jones , G. M. and Spells , K. E. 1963 . A theoretical and comparative study of the functional dependence of the semicircular canal upon its physical dimensions . Proceedings of the Royal Society London (B) , 157 : 403 – 419 .
- Ketten , D. R. 1991 . “ The marine mammal ear: specializations for aquatic audition and echolocation ” . In The Biology of Hearing , Edited by: Webster , D. , Fay , R. and Popper , A. 717 – 750 . Berlin : Springer‐Verlag .
- Ketten , D. R. 1992 . “ The cetacean ear: form, frequency, and evolution ” . In Marine Mammal Sensory Systems , Edited by: Thomas , J. A. and Kastelein , R. A. 53 – 75 . New York : Plenum Press .
- Ketten , D. R. 1998 . Marine Mammal Auditory Systems: A Summary of Audiometric and Anatomical Data and its Implications for Underwater Acoustic Impacts , La Jolla, California : U.S. Department of Commerce, Southwest Fisheries Science Center, NOAA Technical Memorandum .
- Ketten , D. R. and Wartzok , D. 1990 . “ Three‐dimensional reconstructions of the dolphin ear ” . In Sensory Abilities of Cetaceans , NATO ASI Series Edited by: Thomas , J. A. and Kastelein , R. Volume 196 , 81 – 105 . New York : Plenum Press .
- Lindenlaub , T. , Burda , H. and Nevo , E. 1995 . Convergent evolution of the vestibular organ in the subterranean mole‐rats, Cryptomys and Spalax, as compared with above‐ground rat, Rattus . Journal of Morphology , 224 : 303 – 311 .
- Oelschläger , H. A. 1990 . “ Evolutionary morphology and acoustics in the dolphin skull ” . In Sensory Abilities of Cetaceans , NATO ASI Series Edited by: Thomas , J. A. and Kastelein , R. Volume 196 , 137 – 162 . New York : Plenum Press .
- Oelschläger , H. A. and Buhl , E. H. 1985 . Development and rudimentation of the peripheral olfactory system in the harbor porpoise, Phocoena phocoena (Mammalia: Cetacea) . Journal of Morphology , 18 : 351 – 360 .
- Oelschläger , H. H. A. and Kemp , B. 1998 . Ontogenesis of the sperm whale brain . Journal of Comparative Neurology , 399 : 210 – 228 .
- Oman , C. M. , Marcus , E. N. and Curthoys , I. S. 1987 . The influence of semicircular canal morphology on endolymph flow dynamics: an anatomically descriptive mathematical model . Acta Otolaryngologica , 103 : 1 – 13 .
- Steinhausen , W. 1933 . Uber die Beobachtung der Cupula in den Bogengangsampullen des Labyrinthes des lebenden Hechtes . Pflugers Archiv , 232 : 500 – 512 .
- Wever , E. G. , McCormick , J. G. , Palin , J. and Ridgway , S. H. 1971 . Cochlea of the dolphin, Tursiops truncatus: the basilar membrane . Proceedings of the National Academy of Sciences, USA , 68 : 2708 – 2711 .
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