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Peculiarities of the hind limb musculature in monotremes: an anatomical description and functional approach
Gambaryan P.P., Aristov A.A., Dixon J.M., Zubtsova G.Ye.
P. 1-36
A thorough description of the hind limb and pelvic muscles of two species of the monotremes is given. The homology of some muscles is discussed. During terrestrial locomotion the platypus shows a movement pattern which is optimal for swimming. Locomotion in the monotremes shows specific mechanical characteristics which differ from those in other tetrapods. Retraction of the femur is one of the main components of propulsive movement in majority of tetrapods; in sphenodontians, crocodiles, squamates it can reach more than 70°, and in therians it is 50–70°. In the monotremes the terrestrial locomotion is executed mainly by pronation of the femur, retraction being no more than 15°. A new hypothesis is proposed on the tuber calcanei evolutionary changes in the tetrapods. Enlargement of the tuber calcanei is usually believed to be strictly connected with the increasing role of flexion in the ankle joint. We consider tuber calcanei primary enlargement to be caused by increasing abduction in the ankle joint which helped the hind foot from slipping sideways during symmetrical-diagonal gaits in animals with widely extended extremities. Tuber calcanei enlargement in mammalian ancestors (as well as the analogous structure enlargement in crocodiles) resulted in increasing load on the lateral toes. In the mammalian evolutionary trend to use asymmetrical gaits, the primary function of the tuber calcanei changed gradually in a way that it could help increasing flexion in the ankle joint, transformation came to an end when mammalian extremities became parasagittal in position. There is an undoubted connection between the tuber calcanei and the fifth metatarsal in Monotremata as well as many advanced cynodonts.

DOI: 10.15298/rusjtheriol.1.1.01


  • Allen G.M. 1912. Zaglossus // Memoirs of the Museum of Comparative Zoology at Harvard College. Vol.40. P.253-307.
  • Abel W. 1930. Beitrage zur Kenntnis der Anpassungserscheinungen der distalen Hinterfussmuskulatur der Saugetiere bei einem Wechsel der Lebensweise // Morphologisches Jahrbücher. Bd.64. Hf.4. S.558-635.
  • Appleton A.B. 1928. The muscles and nerves of the post-axial region of the tetrapod thigh // Journal of Anatomy. Vol.62. Pt.2. P.364-438.
  • Aristov A.A. 1990. [Short muscles of the foot in family Muridae (Rodentia) and homology and nomenclature of these muscles] // Trudy Zoologicheskogo Instituta AN SSSR. Vol.215. P.82-99. [In Russian]
  • Carroll R.L. 1988. Vertebrate Paleontology and Evolution. New York: W.H. Freeman and Co. 698 p.
  • Coues E. 1870. On the myology of Ornithorhynchus // Proceedings of the Essex Institute. Vol.6. P.127-173.
  • Dobson G.E. 1882. A Monograph of the Insectivora, Systematics and Anatomy. London: P.I. John Van Voorst. 172 p.
  • Elftman Y.O. 1929. Functional adaptations of the pelvis in marsupials // Bulletin of the American Museum of Natural History. Vol.58. P.189-232.
  • Forster A. 1918. Zur Morphogenese der Inscriptio tendinea des M. semitendinosus // Anatomischer Anzeiger. Bd.51. No.7. S.145-164.
  • Gambaryan P.P. 1960. [Adaptive Features of the Locomotory Organs in Fossorial Mammals]. Erevan: Izdatel'stvo AN Armyanskoi SSR. 195 p. [In Russian]
  • Gambaryan P.P. 1974. How Mammals Run. New York: Wiley. 367 p.
  • Gambarjan P.P. & Karapetjan W.S. 1961. Besonderheiten im Bau des Seenlowen (Eumetopias), der Baikalrobbe (Phoca) und des Seeotters (Enchydra lutris) in Anpassung an die Fortbewegung im Wasser // Zoologische Jahrbücher. Abteilung für Anatomie und Ontogenie der Thiere. Bd.79. Hf.1. S.123-148.
  • Glaesmer E. 1910. Die Beugenmuskeln fm Unterschenkel und Fuss bei den Marsupialia, Insectivora, Edentata, Prosimiae und Simiae // Morphologischer Jahrbücher. Bd.41. Hf.2. S.149-336.
  • Gray J. 1968. Animal Locomotion. London: Weidenfeld & Nicolson. 479 p.
  • Haines R.W. 1939. A consideration of the muscular nerve supply // Journal of Anatomy. Vol.70. No.1. P.33-55.
  • Howell A. B. 1926. Anatomy of the Wood Rat. Monographs of the American Society of Mammalogists 1. 225 p.
  • Howell A.B. 1933. The saltatorial rodent Dipodomys: the functional and comparative anatomy of its muscular and osseous systems // Proceedings of the American Academy of Arts and Sciences. Vol.67. No.10. P.377-536.
  • Jenkins F.A., Jr. 1970. Limb movements in a monotreme (Tachyglossus aculeatus): a cineradiographic analysis // Science. Vol.168. No.3938. P.1473-1475.
  • Jenkins F.A., Jr. & Parington F.R. 1976. Postcranial skeleton of the Triassic mammals Eozostrodon, Megazostrodon and Erythrotherium // Philosophical Transactions of the Royal Society of London, Series B. Vol.273. No.926. P.387-431.
  • Jouffroy F.K. 1962. La musculature des membres chez les Lemuriens de Madagascar. Etude descriptive de comparative // Mammalia. T.26. Suppl.2. 340 p.
  • Jouffroy F.K., Lessertisseur J. & Saban R. 1971. Particuliarites musculaires des monotremes // Traité de Zoologie. T.XVI. Fasc.III. Paris: Masson et C. editors. P.679-836.
  • Kielan-Jaworowska Z. & Gambaryan P.P. 1994. Postcranial anatomy and habits of Asian multituberculate mammals // Fossils and Strata. No.36. 92 p.
  • Klingener D. 1964. The comparative myology of four Dipodoid rodents (genera Zapus, Napaeozapus, Sicista and Jaculus) // Miscellaneous Publications of the Museum of Zoology, University of Michigan. Vol.93. P.1-100.
  • Kyou-Jouffroy F. 1971. Musculature des membres // Traité de Zoologie. T.XVI. Fasc.III. Paris: Masson et C. editors. P.1-476.
  • Lewis O.J. 1963. The monotreme cruro-pedal flexor musculatare // Journal of Anatomy. Vol.97. Pt.1. P.55-63.
  • Lewis O.J. 1964. The evolution of the long flexor muscles of the leg and foot // International Review of General and Experimental Zoology. Vol.1. P.165-185.
  • Lewis O.J. 1989. Functional Morphology of the Evolving Hand and Foot. Oxford: Clarendon. 359 p.
  • Low J.W. 1929. Contributions to the development of the pelvic girdle. III. The pelvic girdle and its related musculature in Monotremes // Proceedings of the Zoological Society of London. Vol.1. Pt.2. P.245-266.
  • Manners-Smith B.A. 1894. On some points in the anatomy of Ornithorhynchus paradoxus // Proceedings of the Zoological Society of London. P.694-722.
  • Meckel J.F. 1826. Ornithorhynchi paradoxi Descriptio Anatomica. Lipsiae: G.Fleischer. 63 p.
  • Mivart S.G. 1866. On some points in the anatomy of Echydna hystrix // Transactions of the Linnean Society of London. Vol.25. Pt.3. P.379-403.
  • Pearson H.S. 1926. Pelvic and thigh muscles of Ornithorhynchus // Journal of Anatomy. Vol.60. No.1. P.152-163.
  • Pridmore P.A. 1985. Terrestrial locomotion in Monotremes (Mammalia: Monotremata) // Journal of Zoology London, Series A. Vol.205. Pt.1. P.53-73.
  • Ribbing L. 1938. Die Muskeln und Nerven der Extremitaten // Bolk L., Goppert E., Kallius E. & Lubosch W. (eds.). Handbuch der Vergleichenden Anatomie der Wirbeltiere. Berlin & Wien: Urban & Schwarzenberg. 1106 p.
  • Rinker G.C. 1954. The comparative myology of the mammalian genera Sigmodon, Oryzomys, Neotoma and Peromyscus (Cricetinae) with remarks on intergeneric relationships // Miscellaneous Publications of the Museum of Zoology, University of Michigan. Vol.83. P.1-124.
  • Romer A.S. 1956. Osteology of the Reptiles. Chicago: The University of Chicago Press. 772 p.
  • Schaeffer B. 1941. The morphological and functional evolution of the tarsus in amphibians and reptiles // Bulletin of the American Museum of Natural History. Vol.78. P.395-472.
  • Schaller O. (ed.). 1992. Illustrated Veterinary Anatomical Nomeclature. Stuttgart: Ferdinand Enke. 614 p.
  • Snyder R.C. 1952. Quadrupedal and bipedal locomotion of the lizards // Copeia. No.2. P.64-70.
  • Sukhanov V.B. 1974. Symmetrical Locomotion of Terrestrial Vertebrates and Some Features of Movement of Lower Tetrapods. New Delhi, Bombay, Calcutta, New York: Amerind publishing Co. 274 p.
  • Szalay F.S. 1993. Pedal evolution of mammals in the Mesozoic // Szalay F.S., Novachec M.J. & McKenna M.C. (Eds.). Mammalian Phylogeny: Mesozoic Differentiation, Multituberculates, Monotremes, Early Therians and Marsupials. New York: Springer-Verlag. P.108-128.
  • Walter L.R. 1988. Appendicular musculature in the echidna, Tachyglossus aculeatus (Monotremata: Tachyglossidae) // Australian Journal of Zoology. Vol.36. No.1. P.65-81.
  • Westling C. 1889. Anatomische Untersuchungen über Echidna // Bihang till Kongl. Svenska Vetenscaps Akademiens Handllingar. Bd.15. No.3. 171 p.

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