Comparative analysis of the subcutaneous musculature in some hystricomorph rodents (Rodentia: Hystricomorpha) Zherebtsova O.V. P. 159-170 The structure of the subcutaneous musculature (m. cutaneus trunci) in three species of hystricomorph rodents (Hystricomorpha): Dasyprocta leporina (Linnaeus, 1766), Chinchilla lanigera Bennett, 1829, and Octodon degus (Molina, 1782), was studied. The members of two other suborders of Rodentia, Rattus norvegicus (Berkenhout, 1769) (suborder Myomorpha) and Spermophilus citellus (Linnaeus, 1766) (suborder Sciuromorpha), were also included in the morphological analysis for comparative purposes. In these two forms, the m. cutaneus trunci is more simple and formed by a single muscular layer, terminating on the medial side of the humerus (medial head). This structure of the subcutaneous muscle is usually considered as more primitive, and probably close to its initial state which is characteristic of ancestral forms of Rodentia. In all hystricomorphs studied, a considerable differentiation and complication of the subcutaneous muscle is observed. In this case, a lateral head of the m. cutaneus trunci, inserting on the lateral aspect of the forelimb, is developed. The appearance of the pars thoracoabdominalis in the structure of the subcutaneous muscle is also a specific feature of the hystricomorph rodents. At the same time, in D. leporina and C. lanigera, a medial head of the m. cutaneus trunci is still well expressed, but in O. degus, it is almost lost. It can be assumed that the progressive development and complication of the subcutaneous muscle in the evolution of hystricomorphs was largely conditioned by the requirement to improve their locomotor functions during a broad adaptive radiation of this group.
DOI: 10.15298/rusjtheriol.15.2.08References- Briant M.D. 1945. Phylogeny of Nearctic Sciuridae // American Midland Naturalist. Vol.33. P.257–390.
- Budnikow P. & Wolossjuk W. 1932. Zur Morphologie des M. cutaneous trunci // Anatomischer Anzeiger. Bd.73. S.204–209.
- Davydova A.N. & Zherebtsova O.V. 2015. [The subcutaneous muscles of small mustelids (Carnivora, Mustelidae)] // Proceedings of the Zoological Institute RAS. Vol.319. No.3. P.363–377 [in Russian, with English summary].
- Dobson G.E. 1882. A Monograph of the Insectivora, Systematic and Anatomical. Pt.I. London: John van Voorst. 172 p.
- Enders R.K. 1937. Panniculus carnosus and formation of the pouch in didelphids // Journal of Morphology. Vol.61. P.1–61.
- Gambaryan P.P. 1960. [Adaptive features of the locomotor organs in fossorial mammals]. Erevan: Izdatel’stvo AN Armyanskoi SSR. 195 p. [in Russian].
- Gambaryan P.P. & Dukel’skaja N.M. 1955. [The Rat]. Moscow: Izdatel’stvo Sovetskaya Nauka. 256 p. [in Russian].
- Gambaryan P.P. & Zherebtsova O.V. 1988. [Transformation of hypodermic muscles caused by the development of acicular integument in Insectivora (Erinaceidae and Tenrecidae). Comunication 1] // Zoologicheskii Zhurnal. Vol.67. No.1. P.79–89 [in Russian, with English summary].
- Gambaryan P.P., Zherebtsova O.V. & Perepelova A.A. 2013. Comparative analysis of forelimb musculature in Laonastes aenigmamus (Rodentia: Diatomyidae) // Proceedings of the Zoological Institute RAS. Vol.317. No.3. P.226–245.
- Gambaryan P.P., Zherebtsova O.V. & Platonov V.V. 2010. [Convergent development of the subcutaneous muscles in moles and golden moles] // Zhurnal Obshchei Biologii. Vol.71. No.3. P.163-175 [in Russian with English summary].
- Green E.C. 1935. Anatomy of the rat // Transactions of the American Philosophical Society, N.S. Vol.27. P.1–370.
- Howell A.B. 1926. Anatomy of the Wood Rat. Baltimore: the Williams and Wilkins. 230 p.
- Johnson-Murray J.L. 1987. The comparative myology of the gliding membranes of Acrobates, Petauroides and Petaurus contrasted with the cutaneous myology of Hemibelideus and Pseudocheirus (Marsupialia, Phalangeridae) and with selected gliding Rodentia (Sciuridae and Anamoluridae // Australian Journal of Zoology. Vol.35. No.2. P.101–113.
- Jouffroy F.K. 1971. Les peauciers du tronc et des membres et leurs derives // Traitй de Zoologie. Anatomie, Systйmatique, Biologie. Vol.16. No.3. P.626–678.
- Klingener D. 1964. The comparative myology of four dipodoid rodents (genera Zapus, Napaeozapus, Sicista, and Jaculus) // Miscellaneous Publications of Museum Zoology of the University of Michigan. No.124. P.1–100.
- Langworthy O.R. 1925. A morphological study of the panniculus carnosus and its genetical relationship to the pectoral musculature in rodents // American Journal of Anatomy. Vol.35. P.283–302.
- Meinertz T. 1941. The skin musculature of the Greenland lemming Dicrostonyx groenlandicus (Traill.) // Meddelelser om Grшnland. Vol.131. P.1–77.
- Michelsson G. 1922. Die Hautmuskulatur des Igels (Erinaceus europaeus) // Morphologischer Jahrbьcher. Bd.69. S.110–220.
- Nozdrachev A.D. 1973. [Anatomy of Cat]. Leningrad: Izdatel’stvo Nauka. 247 p. [in Russian].
- Parsons F.G. 1894. On the myology of the sciuromorphine and hystricomorphine rodents // Proceedings of the Zoological Society of London. Vol.1894. P.251–296.
- Rinker G.C. 1954. The comparative myology of the mammalian genera Sigmodon, Oryzomys, Neotoma, and Peromyscus (Cricetinae), with remarks of their intergeneric relationships // Miscellaneous Publications of Museum Zoology of the University of Michigan. No.83. P.1–124.
- Walker E.P. 1964. Mammals of the World. Baltimore: John Hopkins Press. Vol.2. 320 p.
- Woods C.A. 1972. Comparative myology of jaw, hyoid and pectoral appendicular regions of New and Old World hystricomorph rodents // Bulletin of the American Museum of Natural History. Vol.147. P.115–198.
- Woods C.A. & Howland E.B. 1977. The skin musculature of hystricognath and other selected rodents // Zentralblatt fьr Veterinarmedizin, Reihe C – Journal of Veterinary Medicine, Series C – Anatomia Histologia Embryologia. Vol.6. P.240–264.
- Woods C.A. & Kilpatrick C.W. 2005. Suborder Hystricomorpha. Infraorder Hystricognathi // Wilson D.E. & Reeder A.M. (eds.). Mammal Species of the World. Baltimore: Johns Hopkins University Press. Vol.2. P.1538–1600.
- Zherebtsova O.V. 2000. Spiny cover and defence strategy of mammals // Proceedings of Zoological Institute RAS. Vol.286. P.169–174.
- Zherebtsova O.V. & Davydova A.N. 2011. [Features of structure of the skin and subcutaneous muscles in Laonastes aenigmamus] // Rozhnov V.V. et al. (eds.). Proceedings of International Conference “Mammals of Russia and Adjacent Territories”. IX Congress of Theriological Society, RAS. Moscow: KMK Scientific Press. P.162 [in Russian with English summary].
- Zherebtsova O.V., Panyutina A.A., Gambaryan P.P. & Platonov V.V. 2016. [About jump locomotion of some rock hystricomorphs] // Theriofauna of Russia and adjacent territories. International Conference. X Congress of the Russian Theriological Society RAS. Moscow 1–5, 2016. Moscow: KMK Scientific Press. P.162 [in Russian].
Download PDF
|