Jaw and Tongue Muscles in the Australian Lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi)
by Anne Kemp* 
QUAAFI, University of Queensland, St. Lucia, Brisbane, Queensland 4072, Australia
* Author to whom correspondence should be addressed.
Journal of Engineering Research and Sciences, Volume 3, Issue 2, Page # 15-21, 2024; DOI: 10.55708/js0302003
Keywords: Jaw Muscles, Tongue (hyoid) Muscles, Australian Lungfish
Received: 23 October 2023, Revised: 12 December 2023, Accepted: 15 February 2024, Published Online: 21 February 2024
APA Style
Kemp, A. (2024). Jaw and Tongue Muscles in the Australian Lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi). Journal of Engineering Research and Sciences, 3(2), 15-21. https://doi.org/10.55708/js0302003
Chicago/Turabian Style
Kemp, Anne. “Jaw and Tongue Muscles in the Australian Lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi).” Journal of Engineering Research and Sciences 3, no. 2 (2024): 15-21. Accessed February 15, 2024. https://doi.org/10.55708/js0302003.
IEEE Style
A. Kemp, “Jaw and Tongue Muscles in the Australian Lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi),” Journal of Engineering Research and Sciences, vol. 3, no. 2, pp. 15-21, 2024, doi: 10.55708/js0302003.
The Australian lungfish, Neoceratodus forsteri, has several muscles associated with feeding. The massive adductor mandibularis muscle of N. forsteri, which closes the jaws, originates on the chondrocranium and inserts on the posterior aspect of Meckel’s cartilage in the mandible. The depressor mandibulae muscle, which opens the jaws, inserts on the medial articulation of the prearticular bones of the mandible and originates on the pectoral girdle. Oblique muscles, originating on the prearticular bone and inserted into tissues of the midline of the mandible, carry out the subterminal grinding movements of the mandible to masticate food. Separate muscles control the hyoid apparatus. Interhyoideus muscles originate on the posterior lateral aspect of the ceratohyal and insert on soft tissues medially to control fine movements of the tongue. The levator hyoideus muscle, originating on the posterolateral chondrocranium and inserting on the cartilage of the posterior ceratohyal, acts with the interhyoideus muscles to move the entire hyoid apparatus forwards and pushes the tongue, supported by the basihyal cartilage, into the space between the mandibular bones to facilitate suctorial actions of the jaws and draw food into the mouth. The paired geniocoracoideus muscle, originating on the pectoral girdle and inserting ventrally on the hypohyal cartilages and anterior ceratohyal bones, and the rectus cervicis muscle, also paired, originating on the pectoral girdle and inserting on the dorsal surface of the hypohyal cartilages, moves the hyoid apparatus into a resting position.
- G. Krefft, “Description of a gigantic amphibian allied to the genus Lepidosiren, from the Wide-Bay District, Queensland.” Proceedings of the Zoological Society of London. 1870, 221 – 224. 1870.
- R. S. Miles, “Dipnoan (lungfish) skulls and the relationships of the group: a study based on new species from the Devonian of Australia.” Zoological Journal of the Linnean Society. 61, 1–328. 1977.
- L. Cavin, V. Suteethorn, E. Buffetaut, H. Tong, H., A new Thai Mesozoic lungfish (Sarcopterygii, Dipnoi) with an insight into post-Palaeozoic dipnoan evolution. Zoological Journal of the Linnean Society, 149, 141–177. 2007.
- A. Kemp, L. Cavin, G. Guinot, “Evolutionary history of lungfishes with a new phylogeny of post-Devonian genera.” Palaeogeography, Palaeoclimatology, Palaeoecology, Paleontology. 4, 457–470. 2017.
- H.-P. Schultze, J. Chorn, “The Permo-Carboniferous genus Sagenodus and the beginning of modern lungfish.” Contributions to Zoology. 67, 9–70. 1996.
- R. Owen, “Description of the Lepidosiren annectens.” Transactions of the Linnean Society.18, 327-361. 1839.
- H.-P. Schultze, “Fossilium Catalogus 1: Animalia, pars 131, Dipnoi.” Kugler Publications, Amsterdam, New York. 1992.
- T. J. Challands, et al., 2019. “A lungfish survivor of the end-Devonian extinction and an Early Carboniferous dipnoan radiation.” Journal of Systematic Palaeontology, https://doi/10.1080/14772019.2019.1572234. 2019.
- L. Lison, “Recherches sur la structure et l’histogenese des dents du poisons dipneustes.” Archives de Biologie. 52, 279-320. 1941.
- A. Kemp, “Petrodentine in derived dipnoan dentitions.” Journal of Vertebrate Paleontology. 21, 422-437. 2001.
- W. E. Agar, “The development of the skull and visceral arches in Lepidosiren and Protopterus.” Transactions of the Royal Society of Edinburgh. 45, 49-64. 1906.
- T. W. Bridges, “On the morphology of the skull in the Paraguayan Lepidosiren and in other Dipnoids.” Transactions of the Zoological Society of London, 14, 325-376. 1898.
- K. E. Criswell, “The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi).” Zoological Journal of the Linnean Society. 174, 801-858. 2015.
- H. S. Baird, “The occipital bones of the Dipnoi.” Proceedings of the Royal Society of Victoria. 35 (N.S.), Part II,115-116. 1923.
- A. Kemp, “Adaptations to life in freshwater for Mioceratodus gregoryi, a lungfish from Redbank Plains, an Eocene locality in southeast Queensland, Australia.” Alcheringa: An Australasian Journal of Palaeontology, 42, 305-310. 2018.
- A. Kemp, “Osteogenesis in the Australian lungfish. Neoceratodus forsteri (Osteichthyes:Dipnoi).” Australian Journal of Zoology. https://doi.org/10.1071/ZO22004. 2022.
- A. Kemp, “The embryological development of the Queensland lungfish, Neoceratodus forsteri (Krefft).” Memoirs of the Queensland Museum. 20, 553-597. 1982.
- A. Kemp, “Ontogeny of the skull of the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi).” Journal of Zoology. 248, 97-137. 1999.
- A. Kemp, “Changes in the freshwater environments of the Australian lungfish, Neoceratodus forsteri, in south east Queensland, and implications for the survival of the species.” Proceedings of the Royal Society of Queensland, 124, 121 – 135. 2020.
- W. L. Kelly, M. Bryden, “A modified differential stain for cartilage and bone in whole mount preparations of mammalian foetuses and small vertebrates.” Stain Technology, 58, 131-134. 1983.
- A. Kemp, “The role of epidermal cilia in development of the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi).” Journal of Morphology, 228, 203-221. 1996.
- A. Kemp, “Marginal tooth bearing bones in the lower jaw of the Recent Australian lungfish, Neoceratodus forsteri (Osteichthyes:Dipnoi).” Journal of Morphology, 225, 345- 355. 1995.
- A. Kemp, “Growth and hard tissue remodelling in the dentition of the Australian lungfish, Neoceratodus forsteri (Osteichthyes: Dipnoi).” Journal of Zoology. 257, 219-235. 2002.
- E. Jarvik, “Basic structure and evolution of vertebrates.” Volume I. Academic Press, New York. 1980.
- F. H. Edgeworth, “On the development of the hypobranchial, branchial and laryngeal muscles of Ceratodus, with a note on the development of the quadrate and epihyal.” Quarterly Journal of Microscopical Science, new series. 67, 325-368. 1923.
- F. H. Edgeworth, “The Cranial Muscles of Vertebrates.” Cambridge: Cambridge University Press. 1935.
- R. H. Denison, “Early Devonian lungfishes from Wyoming, Utah and Idaho.” Fieldiana: Geology, 17, 353 – 413. 1968.
- W. Gross, “Ueber Crossopterygier und Dipnoer aus dem Baltischen Oberdevon im Zusammenhang einer vergliechenden Untersuchung des Porencanalsystems palaozoicher Agnathen und Fische.” Kungliga Svenska Vetenskaps Akademiens Handlingar. 5, 1 – 140. 1956.
- T. J. Challands, et al. “Mandibular musculature constrains brain –endocast disparity between sarcopterygians.” Royal Society Open Science, 7, 200933. http://dx.doi.org/10.1098/rsos.200933. 2020.
- J. D. Pardo, et al. “An exceptionally preserved transitional lungfish from the Lower Permian of Nebraska, USA, and the origin of modern lungfishes.” PLoS ONE 9, e108542. 2014.
- W. E. Bemis, “Feeding systems of living dipnoi: anatomy and function.” Journal of Morphology, supplement 1 , 249-275. 1987.
- W. E. Bemis, G. V. Lauder, “Morphology and function of the feeding apparatus of Lepidosiren paradoxa (Dipnoi).” Journal of Morphology, 187, 81- 108. 1984.
- A. Kemp, “Skull Structure in Post-Paleozoic Lungfish.” Journal of Vertebrate Paleontology, 18, 43-63. 1998.
- A. S. Romer, “The dipnoan cranial roof.” American Journal of Science. 32, 241-256. 1936.
