Morphology and function of the feeding apparatus of the lungfish, Lepidosiren paradoxa (Dipnoi)

  title={Morphology and function of the feeding apparatus of the lungfish, Lepidosiren paradoxa (Dipnoi)},
  author={William E. Bemis and George V. Lauder},
  journal={Journal of Morphology},
The feeding mechanism of the South American lungfish, Lepidosiren paradoxa retains many primitive teleostome characteristics. In particular, the process of initial prey capture shares four salient functional features with other primitive vertebrates: (1) prey capture by suction feeding, (2) cranial elevation at the cranio‐vertebral joint during the mouth opening phase of the strike, (3) the hyoid apparatus plays a major role in mediating expansion of the oral cavity and is one biomechanical… 

Morphology and behavior of the feeding apparatus in Cryptobranchus alleganiensis (Amphibia: Caudata)

Cine and high‐speed videographic analyses of feeding in Cryptobranchus alleganiensis demonstrate that prey are captured by either inertial suction or a strike combined with suction. Movements of

The biology of the australian lungfish, Neoceratodus forsteri (krefft 1870)

It is concluded that, despite locally abundant populations of lungfish in rivers of southeast Queensland, the species is still at risk of extinction from a number of natural or artificial causes.

Functional morphology of the feeding mechanism in aquatic ambystomatid salamanders

This study addresses four questions in vertebrate functional morphology through a study of aquatic prey capture in ambystomatid salamanders: (1) How does the feeding mechanism of aquatic salamanders

Convergent evolution of jaw-opening muscles in lepidosirenid lungfishes and tetrapods

It is concluded that the mandibular depressor of lepidosirenids has evolved independently from the functionally equivalent muscle of amphibians.

Feeding mechanism of Epibulus insidiator (Labridae; Teleostei): Evolution of a novel functional system

Electromyography and high‐speed cinematography indicate that patterns of muscle activity during feeding and the kinematic movements of opercular rotation and cranial elevation produce a primitive pattern of force and motion input.

Cephalic muscle development in the Australian lungfish, Neoceratodus forsteri

A detailed study of cephalic muscle development in the Australian lungfish, Neoceratodus forsteri, confirms that extant lungfishes are neotenic and have been strongly influenced via paedomorphosis during their evolutionary history.

Variability of the fast suction feeding process in Astatotilapia elegans (Teleostei: Cichlidae): a hypothesis of peripheral feedback control

Movement analysis of the ‘volume suction’ feeding type in Astarotilapia elegans suggests the existence of an inhibiting peripheral feedback control on the fast movements of the head parts, apparently

Feeding systems of living dipnoi: Anatomy and function

Three major morphological features–‐an autostylic jaw suspension, tooth plates, and a reduced but highly mobile branchial apparatus–‐largely determine the special cranial morphology of living dipnoans and are directly related to these feeding functions.

The rapid evolution of lungfish durophagy

Innovations relating to the consumption of hard prey are implicated in ecological shifts in marine ecosystems as early as the mid-Paleozoic. Lungfishes represent the first and longest-ranging lineage



Functional and morphological bases of trophic specialization in sunfishes (Teleostei, centrarchidae)

  • G. Lauder
  • Biology, Medicine
    Journal of morphology
  • 1983
The gross morphology and electrical activity of the muscles of the pharyngeal apparatus of centrarchid sunfishes (Lepomis) are analyzed within a monophyletic clade containing species specialized for

Evolution of the feeding mechanism in primitive actionopterygian fishes: A functional anatomical analysis of Polypterus, Lepisosteus, and Amia

The comparative functional anatomy of feeding in Polypterus senegalus, Lepisosteus oculatus, and Amia calva, three primitive actinopterygian fishes, was studied by high‐speed cinematography (200

Patterns of Evolution in the Feeding Mechanism of Actinopterygian Fishes

The major feature of the evolution of the actinopterygian feeding mechanism is the increase in structural complexity in both the pharyngeal and front jaws.

The Role of the Hyoid Apparatus in the Feeding Mechanism of the Coelacanth Latimeria chalumnae

This work has suggested that posterodorsal hyoid movement accompanied by extension of the otico-occipital portion of the cranium on the vertebral column mediates mandibular depression in the living coelacanth Latimeria chalumnae.

Functional design and evolution of the pharyngeal jaw apparatus in euteleostean fishes

Functional and structural patterns in the pharyngeal jaw apparatus ofeuteleostean fishes are described and analysed as a case study of the transformation of a complex biological design. The

Morphology and growth of lepidosirenid lungfish tooth plates (Pisces: Dipnoi)

  • W. Bemis
  • Materials Science
    Journal of morphology
  • 1984
The structure of the tooth plates of Protopterus and Lepidosiren was investigated to determine the causes and consequences of postlarval shape change and microhardness measurements show that trabecular dentine is comparable in hardness to mammalian dentine, whereas the petrodentine isparable to enamel.

XVI.—On the Development of the Cranial Muscles in Protopterus and Lepidosiren

The cranial structures of Protopterus and Lepidosiren are now fairly well known, and especially owing to the investigations of Bischoff, Bridge, Fürbringer, Göppert, Humphry, Hyrtl, Jaquet, Luther,

A functional analysis of the aquatic and aerial respiratory movements of an African lungfish, Protopterus aethiopicus, with reference to the evolution of the lung-ventilation mechanism in vertebrates.

  • B. Mcmahon
  • Environmental Science
    The Journal of experimental biology
  • 1969
The evidence suggests that the air-breathing mechanism of the tetrapods was powered by a buccal force-pump mechanism which evolved directly from the aquatic system, and the evolution of a new mechanism for lung ventilation in the prototetrapods is considered unnecessary.

Dipnoan (lungfish) skulls and the relationships of the group: a study based on new species from the Devonian of Australia

Four new species of dipnoan fishes (lungfishes) are described from the Frasnian of Western Australia: Griphognathus whitei, Chirodipterus australis, C. paddyensis and Holodipterus gogoensis. These

Paedomorphosis and the evolution of the Dipnoi

The data suggest that paedomorphosis played a pervasive role in the evolution of lungfishes and give further evidence for the evolutionary importance of heterochrony.