Some evidence for the ampullary organs in the European cave salamander Proteus anguinus (Urodela, Amphibia)

  title={Some evidence for the ampullary organs in the European cave salamander Proteus anguinus (Urodela, Amphibia)},
  author={Lili Isteni{\vc} and Boris Bulog},
  journal={Cell and Tissue Research},
SummaryThe multicellular epithelial organs in Proteus anguinus, which Bugnion (1873) assumed to be developing neuromasts, have been analyzed by lightand electron-microscopy. Their fundamental structure consists of single ampullae with sensory and accessory cells with apical parts that extend into the pit of the ampulla, and of a short jelly-filled canal connecting the ampulla pit with the surface of the skin. The organs are located intra-epithelially and are supported by a tiny dermal papilla… 

Larval electroreceptors in the epidermis of mormyrid fish: I. Tuberous organs of type A and B

Two types of larval electroreceptors, type A and B, are described in the epidermis of the head of larvae of three mormyrid species, Campylomormyrus cassaicus, Mormyrus rume proboscirostris and Pollimyrus isidori, bred in captivity, and the functional role of two tuberous electroreceptor types is examined.

Morphological Characteristics of the Lateral Line Receptors of Hynobius leechii (Urodela: Hynobiidae)

This comparison of lateral line receptors between larval and adult salamanders is the first of its kind for salamander that utilize external fertilization and, for the first time, two different morphologies of the pit organ in urodeles are described.

End buds: non-ampullary electroreceptors in adult lampreys

Experimental anatomical and physiological studies reported here demonstrate that the epidermal end buds are the electroreceptors of adult lampreys, indicating that the low-frequency sensitive electrosensory system of lampreys is homologous with those of non-teleost fishes and amphibians.

Morphology of Electroreceptive Sensory Organs

The morphology of electroreceptive organs in lampreys and their larvae, different fishes, aquatic amphibians, and monotreme mammals is described and only afferent nerve endings have been identified.

Electroreception in early vertebrates: survey, evidence and new information

F fossil data does not support the hypothesis that vertebrate hard tissues initially evolved to shield electroreceptors, but specialized electroreceptor systems, including elaborated ‘pore group’ pits in Devonian lungfish and rostral organs in the earliest coelacanths, show that electroreception may have had an important role in niche specialization in early vertebrates.

Oviparity, viviparity or plasticity in reproductive mode of the olm Proteus anguinus: an epic misunderstanding caused by prey regurgitation?

Cave animals are biological models of fast evolutionary change induced by transition to extreme subterranean environments. But their concealed lifestyle makes it inherently difficult to study

Sex recognition in surface and cave dwelling male atlantic mollies Poecilia mexicana (Poeciliidae, Teleostei)

Different preferences in large and small males to stay near a female or a male stimulus fish probably reflect differences concerning a trade-off between sexual and aggressive behaviour.

Imperfect signal transmission and female mate choice in surface- and cave-dwelling Atlantic mollies, Poecilia mexicana (Poeciliidae, Teleostei)

These findings suggest that even in an apparently little cave-adapted, presumed young cave-dweller, strong directional selection works on the non-visual sensory properties to compensate for the absence of visual communication.

Electric shock causes a fear-like persistent behavioral response in the nematode Caenorhabditis elegans

Novel persistent behavioral responses caused by electric stimuli in the nematode Caenorhabditis elegans are reported, suggesting that the animal’s response to electric shock may express a form of emotion, such as fear.



The lateral line system in larvalIchthyophis (Amphibia: Gymnophiona)

The sunken neuromasts of theIchthyophis lateral line system may parallel the possible evolutionary development of pit organs from normal neuromast groups, and it is suggested that they function as electroreceptors.

The fine structure of ampullary electric receptors in Amiurus

  • A. M. Mullinger
  • Biology
    Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1964
The small pit-organs of Amiurus have been included in the group of ampullary lateral-line organs and are thought to be electric receptors and not mechano-receptors; thus they can be distinguished from all other types of acoustico-lateralis organs of vertebrates.

The ultrastructure of lateral line sense organs in the juvenile salamander Ambystoma mexicanum

Lateral line organs in young salamanders of the species Ambystoma mexicanum were investigated with scanning and transmission electron microscopy and two types of nerve endings are seen: afferent, and less commonly, efferent vesiculated ones.

Die Fahrenholzschen Organe der Dipnoi und Brachiopterygii

  • W. Pfeiffer
  • Art
    Zeitschrift für Zellforschung und Mikroskopische Anatomie
  • 2004
Summary1.The skin, mainly the mucus cells, the superficial neuromasts, the taste buds, and the organs of Fahrenholz were studied by light microscopy in all recent genera of the Dipnoi and the

Ultrastructure of the ampullary electroreceptors in lungfish and brachiopterygii

Electron microscopy shows that the electroreceptors of Protopterus dolloi (Dipnoi) and Calamoichthys calabaricus (Brachiopterygii) are very similar to the known ampullary electroreception of other primitive fish groups, but with one difference: at the apical surface of the receptor cells, instead of a kinocilium, a club-shaped protrusion is found.


Electron microscopic study of the developing lateral‐line organ in the embryo of the newt, Triturus pyrrhogaster

  • A. Sato
  • Biology
    The Anatomical record
  • 1976
The morphological sequence of events occurring in the development of the lateral‐line organ was investigated in the embryo of the newt, Triturus pyrrhogaster, by means of electron microscopy. Six

The pattern of lateral-line afferents in urodeles

The organization of posterior and anterior afferents of the lateralline system was studied in several species of urodeles by means of transganglionic transport of horseradish peroxidase and it is suggested thatAfferents to hair cells displaying one type of polarity form together one bundle, but those contacting hair cells polarized in the opposite way form the second ventral bundle of one lateral-line branch.

Ultrastructure of synapses in the lateral line canal organ.

The ultrastructure of afferent and efferent synapses on hair cells in the lateral line canal organ of hair cells of the fish Lota lota was studied, utilizing various fixation and staining techniques.

Anatomy of the Specialized Lateral Line Organs of Electroreception

Cyclostomes, fish and amphibians are provided with particular epidermal sense organs, which form the lateral-line component of the acoustico-lateralis system of aquatic lower vertebrates. According