The morphology of the pit organs and lateral line canal neuromasts of Mustelus antarcticus (Chondrichthyes: Triakidae)

  title={The morphology of the pit organs and lateral line canal neuromasts of Mustelus antarcticus (Chondrichthyes: Triakidae)},
  author={Meredith B. Peach and Greg W. Rouse},
  journal={Journal of the Marine Biological Association of the United Kingdom},
  pages={155 - 162}
  • M. PeachG. Rouse
  • Published 1 February 2000
  • Medicine, Biology
  • Journal of the Marine Biological Association of the United Kingdom
The pit organs (free neuromasts) of sharks are part of the lateral line sensory system, but there is still confusion about their exact morphology and function(s). This is partly because of reported physiological differences between the pit organs and the lateral line canal neuromasts, and partly because the morphology of pit organs has not been adequately documented. To compare their morphology, the pit organs and canal neuromasts of the gummy shark Mustelus antarcticus (Chondrichthyes… 

Inter‐ and intraspecific variation in the distribution and number of pit organs (free neuromasts) of sharks and rays

  • M. Peach
  • Environmental Science, Biology
    Journal of morphology
  • 2003
All of the species examined here had few pit organs compared to the pelagic sharks previously documented, but it is not clear whether this is due to ecological or phylogenetic causes.

Spatial Distribution and Morphological Characteristics of the Trunk Lateral Line Neuromasts of the Sea Bass (Dicentrarchus labrax, L.; Teleostei, Serranidae)

The morphology and spatial distribution of the different types of neuromasts encountered on the trunk lateral line of the sea bass were examined using scanning electron microscopy and a significant number of hair bundles do not follow the two-directional polarity pattern usually described.

The comparative morphology of pit organs in elasmobranchs

The morphology of pit organs was investigated by scanning electron microscopy in six shark and three ray species and contained typical lateral line hair cells with apical stereovilli of different lengths arranged in an “organ‐pipe” configuration.

Quantitative Aspects of the Spatial Distribution and Morphological Characteristics of the Sea Bass (Dicentrarchus labrax L.; Teleostei, Serranidae) Trunk Lateral Line Neuromasts

The results presented herein report quantitative data relative to the distribution and morphological characteristics of both types of neuromasts encountered on the trunk lateral line of the sea bass, establishing the first full description of the trunkateral line of sea bass.

Phylogenetic trends in the abundance and distribution of pit organs of elasmobranchs

To investigate phylogenetic trends in the distribution and abundance of pit organs, 12 relevant morphological characters were added to an existing matrix of morphological data, which was re-analysed using cladistic parsimony methods and character transformations were traced onto the most parsimonious phylogenetic trees.

The lateral line canal sensory organs of the Epaulette Shark (Hemiscyllium ocellatum)

Examination of the lateral line canals in the Epaulette Shark reveals a much more differentiated sensory system than previously reported from any elasmobranch. Two main types of lateral line canals

A review of the sensory biology of chimaeroid fishes (Chondrichthyes; Holocephali)

  • T. J. Lisney
  • Environmental Science
    Reviews in Fish Biology and Fisheries
  • 2010
A survey of the existing literature on the major senses in chimaeroids is provided in order to stimulate and identify areas for future research to help protect and management of these fascinating fishes.

Morphological Diversity, Development, and Evolution of the Mechanosensory Lateral Line System

The pattern and timing of lateral line development is essential for an appreciation of changes in lateral line function and thus its behavioral roles through a fish’s life history, and an appreciation for morphological diversity among species is likely to assist in the interpretation of developmental patterns.

The Lateral Line in Fish: Structure, Function, and Role in Behavior

The role of the lateral line in the feeding, defensive, schooling, reproductive, and parental behavior of fish is considered in detail, and the responses of fish to the water current, their orientation, and ways of hydrodynamic camouflage are reviewed.

Ultrastructure of the external sensory apparatus of Gyrodactylus gasterostei Gläser, 1974

This study suggests that certain sensilla, presented for the first time in Gyrodactylus gasterostei, may serve as chemoreceptors and mechanoreceptor and possible photoreceptors, and improve current understanding of the receptors that GyrodACTylus species employ to interpret both their host and ambient environments.



Morphology, distribution and innervation of the lateral-line receptors of the Florida gar, Lepisosteus platyrhincus.

Analysis of the roots of these nerves and review of the embryonic origin of their ganglia as well as comparisons with cranial nerves in other anamniotes suggest that the anterior and posterior lateral-line nerves of gars may represent the fusion of four to five separate lateral- line nerves at some stage in vertebrate phylogeny.

Morphology of the mechanosensory lateral line system in the Atlantic Stingray, Dasyatissabina: The mechanotactile hypothesis

The Mechanotactile Hypothesis is proposed, which states that the ventral nonpored canals and vesicles of Savi function as specialized tactile mechanoreceptors that facilitate the detection and capture of small benthic invertebrate prey.

Fine structure of the ordinary lateral line organ. I. The neuromast of lamprey, Entosphenus japonicus.

  • Y. Yamada
  • Biology
    Journal of ultrastructure research
  • 1973

VI.—On the Lateral Sense Organs of Elasmobranchs. II. The Sensory Canals of the Common Skate (Raia batis)

The skate will be more easily obtained and kept under observation than the rays, when physiologists eventually direct their attention to the lateral sense organs of Elasmobranchs, because the sensory canals are more typical than in the torpedoes and the whip and sting rays.

VISION AND SENSORY PHYSIOLOGY The lateral line systems of three deep‐sea fish

The distribution and ultrastructure of the lateral line systems in three taxonomically dispersed deep-sea fish are described and possible functional implications of all the neuromast types described are compared and discussed.

Ampullary sense organs, peripheral, central and behavioral electroreception in chimeras (Hydrolagus, Holocephali, Chondrichthyes).

A specialized sense modality for electroreception, similar to that in elasmobranchs and most other groups of nonteleost fishes, except for Myxini and Neopterygii (holosteans), is present in the subclass Holocephali and is supported that this modality and its central as well as peripheral apparatus arose early in the evolution of vertebrates.

Ultrastructure of the lateral-line sense organs of the ratfish, Chimaera monstrosa.

The ultrastructure of the lateral-line neuromasts in the ratfish, Chimaera monstrosa, which consist of sensory, supporting, basal and mantle cells, and the accessory cells are similar to those in the acoustico-lateralis organs of other aquatic vertebrates.

Quantitative analyses of postembryonic hair cell addition in the otolithic endorgans of the inner ear of the european hake, merluccius merluccius (gadiformes, teleostei)

It is demonstrated that extensive proliferation occurs in all three otolithic endorgans of the ears in a fish and that such proliferation continues for virtually the whole life of the animal.

The functional morphology of stereociliary bundles on turtle cochlear hair cells

The structure and function of the lateral line system in larval Xenopus laevis.

Each lateral line organ in Xenopus laevis larvae contains about two dozen receptor cells, which have a plane of maximum sensitivity to stimulation and respond in a phasic-tonic manner to vibrational stimuli and water currents.