The Lateral-Line System in the Rio Grande Perch, Cichlasoma cyanoguttatum (Baird and Girard)

Branson, Branley A.

doi:10.2307/2422966

Cited by 15 publications

(19 citation statements)

References 10 publications

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“…As a result, the canal manifested what Moodie (1922) has termed "drain-pipe bones." This occurrence is by no means unusual, since lateral-line canals, either connective tissue or bone, frequently traverse bones via slight grooves or depressions as observed in Ameiurus (Moodie, 1922), Lepomis humilis (Curd, 1959), Centrarchidae (Branson and Moore, 1962), and Cycleptus (Branson, 1962). The canal is forced to return to close proximity of the ossicle in the region of the sense organ.…”

Section: Infraorbital Canal Osteologymentioning

confidence: 93%

“…Allis (1889Allis ( , 1936, Westoll (1937), Pehrson (1940Pehrson ( , 1944, Lekander (1949), and Branson and Moore (1962) considered the neuromasts to exert some evocating force which stimulates lateral-line bones to form. Contrary to this belief is that held by Moodie (1922), De Beer (1937), Moy-Thomas (1941), and Parrington (1948).…”

Section: Manymentioning

confidence: 99%

“…A third concept, proposed by Stensio (1947) and supported by Kapoor (1962), considers the bone to be of composite origin, part stemming from anasmestic forces and part from tropic activities of the neuromasts. Whatever obtains, it can be shown that when the lateral-line system degenerates or vanishes, there is a corresponding reduction or loss of associated bones (Branson and Moore, 1962).…”

Section: Manymentioning

confidence: 99%

“…Stensi6's (1947) reasoning seems to be the most logical explanation in elucidating the neuromast, canal, bone relationships in N. volucellus and N. buchanani. The possibility that the neuromasts stimulate bone development and subsequently degenerate, leaving the bone to form without a canal (Branson and Moore, 1962), cannot be completely disregarded. This contingency, however, does not thoroughly explain the problem because, frequently, portions of the canal in N. volucellus are independent of the bone, suspended in the overlying dermis, and may or may not be encased by bone.…”

Section: Manymentioning

confidence: 99%

“…The canal begins slightly anteroventrad to the nostril, turns ventrad to connect the terminal and second pores with a short tubular segment, proceeds posteriad below the eye, and turns dorsad to outline the general contour of the eye. Posterodorsal to the eye, it once again bends sharply caudad, now termed the "postocular commissure" (Branson and Moore, 1962), and continues as a straight line making connection with the supratemporal canal and cephalic lateralis. The postocular commissure has been variously termed by other authors: the "lateral canal" by Hubbs and Cannon (1935), the "cephalic lateralis" by Branson (1961), and as part of the infraorbital canal by Illick (1956).…”

Section: Observationsmentioning

confidence: 99%

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The Infraorbital Canal, Its Lateral-Line Ossicles and Neuromasts, in the Minnows Notropis volucellus and N. buchanani

Reno¹

1966

Copeia

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. American Society of Ichthyologists and Herpetologists (ASIH)is collaborating with JSTOR to digitize, preserve and extend access to Copeia.To determine the role of the neuromast in bone formation, histological and osteological studies were made of the infraorbital canal in Notropis volucellus and N. buchanani. Special emphasis was placed on the histological structure of the superficial and canal sense organs.The infraorbital canal in N. volucellus is complete or incomplete, while that in N. buchanani is absent or rudimentary. The number of infraorbital ossicles in N. buchanani has been reduced from five, as in N. volucellus, to two or three. In both species the sustentacular cells of the neuromasts extend upward to surround the sense cells. The sense cells are strongly polarized and apically bear two "sense hairs" each. In N. volucellus a cellular enlargement in the innervating nerve of the canal neuromast was described. It was concluded that lateral-line bones are of composite origin, part stemming from anasmestic forces and part from the tropic activities of the neuromast.

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Section: Infraorbital Canal Osteologymentioning

confidence: 93%

Section: Manymentioning

confidence: 99%

Section: Manymentioning

confidence: 99%

Section: Manymentioning

confidence: 99%

Section: Observationsmentioning

confidence: 99%

See 3 more Smart Citations

The Infraorbital Canal, Its Lateral-Line Ossicles and Neuromasts, in the Minnows Notropis volucellus and N. buchanani

Reno¹

1966

Copeia

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Peripheral configuration and central projections of the lateral line system in Astronotus ocellatus (cichlidae): A nonelectroreceptive teleost

Meredith

1984

J of Comparative Neurology

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The lateral line system of Astronotus ocellatus comprises one trunk canal, one tail canal, and three head canals. The sensory receptors on the head are innervated by rami of the dorsal anterior, ventral anterior, and posterior lateral line nerves, and those along the trunk and tail by rami of the posterior lateral line nerve. The peripheral configuration of lateral line canals and nerves was examined in whole mount preparations, the central connections of restricted groups of endorgans studied using HRP and degeneration methods, and the neuronal morphology and cytoarchitecture of the lateralis region investigated with Nissl, silver, and Golgi methods. Neurons of the lateralis cell column are diffusely arrayed and of variable morphology. They are oriented primarily in the transverse plane and, with the exception of a dorsal lamina of large multipolar cells, are not organized into zones. Lateralis fibers bifurcate on entering the brainstem, course in lateral tracts, and give off medially directed collaterals to terminate in the ipsilateral nucleus medialis and nucleus caudalis. In addition, fibers terminate in the eminentia granularis of the cerebellum, but only fibers supplying endorgans in the head canals penetrate the granule cell zone of the cerebellar corpus. Fibers supplying sense organs in adjacent canals overlap in their central endings, whereas fibers of distantly separated receptors do not overlap. The rami supplying trunk and tail canal organs do not project as far rostrally in the central neuropil as do the other rami. Endings of posterior lateral line fibers lie dorsal to those of the anterior lateral line nerves, and some lateralis fibers terminate within the confines of the magnocellular, descending, and posterior nuclei of the octavus column. Although there is spatial order to the lateralis projections, there is no clear somatotopic organization in the lateralis region.

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Neuromast morphology and lateral line trunk canal ontogeny in two species of cichlids: An SEM study

Webb

1989

Journal of Morphology

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A study of neuromast ontogeny and lateral line canal formation in Oreochromis aureus and Cichlasoma nigrofasciatum reveals the existence of two classes of neuromasts: those that arise just before hatching (presumptive canal neuromasts, dorsal superficial neuromasts, gap neuromasts, and caudal fin neuromasts) and pairs of neuromasts that arise on each lateral line scale lateral to each canal segment at the same time as canal formation. In the anterior trunk canal segment, each presumptive canal neuromast is accompanied by a dorsoventrally oriented superficial neuromast forming an orthogonal neuromast pair. It is suggested that each of these dorsoventrally oriented superficial neuromasts is homologous to the transverse superficial neuromast row described by Münz (Zoomorphology 93:73-86, '79) in other cichlids. It is further suggested that the longitudinal lines described by Münz (Zoomorphology 93:73-86, '79) are derived from the pair of superficial neuromasts that arise during canal formation. Distinct changes in neuromast topography are documented. Neuromast formation, scale formation, and lateral line canal formation are three distinct and sequential processes. The distribution of neuromasts is correlated with myomere configuration; there is always one presumptive canal neuromast on each myomere. A single scale forms beneath each presumptive canal neuromast. Canal segment formation is initiated with the enclosure of each presumptive canal neuromast by an epithelial bridge which later ossifies. The distinction of these three processes raises questions as to the causal relationships among them.

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The Lateral-Line System in the Rio Grande Perch, Cichlasoma cyanoguttatum (Baird and Girard)

Cited by 15 publications

References 10 publications

The Infraorbital Canal, Its Lateral-Line Ossicles and Neuromasts, in the Minnows Notropis volucellus and N. buchanani

The Infraorbital Canal, Its Lateral-Line Ossicles and Neuromasts, in the Minnows Notropis volucellus and N. buchanani

Peripheral configuration and central projections of the lateral line system in Astronotus ocellatus (cichlidae): A nonelectroreceptive teleost

Neuromast morphology and lateral line trunk canal ontogeny in two species of cichlids: An SEM study

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