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 A study of The Lateral-Line Canals System and That Of Lirenzini
Ampullae
And Tubules Of Elasmobranchiate Fishes Of China
中国软骨鱼类的侧线管系统及罗伦瓮和罗伦管系统研究
In Chinese with Detailed English summary
By Yuanting T.Chu & Meng Ching Wen,1980
Page: 130 pages+ 64plates, Hardback, 180x260mm
Price: US$38
We select 73 species of Chinese Elasmobranchiate fishes, having broadly
representative quality, belonging to 46 Genera, 30 Families, 22 Suborders,13
Orders and 2 Subclasses,and make careful observations and investigations
on their lateral-line canals and Lorenzini ampullae and tubules systems.
These two systems are all derived from the skin and have intimate relationships,
but each has its own independent existence and different morphological
modifications and characteristics. We propose to study these two systems
together, with a view that each will be complementary to the other, so
as to make the results obtained more reliable and reasonable. In the lateral-line
canals system, emphases are placed to distribution, route, branching,
curvature and severance of lateral lines, as well as appearance, development,
specialization or degeneration of certain canals. In the system of Lorenzini
ampullae and tubules, particular attentions are paid to appearance and
disappearance, development, differentiation, degeneration, reappearance
and other phenomena of Lorenzini ampullae and tubules in certain species.
Basing on numerous modifications and characters presented by those two
systems in different groups of taxa, we try to trace the intimate interrelationships
among morphology, ecology, classifications and evolution of Elasmobranchiate
fishes of China. Furthermore, we readjust the classification positions
of certain forms and establish some new classificatory groups of taxa.
Utilizing the characters offered by those systems we have prepared synopses
(1) of Families and higher taxa,
(2) of representative Genera of a Family and
(3)representative species of a Genus.
Finally, basing on those rich and reliable characters of these two systems
and at the same time by making references to paleontological work, we
try to find clues of the geological and systematic evolution of Chinese
Elasmobranchiate fishes. By consultation of different schemes of classification
of Elasmobranchiate fishes by different authors, we attempt to present
a scheme of new classification of our own.
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