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Les Squalidae (Euselachii) miocènes des environs d'Avignon (Vaucluse)
, 1972 Les gisements étudiés sont principalement ceux de Caumont et de Bonpas (Vaucluse ). Ils s'étagent du Burdigalien à l'Helvétien inférieur. Le matériel fossile est constitué par des dents et quelquefois des denticules cutanés. Leur étude systématique montre que la plupart des espèces peuvent être rattachées à des espèces actuelles ou en sont les ancêtres.
Ledoux, Jean-Claude
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Reproductive biology of the greeneye spurdog Squalus chloroculus (Squaliformes, Squalidae)
Journal of Fish Biology, 2015The reproduction of the greeneye spurdog Squalus chloroculus was studied based on animals caught in the multispecies and multi‐gear southern and eastern scalefish and shark fishery on the upper continental slope off southern Australia. One hundred and ninety‐nine females (502–990 mm, total length, LT) and 189 males (515–810 mm LT) were examined.
B E A, Rochowski +3 more
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Review of the Centrophorus sharks (Elasmodranchii, Squalidae) of the Eastern Atlantic
1989Results on systematics of the genus Centrophorus from the eastern Atlantic are yielded from an extensive study on body and skull morphometrics, dermal denticles, vertebral counting and fin rays. Our conclusions pointed out the validity of the following species inhabiting the area: C. squamosus, C. granulosus, C. lusitanicus and C. niaukang.
Munoz-Chapuli, Ramon, Ramos, Fernando
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Russian Journal of Marine Biology, 2000
Salinity adaptations of the gastropodsLittorina mandshurica andL. squalida were studied at different stages of their life cycles.L. mandshurica exhibited a higher degree of adaptation to variations in salinity thanL. squalida at all developmental stages. Egg masses did not protect embryos from desalination; the larvae inside the egg masses were capable
L. M. Yaroslavtseva +2 more
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Salinity adaptations of the gastropodsLittorina mandshurica andL. squalida were studied at different stages of their life cycles.L. mandshurica exhibited a higher degree of adaptation to variations in salinity thanL. squalida at all developmental stages. Egg masses did not protect embryos from desalination; the larvae inside the egg masses were capable
L. M. Yaroslavtseva +2 more
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REPRODUCTIVE PATTERN OF THE SQUALID CALLISTA MEGAPITARIA SQUALIDA FROM NORTHWESTERN MEXICO
Journal of Shellfish Research, 2006Abstract The annual reproductive cycle of the squalid callista Megapitaria squalida living in the Ojo de Liebre lagoon was analyzed from January to December 2001. The reproductive activity was analyzed qualitatively (through histological analysis), defining five gonad development stages (undifferentiated, developing, ripe, spawning and spent).
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