Results 151 to 160 of about 1,246 (174)
Some of the next articles are maybe not open access.
Journal of Fish Biology, 2021
AbstractLarval attachment organs (LAOs) are unicellular or multicellular organs that allow larvae to adhere to a substrate before yolk‐sac absorption and the free‐swimming stage. This study documents the LAO of tropical gar, Atractosteus tropicus, using a combination of scanning electron microscopy and light microscopy.
Amanda K. Pinion +5 more
openaire +2 more sources
AbstractLarval attachment organs (LAOs) are unicellular or multicellular organs that allow larvae to adhere to a substrate before yolk‐sac absorption and the free‐swimming stage. This study documents the LAO of tropical gar, Atractosteus tropicus, using a combination of scanning electron microscopy and light microscopy.
Amanda K. Pinion +5 more
openaire +2 more sources
Family Lepisosteida (Gars) as Living Fossils
1984Gars (Fig. 1). are primitive neopterygian fishes with elongate snout, plicidentine teeth, opisthocoelous vertebrae, heavy dermal bone retaining ganoid ornamentation, ganoid scales, a semiheterocercal tail, and fulcral scales on the median fins. The elongate snout is an ontogenetic product of ethmoid elongation and is correlated with many of the ...
E. O. Wiley, Hans-Peter Schultze
openaire +1 more source
Studies on the eyes of gars (Lepisosteidae) with special reference to the tapetum lucidum
Canadian Journal of Zoology, 1973Eyes of gars (Lepisosteus) possess a yellow tapetum lucidum which is located in processes of the pigment epithelium. A yellow reflecting pigment is involved, enclosed in tapetal spheres each about 240 nm in diameter. Retinomotor movements take place: in darkness (or dim light) the black retinal pigment retracts, exposing the tapetum, and the rods ...
J A, Nicol, H J, Arnott
openaire +2 more sources
A propos du genre Paralepidosteus (Ginglymodi, Lepisosteidae) du Crétacé gondwanien
2001Les auteurs justifient le maintien du genre †Paralepidosteus pour l’espèce †P. africanus du Santonien du Damergou au Niger. Ils proposent de rapporter à ce genre, mais cependant avec quelque doute (?†Paralepidosteus sp.) et en justifiant leur position, des spécimens du Maastrichtien de Bolivie, du Brésil et d’Inde ainsi que l’espèce †P. praecursor de l’
Gayet, Mireille, Meunier, François J.
openaire +1 more source
Published as part of Cicimurri, David J., Ebersole, Jun A., Stringer, Gary L., Starnes, James E. & Phillips, George E., 2025, Late Oligocene fishes (Chondrichthyes and Osteichthyes) from the Catahoula Formation in Wayne County, Mississippi, USA, pp.
Cicimurri, David J. +4 more
openaire +1 more source
Cicimurri, David J. +4 more
openaire +1 more source
Copeia, 2014
The lower jaw of Lepisosteus osseus has been described as containing a U-shaped cartilaginous structure identified as a detached portion of Meckel's cartilage. We investigated this structure through study of a growth series of L. osseus, including cleared-and-stained specimens and histological preparations.
Hilton, E. J. +3 more
openaire +1 more source
The lower jaw of Lepisosteus osseus has been described as containing a U-shaped cartilaginous structure identified as a detached portion of Meckel's cartilage. We investigated this structure through study of a growth series of L. osseus, including cleared-and-stained specimens and histological preparations.
Hilton, E. J. +3 more
openaire +1 more source
Copeia, 1973
BEAMISH, F. W. H. 1964. Respiration in fishes with special emphasis on standard oxygen consumption. Canad. J. Zool. 42:355-66. BOHLKE, JAMES, E. 1966. A new name for the actyloscopidae. I also appreciate the Dactyloscopid fish, Cokeridia crossota Meek and Hildebrand 1928. Copeia 1966:879-880. DANOIS, Y. 1958. Systeme Muscellaire. In: P.
Loren G. Hill +2 more
openaire +1 more source
BEAMISH, F. W. H. 1964. Respiration in fishes with special emphasis on standard oxygen consumption. Canad. J. Zool. 42:355-66. BOHLKE, JAMES, E. 1966. A new name for the actyloscopidae. I also appreciate the Dactyloscopid fish, Cokeridia crossota Meek and Hildebrand 1928. Copeia 1966:879-880. DANOIS, Y. 1958. Systeme Muscellaire. In: P.
Loren G. Hill +2 more
openaire +1 more source
Conservation genetics of the tropical gar (Atractosteus tropicus, Lepisosteidae)
Conservation Genetics, 2023Maura Palacios Mejia +10 more
openaire +1 more source
The Southwestern Naturalist, 2004
Abstract The spotted gar, Lepisosteus oculatus, population in the Lake Pontchartrain estuary in southeastern Louisiana was sampled monthly to characterize its reproduction, age, and growth from November 1998 through October 1999. Males ranged from 285 to 568 mm standard length (SL) and 0 to 8 years; females ranged from 395 to 606 mm SL and 0 to 10 ...
openaire +1 more source
Abstract The spotted gar, Lepisosteus oculatus, population in the Lake Pontchartrain estuary in southeastern Louisiana was sampled monthly to characterize its reproduction, age, and growth from November 1998 through October 1999. Males ranged from 285 to 568 mm standard length (SL) and 0 to 8 years; females ranged from 395 to 606 mm SL and 0 to 10 ...
openaire +1 more source
The Phylogeny and Biogeography of Fossil and Recent Gars (Actinopterygii: Lepisosteidae).
Systematic Zoology, 1978Max K. Hecht, E. O. Wiley
openaire +2 more sources