A new genus and new species of trematode (Plagiorchioidea: Macroderoididae) from Lepisosteus
As explained above, Amia and Lepisosteus
were used as outgroups; the descriptions given in the literature concerning numerous other basal actinopterygians, either fossil or living, were also taken into account in the polarization of the characters.
In zoology, names above family-group level are not typified, but the same exclusivity could be conveyed by use of a taxon at the same rank as Halecostomi for Lepisosteus
As discussed below, only one museum specimen from this locality apparently still remains (USNM 32373 [see below]), and this has been reidentified as Lepisosteus
platostomus, a species not reported by Hay.
Evolution of the feeding mechanism in primitive actinopterygian fishes: a functional anatomical analysis of Polypterus, Lepisosteus
osseus: ANSP 107961, 2 (alc); ANSP 172630, 1 (alc); MNCN 246557, 1 (cands).
1 Erythrocyte CA 9e-33 1e-32 Lepisosteus
This correlation of bucephalosis with lower salinity is probably due to the presumed definitive and second intermediate hosts (the true gar, Lepisosteus
and mullet, Mugil cephalus) preference for lower salinity waters.
Por su parte, los tabasquenos --en cuyos rios abunda la especie Lepisosteus
tropico--, los consideran un manjar por su carne casi carente de espinas y han hecho del tamal de pejelagarto uno de los platillos tipicos de la cocina regional.
A series of fortuitous events allowed us to serendipitously determine the exact growth in size of an individual longnose gar, Lepisosteus
osseus, from Lake Texoma, Oklahoma-Texas, from the day the egg was spawned and fertilized in the wild, until 166 days later when the juvenile, clearly of recruited size, was recovered from an outdoor ornamental pond where it had been housed throughout the summer-autumn growing season.
Hay registros fosiles de Lepisosteidos en Europa, Asia y America, pero solo en America existen especies vivientes, estando distribuidas cinco de ellas en Norteamerica desde el sur de Canada hasta el norte de Mexico (Atractosteus spatula, Lepisosteus
3 4 5 Lepisosteus
osseus - - - - - Campostoma anomalum 7.