It is listed in the " Identification Atlas of the Vespidae of the Northeastern Nearctic Region " as " species B ".
42.
It has a Holarctic distribution extending into the Indomalayan region, although its presence in the Nearctic may be due to human assisted introduction.
43.
""'Notiophilus aquaticus " "'is a species of ground beetle native to the Palearctic and the Nearctic.
44.
Often, the male genitalia are used to characterize the Nearctic and Palearctic forms of " Dolichovespula " " norwegica ".
45.
More recently the Nearctic population has been proposed as a separate species due to sculptural differences in the quenns between the Nearctic and Palearctic populations.
46.
More recently the Nearctic population has been proposed as a separate species due to sculptural differences in the quenns between the Nearctic and Palearctic populations.
47.
In the context of freshwater fish biogeography, the Verde Atoyac basin is considered the southern extent of the Nearctic realm on the Pacific coast.
48.
Its fauna and flora are distinct from the Nearctic ( which includes most of North America ) because of the long separation of the two continents.
49.
The big pike species are native to the Palearctic and Nearctic ecozones, ranging across northern North America and from Western Europe to Siberia in Eurasia.
50.
The eventual triumph of the Nearctic migrants was ultimately based on geography, which played into the hands of the northern invaders in two crucial respects.
