The state's most important rivers are the Missouri, rising in southwest Montana and flowing north and then east across the state, and the Yellowstone, which crosses southeastern Montana to join the Missouri in North Dakota near the Montana border.
Distribution in South Africa. Hoverflies can be found all over the country between the sea-shores and the mountains. In total, there are at least 180 species recorded from South Africa. The number of species declines from the northeast to the southwest. However, some species have only or predominately been found in the Western Cape.
Although Pear Whelks, Busycotypus spiratus, are seldom found on Sunset Beach, I am posting photos at the top of this whelk webpage because I accidentally omitted them. Some have a protruding apex while others have a flat, squished-looking one as in the specimen below. Their egg cases are found on Sunset Beach. Newborn Pear Whelks differ significantly from the newborn Knobbed Whelks shown further down on this webpage. Pear Whelks, Busycotypus spiratus.