tropicus การใช้

The single described species " S . tropicus " is found in west Malaysia.
At the end of this implausible story, both heroes are inexplicably returned to Earth, as the capital city of Tropicus is destroyed by a volcanic eruption.
My understanding of the origin of the Greek word'tropos'is that it similar to the late Latin term'tropicus'whose origin indicates a turning movement, but no mixing.
The 1913 Century Dictionary online shows the origin of the English word'tropic'from the late Latin ( LL )'tropicus', which meant'of, or pertaining to the solstice '.
""'Bulinus tropicus " "'is a species of a tropical freshwater snail with a sinistral shell, an aquatic gastropod mollusk in the family Planorbidae, the ramshorn snails and their allies.