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Definition of roseline shark
roseline shark
Plural:roseline sharks
• noun
1
A colorful freshwater cyprinid fish native to the fast-flowing hill streams of the Western Ghats in India, distinguished by its torpedo-shaped body, a prominent red stripe extending from its snout to its midsection, and a distinct black lateral line.
Example
"The aquarium hobbyist added a small school of roseline sharks to the planted community tank to introduce a vibrant splash of color."
Word Nuance & Usage
Despite its name, the roseline shark is a freshwater cyprinid (barb) and not a true cartilaginous shark; the term 'shark' is simply an aquarium trade descriptor for its streamlined body.
Cite this Entry
Wordmom. (2026). Definition of Roseline shark. In Wordmom Dictionary. Retrieved Oct 19, 2026, from https://wordmom.com/dictionary/roseline%20shark