The story
Like an X-ray image, the fish's transparent skin allows the bones to be seen.
Etymology from Wiktionary, CC BY-SA 4.0.
X-ray tetra
Today it means: Pristella maxillaris, a fish with a highly transparent body. Full definition →
Today it means: Pristella maxillaris, a fish with a highly transparent body. Full definition →
Like an X-ray image, the fish's transparent skin allows the bones to be seen.
Etymology from Wiktionary, CC BY-SA 4.0.