Helleri is a 7 letter English word. It's valid Scrabble word worth 10 points. It's valid Words with friends word worth 11 points.
You can make 75 anagrams from letters in helleri (eehillr).
1905-10; New Latin helleri (of Heller), a specific epithet, after Carl Heller, 20th cent. tropical fish collector
The dark color is as might be expected since helleri inhabits the humid Tropical Zone.