This section temporarily contains information copied directly from Bulbapedia, and needs to be rewritten so not to be classified as plagiarism.
Dragalge is a brown aquatic Pokémon that resembles a sea dragon. Its main body is curved in way that resembles the number three. Its sides are a dull shade of purple with slender vertical lines. Its pectoral fins and tail fin resemble dried up kelp. It has a straightened brown snout. Dragalge has a red leaf-like crest and brown-green antenna on top of its head.
Dragalge can spit poison strong enough to eat through the hull of a tanker; this territorial Pokémon will spit this poison at whatever trespasses its territory. As a result, it is said that ships sailing through the seas where it lives never return.