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The Collaborative International Dictionary
Chromis punctipinnis

Blacksmith \Black"smith`\, n. [Black (in allusion to the color of the metal) + smith. Cf. Whitesmith.]

  1. A smith who works in iron with a forge, and makes iron utensils, horseshoes, etc.

    The blacksmith may forge what he pleases.
    --Howell.

  2. (Zo["o]l.) A fish of the Pacific coast ( Chromis punctipinnis, or Heliastes punctipinnis), of a blackish color.

Wikipedia
Chromis punctipinnis

The blacksmith (Chromis punctipinnis), also known as the blacksmith chromis and blacksmith damselfish, is a fish in the damselfish family. It is native to the northeastern Pacific Ocean, where it range is from Monterey Bay, California, USA, to central Baja California, Mexico. This is a small fish is associated with rocky reefs and kelp forests.