Samurian

Samurians are a sapient species of bipedal amphibianoids.

Biology
Samurians are large creatures which seem to combine amphibian, reptilian and mollusk-like traits. They have strong forelimbs, flipper-like organs on their backs, a short quasi-tubular mouth and mobile eyestalks.

Although not particularly frightening at first sight, the Samurian mouth can open up to reveal sharp, deadly fangs and they can become very dangerous when confronted. Their blood is a viscous blue fluid.

Notable members
Mikey was a Samurian criminal who escaped from prison and fled to planet Earth illegally, where he tried to evade discovery by disguising himself as a Mexican immigrant, in spite of the fact that he couldn't understand Spanish. According to the Men in Black, this act violated none less than seven interplanetary treaties articles.

At first MiB agents D and K attempted to arrest Mikey, but when he charged at a Human named Janus, they were forced to shoot him, destroying him in an explosion of blueish goo.