Peter amicuscardis is a species of marine fish in the family Gobiidae, the gobies. It is endemic to São Tomé and PrÃÂncipe, where it occurs at depths from . The species was named and described by KovaÃÂiàand Schliewen in 2008.
The fish grows to maximum length. The fish are found in burrows of the shrimp Axiopsis serratifrons; its specific name amicuscaridis is a compound noun which means "friend of shrimps" in reference to this association. It feeds on sea snails from the families Scissurellidae, Rissoidae, and Limacinidae.