brown shrimp noun5 •Any of various types of shrimp. •Crangon crangon, found in the northeastern Atlantic Ocean and North Sea. •Farfantepenaeus aztecus, found in the northwestern Atlantic Ocean and Gulf of Mexico. •Farfantepenaeus subtilis, found in the southwestern Atlantic Ocean as far north as Cuba. •Metapenaeus monoceros, an Indo-Pacific species and Lessepsian migrant. formsbrown shrimps