Mysids, opossum shrimps Misidaceos, camaroncitos Phylum Arthropoda Class Crustacea Subclass Malacostraca Order Mysidacea Description Mysids look very much like little shrimps.
Females possess a marsupium, or brood pouch, hence the common name of opossum shrimps.
Their elongated body is usually transparent, with a thin carapace , and stalked compound eyes . They have several sensory organs used for balance and orientation called statocysts. About 780 mysidaceans have been described. The majority of mysids measure 1.5 to 3 cm. in length. Range and Habitat Most species are marine and are found at all depths.