Homology between the lacinia mobilis of peracarid crustaceans (Malacostraca) and movable appendages of the mandibular edge in other crustaceans, hexapods, and myriapods has been advocated in classical as well as recent phylogenetic studies, and in some

The effect of hydrostatic pressure on the pleopod activity and general behavior of two bathypelagic mysids, Gnathophausia ingens and Gnathophausia gracilis, was observed. Although both showed transient responses to rapid pressure changes, their long-term

In 1941, Fage (1941), referring to the shape of carapace, antennal scale, epimeral plates of sixth abdominal somite and structure of maxilliped, proposed three groups of species in the genus Gnathophausia, but did not give these groups taxonomical status.

Homology between the lacinia mobilis of peracarid crustaceans (Malacostraca) and movable appendages of the mandibular edge in other crustaceans, hexapods, and myriapods has been advocated in classical as well as recent phylogenetic studies, and in some