(da Silva, 1971)
Posterior margin of carapace with lateral lobes reflexed.
Inner margin of endopod of uropods with 3 spines, 2 in proximal portion and 1 in middle portion; exopod with 11-16 spines on outer margin.
Telson with lateral margin armed with 8 spines including 2 longer spines at apex. Distal cleft of telson with 10 spines on each lateral margin.
Ref.: da Silva (1970a), as Gastrosaccus brasiliensis; da Silva (1971a).