Simocephalus (Simocephalus) latirostris Stingelin, 1906 (Figs. 3 A–C)

Material examined. 5 specimens, collection number CINCAA 0089

Remarks. Originally described in Paraguay in 1906 by Stingelin, S. latirostris might be characterized by having a well-developed and acute posterior-dorsal angle of the carapace (Fig. 3C), a relatively large eye and lozenge ocellus (Fig. 3B); head free from spines or denticles; antennule long in correspondence with long rostrum (Fig. 3B) (Elmoor-Loureiro 1997; Orlova-Bienkowskaja 1995, 1998).