Checklist of the Decapods (Crustacea) from the Fernando de Noronha Archipelago, Brazil Author Alves, Maria De Lourdes Author Ramos-Porto, Marilena Author Viana, Girlene Fábia Segundo text Zootaxa 2008 1881 43 68 journal article 10.5281/zenodo.184217 7c3cd8cb-c7ba-40d9-94ff-5bdb9a5de987 1175-5326 184217 Family Plagusiidae Dana, 1851 Percnon gibbesi (H. Milne Edwards, 1853) Diagnosis: Melo, 1996 :457. Previous records: Pocock, 1890 :513 [as Leiolophrus planissimus (Herbst, 1804)]; Coelho, 1967 /69: 235 [as Percnon planissimum (Herbst, 1804) ]; Coelho and Ramos, 1972 :204 [as Percnon planissimum (Herbst, 1804) ]; Williams, 1984 :462; Melo, 1996 :457, 1998:500; Coelho et al., 2002 :445. Examined material: JAN/92: Praia do Porto, 1 female . MAR/92: Praia da Atalaia, 1 male , 1 female . JUN/ 92: Praia da Conceição, 2 males , 1 female . AUG/92: Praia da Caieira, 6 specimens . DEC/92: Baía do Sueste, 4 specimens . JAN/2000: Praia da Caieira: 2 females . Habitat: On and under rocks; in caves; on seaweed; always in the sublittoral. Observations: Generally seen in groups; coloration brown with fluorescent blue spots. Plagusia depressa (Fabricius, 1775) Diagnosis: Melo, 1996 :458. Previous records: Pocock, 1890 :513; Crosnier and Forest, 1966 :93; Coelho and Ramos, 1972 :204; Fausto Filho, 1974 :15; Williams, 1984 :463; Melo, 1996 : 458, 1998:500. Examined material: JAN/92: Praia do Leão, 1 female ; Praia da Atalaia, 1 male . JUN/92: Praia do Porto, 1 male . AUG/92: Praia da Atalaia, 1 female . DEC/92: Praia do Boldró, 4 specimens . MAR/93: Praia do Leão, 6 specimens . JAN/2000: Praia do Leão: several exuvias. Habitat: On rocks; in rocky-slimy bottom. Observations: very abundant species, observed in the intertidal and sublittoral zones, and in between the tide lines.