Diogenidae Ortmann, 1892

Alves, Maria De Lourdes, Ramos-Porto, Marilena & Viana, Girlene Fábia Segundo, 2008, Checklist of the Decapods (Crustacea) from the Fernando de Noronha Archipelago, Brazil, Zootaxa 1881, pp. 43-68 : 54-55

Family Diogenidae Ortmann, 1892

Calcinus tibicen (Herbst, 1791)

Diagnosis: Melo, 1999:42, fig. 2.

Previous records: Coelho, 1967 /69:232; Coelho and Ramos, 1972:170; Coelho and Ramos-Porto, 1985 / 86:52; Veloso, 1998:422; Melo, 1999:42.

Clibanarius antillensis Stimpson, 1859

Diagnosis: Melo, 1999: 48, fig. 6.

Previous record: none

Examined material: NOV/91: Praia do Porto, 3 males, 1 female. DEC/91: Praia do Leão, 1 male, 1 female. JAN/92: Praia do Boldró, 5 males, 3 females. APR/92: Praia da Atalaia, 1 male, 1 female; Praia do Boldró, 1 male, 1 female. AUG/92: Baía do Sueste, 1 male; Praia do Leão, 1 male, 1 female; Praia da Caieira, 1 male, 1 female. MAR/93: Praia do Cachorro, 2 males, 1 female (ovigerous). AUG/93: Baía do Sueste, 1 male; Praia da Atalaia, 3 males, 1 female; Praia do Boldró, 1 male. JAN/2000: Praia da Atalaia: several specimens; Praia da Caieira: several specimens.

Habitat: On seaweed, rocks or reefs; in the interior of rocks; under rocks in bottom sandy-muddy; in pools in the intertidal and sublittoral zones.

Clibanarius tricolor (Gibbes, 1850)

Diagnosis: Melo, 1999:54, fig. 12.

Previous records: Coelho, 1967 /69: 232; Coelho and Ramos, 1972:169; Coelho and Ramos-Porto, 1985 / 86:51; Fausto-Filho, 1974:9; Melo, 1999:54; Coelho et al., 2002:448.

Examined material: NOV/91: Praia da Atalaia, 1 male, 1 female; Praia do Leão, 2 males; Baía do Sueste, 1 female; Praia do Boldró, 1 male, 1 female; Praia do Cachorro, 2 females; Praia do Porto, 1 male; Enseada do Abreu, 2 males, 1 female. JAN/92: Baía do Sueste, 1 male. MAR/92: Praia do Leão, 1 male, 1 female. MAR/ 92: Praia da Atalaia, 1 female; Praia do Cachorro, 2 males, 1 female (ovigerous). APR/92: Praia do Leão, 3 females (ovigerous). JUL/92: Baía do Sueste, 1 male; Praia do Porto, 1 male, 1 female. AUG/92: Praia do Boldró, 1 male. DEC/92: Praia da Conceição, 1 male, 2 females; Praia do Cachorro, 1 male. MAR/93: Praia do Leão, 3 females (ovigerous). AUG/93: Praia da Conceição, 2 females. JAN/2000: Praia do Leão: several specimens.

Habitat: on reefs, seaweed, and silt; in pools in the intertidal zone, under rocks, in bottom sandy-slimy or sandy-muddy.

Observations: the specimens had a dark blue ring on the distal part of the merus. Generally observed in groups of up to 100 individuals.

Dardanus venosus (H. Milne Edwards, 1848)

Diagnosis: Melo, 1999:64, fig.20.

Previous records: Coelho, 1967 /69: 232; Coelho and Ramos, 1972:168; Coelho and Ramos-Porto, 1985 / 86:50; Rieger, 1998:420; Melo, 1999:64; Coelho et al., 2002:448; Coelho-Filho, 2006:14.

Paguristes tortugae Schmitt, 1933

Diagnosis: Melo, 1999:88, fig.42.

Previous record: Coelho-Filho, 2006:14.