Family Tychidae Dana, 1851

Examined material: MAR /92: Praia do Boldró, 1 male, 1 female. JUN/92: Baía do Sueste, 1 female (ovigerous). DEC/92: Praia da Caieira, 1 male. MAR /93: Praia do Porto, 2 males. JAN/2000: Praia do Leão: 1 exuvia.

Habitat: In the interior of rocky blocks; in pools in the intertidal zone, on seaweed. Observation: Varied coloration: it turns yellow, red, brown with red spots, brown, black color, orange.