R. Bedini, DISCOVERY OF A POPULATION OF PORTUNUS-HASTATUS (LINNAEUS, 1767) (DECAPODA, BRACHYURA) WITH ABERRANT COLORATION IN ITALIAN WATERS, Crustaceana, 71, 1998, pp. 241-246
Eighteen specimens of Portunus hastatus with chromatic characters prev
iously undescribed in the literature, have been caught in the same fis
hing-area in the course of one year. The characteristics of the crabs
and their behaviour were studied in laboratory aquariums. From our dat
a, it appears that the number of crabs with the particular colouration
on the dactylus of pereiopod V, as described in our paper, is increas
ing.