Genus Mediomastus Hartmann, 1944

(AL) Mediomastus capensis Day, 1961

DISTRIBUTION: NA.

LITERATURE RECORDS: Crema et al. 1993, 2001; Keppel & Maggiore 2006; Maggiore & Keppel 2007; Castelli et al. 2008.

NEW RECORDS: BM17.

REMARKS: Alien species originally described from the Indian Ocean, along the southern African coast (Day 1961; Zenetos et al. 2010).

DEPOSITED MATERIAL: BM17, 29.09.2010., 10 spec. (PMR-17629).

Mediomastus cirripes Ben-Eliahu, 1976

DISTRIBUTION: NA.

LITERATURE RECORDS: Ambrogi et al. 1987; Požar-Domac 1994.

® Mediomastus fragilis Rasmussen, 1973

DISTRIBUTION: CA.

NEW RECORDS: BM97.

REMARKS: This is the first record from the Adriatic Sea. DEPOSITED MATERIAL: BM97, 20.08.2013., 1 spec. (PMR-17627).