“…In particular, the updated checklist reports four newly described species: Pseudodistoma valeriae Brunetti, 2009(Brunetti 2009, Ciona intermedia Mastrototaro, 2020(Mastrototaro et al 2020a, Botrylloides crystallinus Bay-Nouailhat, Bay-Nouailhat, Gasparini & Brunetti 2020(Bay-Nouailhat et al 2020, and Botryllus gaiae (Brunetti et al 2020). Furthermore, five species were recorded for the first time in marine units where they were not present before, thus expanding their geographical distribution: Aplidium tabarquensis Ramos-Esplá, 1991 (Ponti & Mastrototaro 2006, Petović et al 2018, Ecteinascidia turbinata Herdman, 1880 (Lezzi et al 2018, Ragkousis et al 2020, Diazona violacea Savigny, 1816 (Mastrototaro et al 2020b), Distaplia bermudensis Van Name, 1902(Orfanidis et al 2021 and Ciona edwardsi Roule, 1884 (Santin et al 2021). Seven new nonindigenous species were recorded along the Italian coasts: Didemnum vexillum Kott, 2002 (Tagliapietra et al 2012), Botrylloides giganteus (Pérès, 1949) (Brunetti & Mastrototaro 2017, Rocha et al 2019, Salonna et al 2021, Microcosmus anchylodeirus Traustedt, 1883 (Monniot 2016), Symplegma brakenhielmi (Michaelsen, 1904) (Mastrototaro et al 2019a), Aplidium accarense Millar, 1953(Montesanto et al 2021), Polyclinum constellatum Savigny, 1816(Montesanto et al 2022, Styela clava Herdman, 1881 (Mastrototaro et al 2022).…”