Nudiscintilla cf. glabra Lützen & Nielsen, 2005

Orfanidis, Sotiris, Alvito, Andrea, Azzurro, Ernesto, Badreddine, Ali, Souissi, Jamila Ben, Chamorro, Manuel, Crocetta, Fabio, Dalyan, Cem, Fortič, Ana, Galanti, Luca, Geyran, Kemal, Ghanem, Raouia, Goruppi, Alenka, Grech, Daniele, Katsanevakis, Stelios, Madrenas, Enric, Mastrototaro, Fransesco, Montesanto, Federica, Pavičić, Mišo, Pica, Daniela, Pola, Lisa, Pontes, Miquel, Ragkousis, Michail, Rosso, Antonietta, Sánchez-Tocino, Luis, Figueroa, J. Manuel Tierno De, Tiralongo, Francesco, Tirelli, Valentina, Tsioli, Soultana, Tunçer, Sezginer, Vrdoljak, Dario, Vuletin, Verdan, Zaouali, Jeanne & Zenetos, Argyro, 2021, New Alien Mediterranean Biodiversity Records (March 2021), Mediterranean Marine Science 22 (1), pp. 180-198 : 187

3.4 Nudiscintilla cf. glabra Lützen & Nielsen, 2005 reaches the Aegean coasts of Turkey

Kemal GEYRAN and Argyro ZENETOS

The bivalve Nudiscintilla cf. glabra Lützen & Niel- sen, 2005 was first recorded from the Mediterranean Sea by Mifsud & Ovalis (2012), based on five living specimens collected at Adana, Yumurtalik, on the Mediterranean coast of Turkey. Since its first detection year (2010: P. Ovalis pers. commun.), the species has been reported from Israel (Albano et al., 2021a, b). Here we report the finding of a single living specimen from Bodrum, on the Aegean coast of Turkey (37.129356° N, 27.571639° E) in August 2019.

Our material ( Fig. 7 ) was collected at a depth around 2-3 m under a rock, attached to it. The sea bed was mainly covered with detritus and pebbles. Its habitat agrees with that of Mifsud & Ovalis , 2012 (living under stones in shallow water in 1.5-2 m) and Albano et al. (2021a,b) (rocky substrata).

We provisionally identified the specimen as Nudiscintilla cf. glabra based on the shell morphology that matches well with that of the specimen figured by Mifsud & Ovalis (2012). Dentition details as described by Lützen & Niel- sen (2005) were not examined as the hinge of the single collected specimen was not opened to avoid damage. The specimen is kept in the private collection of one of us (KG).

Shipping (Transport-Stowaway) appears to be the likely mode of introduction of N. glabra in the Mediterranean. Most locations it has been detected to date are from or in the vicinity of harbours: Adana ( Mifsud & Ovalis , 2012), Nahariya (rocky platform 200 m north of the entrance to the marina, Albano et al., 2021b), Bodrum (this work). Alternatively, the species may have expanded its distribution unaided from a locally established population in Yumurtalik Bay. The present record, along with those of Albano et al. (2021a, b) confirm the establishment of N. cf. glabra and its expansion from the Levantine to the Aegean Sea. The number of established alien species in the Mediterranean (Zenetos & Galanidi, 2020) keeps increasing.

Figures

Fig. 7: Nudiscintilla cf. glabra from Bodrum (length = 12.3, height = 7.3 mm). Photo credit: Kemal Geyran.