Thysanozoon brocchii (Risso, 1818) Grube, 1840

Gammoudi, Mehrez, Garbouj, Myriam, Egger, Bernhard & Tekaya, Saïda, 2017, Updated inventory and distribution of free-living flatworms from Tunisian waters, Zootaxa 4263 (1), pp. 120-138 : 128

Thysanozoon brocchii (Risso, 1818) Grube, 1840

( Fig. 2 k)

Habitat. 4 specimens were collected from mussel beds and under rocks.

Locality. Bizerta lagoon (37° 13' 19.29" N; 9° 55' 49.94" E), lagoon of Ghar El-Melh (37° 10' 09.81" N; 10° 13' 04.27" E) and Bouficha beach (36° 16' 48.36" N; 10° 29' 36.98" E).

Localities in Tunisia from bibliography. Ghar El-Melah lagoon (Gammoudi & Tekaya 2012; Gammoudi et al. 2011; Gammoudi et al. 2012a).

Other localities in the world. This species has a broad world distribution as it was recorded from the Mediterranean: Gulf of Naples ( Lang 1884); coasts of Catalonia ( Novell 2001) ; Murcia (Gammoudi & Tekaya 2012, Gammoudi et al. 2012a); Tarifa ; Corse; Italy ( Gammoudi et al. 2012a); Cape Verde ( Laidlaw 1906); Suez canal ( Palombi 1928); Croatia ( Steinböck 1933) ; USA (Pearse 1938); East London ( South Africa) ( Palombi 1939) ; Japan ( Kato 1944); Brazil (Marcus 1949); Colombia ( Quiroga et al. 2008); Argentina ( Brusa et al. 2009); Persian Gulf ( Maghsoudlou & Rahimian 2014); British coasts ( Howson & Picton 1997); Atlantic ocean (Noreña et al. 2014).

Figures

FIGURE 2. Polyclads from Tunisian waters. Dorsal view in all panels, anterior to the left. a Leptoplana mediterranea. b Leptoplana tremellaris. c Echinoplana celerrima. d Theama mediterranea; the depicted specimen was collected in Calvi, Corse. e Imogine mediterranea. f Discocelis tigrina. g Cestoplana rubrocinta. h Comoplana agilis. i Prosthiostomum siphunculus. j Prostheceraeus moseleyi. k Thysanozoon brocchii. l Pseudoceros maximus. m Yungia aurantiaca n hatching in Leptoplana tremellaris. o hatched four-eyed juvenile of Leptoplana tremellaris. Scale bars: 2 a – c, 2 e – m: 5 mm; 2 d, 2 n – o: 100 microns.