Prosthiostomum siphunculus (Delle Chiaje, 1822) Lang, 1884

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 : 127

Prosthiostomum siphunculus (Delle Chiaje, 1822) Lang, 1884

( Fig. 2 j)

Habitat. 5 specimens were collected from mussel beds, 10 others specimens were found among algae.

Locality. Bizerta lagoon (37° 13' 19.29" N; 9° 55' 49.94" E), Port de Prince (36° 52' 25.87" N; 10° 39' 57.06" E), Errimel beach (36° 52' 25.87"N; 10° 39' 57.06" E).

Localities in Tunisia from bibliography. Port de Prince, Errimel beach (Gammoudi et al. 2011, Gammoudi and Tekaya 2012, 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); Egypt ( Steinböck 1937); Catalan coasts ( Novell 2001, Gammoudi & Tekaya 2011); Spanish, Italian, Greek and Corse coasts ( Gammoudi et al. 2012a); European Atlantic coasts (Noreña et al. 2014); the Tyrrhenian Sea, also from South Africa, Somalia and Vietnam ( Prudhoe 1985) and Japan ( Kato 1937).

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.