Plagiostomum striatum Westblad, 1956

Faubel, A. & Warwick, R. M., 2005, The marine flora and fauna of the Isles of Scilly: Free-living Plathelminthes (‘ Turbellaria’), Journal of Natural History 39 (1), pp. 1-45 : 25-26

Plagiostomum striatum Westblad, 1956

Material examined

Site 13: one specimen, in squash preparation. Geographical distribution. Skagerrak: Sweden (Gullmarfjord: Blåbergsholmen), Norway (Oslofjord: DrØbak); English Channel: England (Plymouth: Cawsand Bay); Mediterranean Sea: Adriatic Sea ( Croatia: Rovinj) ( Westblad 1956).

Remarks

Differences from the description of Westblad (1956) include the dark brown pigment streaks, eyes, pharynx and seminal vesicle. In the specimen recorded from the Isles of Scilly, the pigment streaks are not very distinct and mainly developed in the area of the brain and pharynx. Only a very weak streak is seen extending backwards. There are two eye spots at each side but very close to each other simulating a single one. The pharynx does not contrast very distinctly from the surrounding tissue. In the male system the seminal vesicle is much more developed than reported by Westblad. It takes up almost the whole part of the second body-third, being frontal of the male penis sack.