TAXONOMY OF SUBTIDAL MARINE POLYCLADS FROM TABARKA (NORTHWEST TUNISIA) WITH REMARKS ON THEIR HABITAT PREFERENCES

Mehrez Gammoudi, Raja Ben Ahmed, Saïda Tekaya

Abstract


The Polyclad fauna of the northwest Tunisian coasts is still unexplored. This is the first investigation of Polyclad flatworms collected by scuba diving in Tunisian waters. Three species belonging to three different families and three different genera are reported and re-described. Echinoplana celerrima (Haswell, 1907) was found to feed on the ascidian Ciona intestinalis (Linnaeus, 1767) at 20 m of depth and Thysanozoon brocchii (Risso, 1818) was observed to eat on sponges Dysidea tupha (Martens, 1824) at 16 m of depth. Prosthiostomum siphunculus (Delle Chiaje) was found creeping on stones at 29 m of depth. Some anatomical data of living specimen of P. siphunculus and fixed specimens of T. brocchii were provided for the first time.

Keywords


Free-living marine flatworms;Tunisia; scuba diving; Ecology.

Full Text:

PDF

Refbacks

  • There are currently no refbacks.