Description of six new species of Isopoda Asellota, collected in North Atlantic Ocean from abyssal depths during the Biaçores and Biogas IV cruises of N.O. " Jean Charcot " : Haploniscus charcoti sp. n., Haplomesus biscayensis sp. n., Syneurycope dageti sp. n., Syneurycope monicae sp. n., Janirella hessleri sp. n., Acanthaspidia laevis sp. n. [NOT CONTROLLED OCR]