Portaratrum, a new genus of deep­sea Tanaidacea (Crustacea) with description of two new species Guerrero-Kommritz, Jürgen Zootaxa 2003 282 1 14 Hansen, 1913 Hansen 1913 [264,694,1749,1775] Malacostraca Leptognathiidae Leptognathia Animalia Tanaidacea 1 2 Arthropoda species armata   Material examined: Syntype, ZMUC CRU­5612, non­ovigerous female, 3.8 mm, IngolfExpedition, station 22, 48°25´N, 58°10´W, 3474 m. Remarks: Specimen in good condition. Carpal shield of cheliped broad and smooth. Cheliped basis not fused to the cephalothorax.