A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters Author Kilgallen, Niamh M. Australian Museum Research Institute, 6 College Street, Sydney, NSW 2010, Australia niamh.kilgallen@austmus.gov.au Author Lowry, James K. Australian Museum Research Institute, 6 College Street, Sydney, NSW 2010, Australia text Zoosystematics and Evolution 2015 2015-03-05 91 1 1 43 http://dx.doi.org/10.3897/zse.91.8440 journal article http://dx.doi.org/10.3897/zse.91.8440 1860-0743-1-1 CAFFC884904F40C2AACF12BE3A2F3ECC FF8CFFC4FFA2166F883BFF8BFFE31C49 575740 Eucallisoma J.L. Barnard, 1961 Eucallisoma J.L. Barnard, 1961: 32. - J.L. Barnard 1969 : 305, key K. - Barnard and Karaman 1991 : 454 (key), 484, figs 86C, 92P. - Lowry and Stoddart 1993 : 67 (in part). Type species. Eucallisoma glandulosa J.L. Barnard, 1961, original designation. Included species. Eucallisoma includes one species: Eucallisoma glandulosa J.L. Barnard, 1961. Diagnosis. Mandible lacinia mobilis a stemmed, distally expanded, irregularly cusped blade . Maxilla 1 inner plate with pappose setae along inner margin; palp 2-articulate . Maxilla 2 inner and outer plates subequal in length; inner plate broader than outer plate. Maxilliped palp article 4 well developed . Gnathopod 1 coxa large, margins subparallel; basis swollen, with glandular material ; dactylus reduced, simple. Pereopod 3 carpus compressed to short, about as long as wide. Pereopod 4 with well-developed, subquadrate posteroventral lobe . Discussion. The removal of Eucallisoma barnardi Lowry & Stoddart, 1993 to Tayabasa gen. n. leaves Eucallisoma as a monotypic taxon. Future deep-sea samples will hopefully uncover associated taxa that will provide a clearer picture of the relationships between these animals.