Eucallisoma J.L. Barnard, 1961

Kilgallen, Niamh M. & Lowry, James K., 2015, A review of the scopelocheirid amphipods (Crustacea, Amphipoda, Lysianassoidea), with the description of new taxa from Australian waters, Zoosystematics and Evolution 91 (1), pp. 1-43 : 12

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.