Psammogammarus S. Karaman 1955

Figure 2.Psammogammarus wallacei sp. n., male paratype 2.53 mm, P5-P7 wanting. A body, lateral B left antennule, lateral C same showing medial armature D right antenna, lateral. Arrows pointing at serially-homologous pairs of articles of main flagellum of antennule.

Figure 3.Psammogammarus wallacei sp. n., male holotype. A left mandible B right mandible C maxillule D maxilla E maxilliped, posterior F inset of distal segments of palp of latter, anterior.

Figure 4.Psammogammarus wallacei sp. n., male holotype. A right gnathopod I, medial B inset of coxa, lateral C palm, medial D left gnathopod II, medial; palm, medial. Notice that C and E are not at same scale.

Figure 5.Psammogammarus wallacei sp. nov., male holotype. A left pereiopod III with coxal gill omitted, lateral B right pereiopod IV, lateral C right uropod III, dorsal D left gnathopod II of female paratype 2.98 mm showing coxal gill and oostegite, coxal plate omitted, medial. [Scale bars: 0.25 mm (C); 0.1 mm (A, B, D)]

Figure 6.Psammogammarus wallacei sp. n., male holotype. A right pereiopod V, lateral B left pereiopod VI, lateral C left pereiopod VII, lateral D right uropod II, posterior E telson, dorsal.

Figure 7.Psammogammarus wallacei sp. n., male holotype. A left pleopod I, posterior B left pleopod II with distal portion of endopod omitted, endopod unnaturally bent to expose medial margin of proximal article of exopod, anterior view C detail of latter, anterior D left pleopod III, anterior E detail of distal portion of protopod of right pleopod III, posterior. Arrows pointing at armature elements of protopod.

Figure 8.Psammogammarus wallacei sp. n., male holotype. A left epimeral plates, lateral B urosome, lateral (uropod III wanting) C left uropod I, posterior D paragnaths.