Laetmatophilus Bruzelius, 1859

Hughes, L. E., 2013, Podoceridae of Tropical Australia (Peracarida: Amphipoda), Records of the Australian Museum 65 (1), pp. 1-37 : 2

Laetmatophilus Bruzelius, 1859

Laetmatophilus Bruzelius, 1859:10 .— Stebbing, 1906: 695.—J. L. Barnard, 1969: 430.— Laubitz, 1984:79.— Ledoyer, 1986: 920.—Barnard & Karaman, 1991: 660–661.

Diagnosis. Pereon depressed, segments 5–7 fused; urosome of 2 segments. Accessory flagellum absent; epistome produced; maXilla 1 inner plate greatly reduced, non-setose, outer plate with 9 spines; maXilla 2 without facial setae; maXilliped palp 4 blunt; gnathopod 2 of female nearly as large as that of male; brood plates on pereopods 2–4; uropod 2 without rami, uropod 3 absent.

Remarks. Fusion of the cuticle segments of posterior pereonites 5 to 7 is inconsistent within the genus ( Laubitz, 1984). Laetmatophilus triceratops sp. nov. has clearly fused pereonites 5 to7 which can be readily observed from the SEM images ( Fig. 2A,B ).

Figures

Figure 2. Laetmatophilus triceratops sp. nov., holotype male, 4.3 mm, AM P. 87032, Arafura Sea. SEM photographs: (A) whole animal lateral view (scale 200 µm); (B) whole animal dorsal view (scale 200 µm); (C) head lateral view (scale 100 µm); (D) head dorsal view (scale 100 µm) and (E) gnathopod 2 propodus palm plumose setae (scale 20 µm).