Angursa lingua Bussau, 1992

Trokhymchuk, Roman, Schmidt-Rhaesa, Andreas, Utevsky, Serge, Kristensen, Reinhardt Møbjerg & Kieneke, Alexander, 2024, Towards a better understanding of deep-sea tardigrade biogeography: numerous new records from the Southern Ocean, Zootaxa 5543 (1), pp. 1-39 : 21

Angursa lingua Bussau, 1992

N= 65 specimens occurrence: ANDEEP I, II, ANDEEP-SYSTCO; 1,088–3,555 m bsl.

Figs 9D, E ; Supplementary Table 1.9

Short description

Angursa with slender body (137–172 µm long, n=5) and primary clavae shorter than cirri A ( Fig. 9D ). Secondary and tertiary clavae present. Elongated leg IV sensory organs. Cirri E with tongue-shaped ending ( Fig. 9E ).

Remarks

A.lingua belongs to the A. lanceolata group with primary clavae shorter than cirri A ( Fujimoto & Hansen 2019). Species with easily recognisable traits, such as tongue-shaped cirri E and elongated sensory organs on legs IV ( Fig. 9E ) ( Bussau, 1992).

Figures

FIGURE 9. Angursa lanceolata group. A Angursa antarctica, male, light microscopy (DIC), dorsal view. A2 Angursa antarctica, male, light microscopy (DIC), dorsal view, secondary clavae indicated. B Angursa antarctica, male, light microscopy (DIC), ventral view, note male gonopore (arrowhead). C Angursa lanceolata, female, light microscopy (DIC), ventral view. D Angursa lingua, female, light microscopy (DIC), dorsal view. E Angursa lingua, light microscopy (DIC), sagittal view, note cE (arrowhead). Abbreviations: cA—cirrus A, cE—cirrus E, pb—pharyngeal bulb, pc—primary clava, sc—secondary clava, se—leg sensory organ, tc—tertiary clava.