Angursa lanceolata Renaud-Mornant, 1981

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 : 19

Angursa lanceolata Renaud-Mornant, 1981

N= 36 specimens occurrence: ANDEEP I, III, ANDEEP-SYSTCO; 1,927–5,213 m bsl.

Fig. 9 C ; Supplementary Table 1.8

Short description

Angursa with slender body (101–150 µm long, 15.7–24.0 µm width, n=4) and primary clavae shorter than cirri A. Secondary and tertiary clavae present. Elongated leg IV sensory organs. Cirri E with lance-shaped ending.

Remarks

A. lanceolata belongs to the A. lanceolata group with primary clavae shorter than cirri A ( Fujimoto & Hansen 2019). Species with easily recognisable lance-shaped cirri E ( Renaud-Mornant, 1981).

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.