Diastylis catalinae Alberico & Mühlenhardt-Siegel, 2010
Holotype.
Southern Ocean • prep. ♀; West Weddell Sea, ANDEEP III (ANT XXII / 3) exped., FS Polarstern stat. PS 67-121 - 11; 63 ° 36.19 ' S, 50 ° 37.15 ' W [- 63.6031, - 50.6192]; 2657 m depth; 15 March 2005; Angelika Brandt leg.; box corer; specimen dissected; ZMH - K- 042182.
Paratypes.
* • subA. ♂; West Weddell Sea, ANDEEP III (ANT XXII / 3) exped., FS Polarstern stat. PS 67-110 - 8; 64 ° 0.52 ' S, 43 ° 02.09 ' W [- 65.0087, - 43.0348; - 65.0113, - 43.0359]; 4698 [4698–4696] m depth; 10 March 2005; Angelika Brandt leg.; epibenthic sledge; specimen dissected; ZMH - K- 042181. * • 1 m. + prep. ♀; same data as holotype; ZMH - K- 042183.
Diagnosis.
Carapace, surface translucent, inferior margin serrated, anterior part with several teeth arranged in two non-uniform rows on each side of the pseudorostrum. Antenna 2, article 4 with a minute seta. Pereopods 3 and 4 with rudimentary exopods. Telson with 6–7 cuspidate setae on each side. Uropod endopod of 3 - articulated (after Alberico and Mühlenhardt-Siegel 2010).
Distribution.
Southern Ocean, 2657–4698 m depth.
Publication Date: 2026-06-05