Leucon pinocchio Mühlenhardt-Siegel, 2025Holotype.South Atlantic Ocean • ovig. ♀; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-580; 14°58.91'S, 29°56.49'W [- 14.98183, - 29.94150; - 14.98167, - 29.93833]; 5131 [5131–5154.2] m depth; 30 July 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064953.Paratypes.* • ovig. ♀; same data as holotype; dissected; ZMH -K-064954. * • subA. ♂ + 3 non-ovig. ♀♀; Argentine Basin, DIVA III exped., FS Meteor stat. M 79 / 1-532; 35°59.16'S, 49°0.75'W [- 35.986, - 49.0125; - 35.98733, - 49.01483]; 4605 [4604.5–4605.4] m depth; 15 July 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064981. * • subA. ♂ + ovig. ♀ + 4 non-ovig. ♀♀; Argentine Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-533; 36°0.20'S, 49°01.96'W [- 36.00333, - 49.03267; - 36.00450, - 49.03533]; 4602 [4601.8–4605.7] m depth; 15 July 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064982. * • 6 m. + 2 subA. ♂♂ + ♂ + ovig. ♀ + 6 non-ovig. ♀♀; Argentine Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-534; 36°0.61'S, 49°01.54'W [- 36.01017, - 49.02567; - 36.01150, - 49.02900]; 4608 [4607.8–4605.1] m depth; 16 July 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064983. * • 2 non-ovig. ♀♀; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-583; 14°59.41'S, 29°56.42'W [- 14.99017, - 29.94283; - 14.99000; - 29.94033]; 5148 [5148.3–5144.2] m depth; 30 July 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064984. * • 3 m. + 2 ovig. ♀♀ + 4 non-ovig. ♀♀; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-604; 03°57.67'S, 28°05.36'W [- 3.96117, - 28.08933; - 3.96183, - 28.08700]; 5180 [5179.8–5232.8] m depth; 5 August 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064985. * • 3 m. + juv. ♂ + subA. ♂ + ovig. ♀ + 6 non-ovig. ♀♀; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-605; 03°57.49'S, 28°04.67'W [- 3.96117, - 28.08933; - 3.96183, - 28.08700]; 5188 [5188.5–5173.9] m depth; 6 August 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064986. * • 1 m. + 4 non-ovig. ♀♀; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-609; 03°57.54'S, 28°03.07'W [- 3.95900, - 28.05117; - 3.95967, - 28,048 83]; 5170 [5170.4–5180.6] m depth; 6 August 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064987. * • 1 m.; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-596; 03°56.94'S, 28°05.21'W [-3.94900, -28.08683]; 5172 [5171.8] m depth; 4 August 2009; Pedro Martínez Arbizu leg.; box corer; ZMH -K-064988. * • non-ovig. ♀; Brazil Basin; DIVA III exped. FS Meteor; stat. M 79 / 1-558; 26°33.95'S, 35°13.33'W [- 26.56583, - 35.22217; - 26.56317, - 35.222]; 4484 [4481.8–4479] m depth; 23 July 2009; Pedro Martínez Arbizu leg.; epibenthic sledge; ZMH -K-064998.Diagnosis.Carapace with 5 teeth mediodorsally: 3 on frontal lobe, one in the middle and one posteriorly up to almost hind part of carapace; in smaller females only 6 teeth in the anterior part; laterally few scattered teeth, 1 tooth laterally on carapace in the region of the frontal suture. Antennal notch small to indistinct; ventral margin of carapace serrate; pseudorostrum very long, length 0.9 carapace length, with 0–4 pairs of teeth dorsally and 3–5 pairs of teeth ventrally (after Mühlenhardt-Siegel 2025).Distribution.Southwest Atlantic, Argentine and Brazil Basins, 4484–5188 m depth.