Leucon (Crymoleucon) weddellensis Mühlenhardt-Siegel 2011, sp. n.

• Main Author: Mühlenhardt-Siegel, Ute
• Format: Other/Unknown Material
• Language: unknown
• Published: 2011
• Subjects: Biodiversity; Taxonomy; Animalia; Arthropoda; Insecta; Coleoptera; Curculionidae; Leucon; Leucon weddellensis; Seta; Weddell; Weddell Sea; Antarc*; Antarctica
• Online Access: https://zenodo.org/record/5245257; https://doi.org/10.5281/zenodo.5245257

Leucon (C.) weddellensis sp. n. (Figures 20–22) Material. Holotype subadult male, ZMH: K 42943; 6. February 1998. Type locality. Antarctica, south-eastern Weddell Sea, 73° 34.77’ S 22° 38.29’ W, 938 m depth, ANT XV, #107, epibenthic sledge. Paratypes: E Weddell Sea: ANT XV #107: 2 subadult males, 1 subadult female, 3 mancas; ANT XV #130: 2 subadult males, 3 females with oostegites, 11 non-ovigerous females (1 dissected), 7 mancas; ANDEEP III #80: 1 ovigerous female (dissected), 1 subadult female (damaged). ZMH K 42944. Etymology. The new species is named after the type locality, the Weddell Sea. Diagnosis. Row of dosomedian teeth almost to end of carapace with 19 teeth in males; one lateral carapace tooth each at frontal and pseudorostral lobe; one seta at inner margin of uropod peduncle; first (basal) article of endopod 3.4 times as long as distal article; accessory flagellum of antenna 1 almost as long as basal article of main flagellum. Description. Holotype, 3.3 mm long (Fig. 20). Carapace with two small and indistinct lateral teeth, one on each, frontal and pseudorostral lobe; dorsomedian row of 19 teeth extending from anterior margin of frontal lobe to close to the posterior margin of carapace; pseudorostral lobes meeting in front of ocular lobe, directed forwards, 0.2 times as long as carapace measured from anterior margin of frontal lobe to posterior dorsal margin of carapace; siphonal tube not protruding; ocular lobe rudimentary; eyes missing. Antennal notch reaching beyond level of anterior margin of frontal lobe; anterolateral tooth acute; anteroventral margin of carapace serrate. Integument white, very weak scaly structure. Five free thoracic segments visible. Pleon slightly shorter than carapace and free thoracic segments combined. Pleotelson slightly wider than long, 0.8 times as long as uropod peduncle. Appendages: female (paratype). Antenna 1 (Fig. 21, A 1): relative length of peduncle articles 1 to 3: 44/27/29; geniculate between article 1 and 2, long setulate seta at article 2; accessory ...