Jumping spiders (Arachnida, Araneae, Salticidae) from the Nimba Mountains in Guinea Author Rollard, Christine Muséum national d’Histoire naturelle, Laboratoire de Zoologie (Arthropodes), 61 rue Buffon, F- 75231 Paris cedex 05 (France) chroll @ mnhn. fr chroll@mnhn.fr Author Wesołowska, Wanda Zoological Institute, Wrocław University, Sienkiewicza 21, PL- 50335 Wrocław (Poland) tomwes @ biol. uni. wroc. pl. text Zoosystema 2002 24 2 283 307 journal article 10.5281/zenodo.5394616 1638-9387 5394616 Plexippus fuscus n. sp. ( Fig. 15 ) TYPE MATERIAL . — Holotype : Mountain Leclerc , 1250 m a.s.l. , on ground in low vegetation, 23.III.1991 , leg. C. Rollard ,. ETYMOLOGY. — The specific name is Latin for “dark”, and refers to the coloration of this species. DIAGNOSIS. — This species may be separated by the structure of the epigyne, especially the seminal ducts, initial parts of which are heavily sclerotized deep bowls. DESCRIPTION Male unknown. Female. Measurements: carapace length 3.4, width 2.3, height 1.6. Abdomen length 4.0, width 2.4. Eye field length 1.3, anterior and A posterior width 1.9. Medium sized spider. Carapace rather low, dark brown, near eyes black. Thorax medially lighter, orange. Dense brown hairs cover whole carapace, long bristles in vicinity of eyes. Clypeus low, brown. Chelicerae dark brown, two teeth on promargin, single tooth on retromargin. Labium brown, maxillae brown with pale tips, sternum orange. Abdomen elongated, brownishrusset with yellow broad median belt. Venter greyish-yellow. Dense brown hairs on abdomen, longer and denser at anterior margin. Spinnerets yellow. First pair of legs brown, remaining ones orange, only their femora brown. Leg hairs and spines brown. Epigyne elongated, large, strongly sclerotized, with single narrow pocket centrally and two fissured gonopores ( Fig. 15A ). Initial parts of seminal ducts wide, very strongly sclerotized ( Fig. 15B ).