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Show 850 MR. R. i. POCOCK ON SCORPIONS, PEDIPALPS, [NOV. 14, E. semiannulata were based upon examples belonging to the same species. Karsch's figure of the palp of E. peniciilipes resembles that organ in male examples of E. rufipalpis sent by Mr. Bates. ARANEUS THEIS (Walck.). Epeira theis, Walckenaer, Ins. Apt. ii. p. 53. Epeira moreli, Vinson, Araneides de Madagascar, etc. p. 166, pl. iv. fig. 4 (1863). Epeira eclipsis, Marx, Proc U. S. Nat. Mus. xvi. p. 590, pl. lxx. figs. 6 a-6 b. This widely distributed tropical species was recorded from the Congo as Epeira eclipsis by Marx. The British Museum has no W . African representatives of it, but has received it in some abundance from Mashonaland (G.A. K. Marshall). ARANEUS PACHANUS Poc. Araneus pachanus, Poc. Ann. Mag. Nat. Hist. (7) vii. p. 447, pl. xiii. fig. 9 (1898). Loc. Benito Biver (G. L. Bates). Several 2 examples. Previously recorded from Karagesi (Emin Pasha) and Buwenzori (Scott Elliot). This species presents a striking likeness, both in colour, form, and structural details, to the Oriental species that has been described as A. decens, rumpfi, rufofemoralis, &c. But the shape of the vulva seems to separate the African species, the scape being longer and the basal portion much more prominent beneath it. ARANEUS HCEMATOCNEMIS, sp. n. (Plate LVI. figs. 8-8 c.) Colour. Carapace either a uniform blackish brown or reddish brown above, passing into black towards the margins ; upperside of abdomen either uniformly blackish brown or ornamented with yellow on the anterior half-the yellow taking the form sometimes of a median field pointed in front and behind, broadest across the shoulder region, breaking up into spots all round its margin and interrupted along the middle line by an irregular black stripe; sometimes of a sharply defined median stripe, broadest in front and constricted in the middle and at the posterior end ; sometimes of a transverse recurved stripe behind the large sigilla, the extremities of which extend backward as an indistinct yellow stripe on each side circumscribing a median jet-black area which occupies the position of the folium. (In a young specimen the abdomen is testaceous, with jet-black folium and bright yellow median constricted stripe in front of it.) Sides and lower surface of abdomen black. Sternum, labium, maxillae, and mandibles deep blackish brown; legs with coxae and femora uniformly blackish brown; patellae, tibiae, and protarsi darker or lighter red, with their distal ends black, and frequently a median band ; tarsi black, with narrow red basal band. Carapace moderately elevated ; fovea subcircular, with longitu- |