1870.] MR. G. F. ANGAS ON NEW HELICES. 265 underside of the abdomen is of a uniform blackish brown colour with an indistinct pale longitudinal line on eitber side. The spinners of the inferior pair are strong but short, though longer than those of the superior pair. The female resembles the male in general colour and markings ; the sides of the abdomen, however, on the hinder half are paler than those of the male, and are marked with two differently sized oblique irre-gular blackish markings ; the genital aperture is simple, but of a dis-tinctive form. Eight males and one female were received from the Rev. A. E. Eaton, by whom they were found on Kerguelen's Land under stones, and running also at times on the ground. This spider (as above observed), the only one found on the island, is of great interest, being unmistakably allied to Tegeuaria and Agelena, though quite distinct from both. EXPLANATION OF PLATE XIX. Fig. 1. Torynophora serrata, sp. n. a, up per side, highly magnified ; b, underside without the legs ; c, profile ; d, leg of first pair ; e, extremity of tarsus of ditto : f, palpi ; g, extre-mity of one of the cephalic projections, highly magnified ; h, one of the clavate hairs on abdomen, highly magnified; k, mouth-parts on under-side, highly magnified ; o, natural length. Fig. 2. Scirus pallidas, sp. n. a, upperside; b, upperside of caput and mouth-parts, more enlarged, showing the position of the eyes ; c, natural length. Fig. 3. Hyalomma puta, sp. n. a, upperside ; b, underside without legs ; c, caput, palpi, and falces, more enlarged ; d, natural length. Fig. 4. Pcecilophysis kerguelenensis, sp. n. a, upperside ; b, underside without legs ; c, profile without legs or palpi ; d, extremity of tarsus of leg of second pair ; e, digital joint of palpus ; g, portion of falces and maxillaj in profile ; f, natural length. Fig. 5. Myro kerguelenensis, sp. n. a, upperside ; b, fore part of caput and falces, from the front, showing the position of the eyes ; c, profile ; d, maxilla; and labium ; e, g, left palpus in two positions ; h, genital aperture ( 5 ) ; /, natural length. 2. Descriptions of Four new Species of Helix ; with some notes on Helix angasiana of Pfeiffer. By George French Angas.F.L.S., C.M.Z.S. [Received January 26, 1876.] (Plate XX.) Helix Beatrix, n. sp. (Plate XX. figs. 1 to 5.) Shell narrowly perforate, ovately conical, rather thin, not shining, finely obliquely striated, variously coloured ; spire conoidal ; whorls 6|, rounded, narrowly margined at the sutures, the last non-descend-ing, somewhat inflated and obtusely subangulated at the periphery in front, moderately convex at the base ; aperture subcircular ; the
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