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Show 888 MR. G. F. ANGAS ON NEW HELICIDAE. [Nov. 14, much more contracted; the black does not descend so low on the occiput; the back is rather darker in hue ; while, instead of a broad pectoral band of deep black extending from the white throat to the abdomen, there is merely a narrow black gorget between the throat and the breast. I propose therefore to describe the species as CAMPICOLA LIVINGSTONII, n. sp. Campicolae pileato similis, sed minor: fronte vix albo notata : capitis colore nigro non in occiput descendente: tergo cinna-momeo- fusco: gula alba, zona nigra contracta a pectore divisa, neque scuto lato nigro, ut in C. pileato: pectore albo, in rufo-cinnamomeum descendente: abdomine, lateribus, caudaque sic ut in C. pileata. Long, tota 6 poll., alae 3*7, caudae 2*5, rostri a rictu 0*7, tarsi 1*15. Hab. Murchison Falls, Zambesi River. Mus. H. B. Tristram. 11. Descriptions of Six N e w Species of Helicida, from the Solomon Islands, Western Pacific. By G E O R G E F R E N CH A N G A S , F.L.S., C.M.Z.S. (Plate XLIII.) 1. GEOTROCHUS GAMELIA. (Pl. XLIII. figs. 1, 2, 3.) Shell imperforate, flatly conical, thin, obliquely, faintly, and irregularly plicately striated, white, rather broadly banded with dark brown at the suture and periphery, the lower edge of the sutural band sometimes diffused and paler, and with a spiral band of the same colour at the base; spire conical, rather obtuse at the apex ; whorls five, nearly flat, the last more or less descending, subangulate at the periphery, convex at the base ; columella sloping, moderately wide; aperture diagonal, truncately oval; peristome thin, the margins distant, the right flexuous and slightly expanded, the basal slightly reflexed. Variety. With the basal band very broad, columella and lip brown, and an additional narrow band on the three lower whorls. Diam. maj. 12, min. 10, alt. 10 lin. Hab. St. Stephen Island and Ysabel Island, Solomon group. 2. GEOTROCHUS EROS. (Pl. XLIII. figs. 4, 5, 6.) Shell umbilicated, subtrochiform, rather solid, obliquely striated, on the last whorl decussated with very fine sloping rugose striae, pale fawn-colour, banded with white at the periphery, and ornamented with two rows of irregular chestnut blotches; spire conoidal, apex rather obtuse and rose-coloured; whorls four and a half, slightly convex, the last a little descending, keeled at the periphery, convex |