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Show 254 MR. P. S. ABRAHAM ON THE [Mai*. 6, deep cavities having the margin produced into short, wide, tuberculated sheaths. Branchiae plumose, situated in a cavity very far back, their number not determinable in the specimen ; but apparently they are not very numerous. Oral tentacles linear, pointed. Foot elongate, nearly as broad as the body, rounded and transversely grooved in front, with the upper lamina raised and notched ; acuminated and produced beyond the mantle at the back. Colour of the spirit specimen light greyish brown, blotched with reddish in front of the rhinophores and near the branchiae. Length (in spirit) 21 millims., breadth 8, height 7. Hab. ? DORIS ANALAMPULLA, sp. nov. (Plate XXIX. figs. 8-10.) Body oval, convex. Mantle large, with a thin wavy border extending all round, closely covered with minute, subequal, rounded, granular tubercles. Rhinophores clavate, with rounded apices and minute diagonal laminae extending far down ; their cavities with the margin raised and tuberculated. Branchiae 7, small, indistinctly bipinnate, set, at a little distance, around a long, tubular, bottle-shaped anus, which is situated almost in the interval between the two hinder-most plumes; the whole retractile in a cavity with slightly raised border. Oral tentacles small, linear, and pointed. Foot elliptic-oblong, rounded before and behind, indistinctly grooved in front, flattened at the border, especially posteriorly, where it is nearly coextensive with the end of the mantle. Colour (in spirit) semitransparent white, with a yellowish tinge on the back. Length (in spirit) 15 millims., breadth 10. Hab. Australian seas. DORIS LABIFERA, sp. nov. (Plate XXIX. figs. 13, 14.) Body oblong. Mantle not much extended beyond the foot, but ample in front of the head, covered with close, small, unequal, rounded tubercles, which become, smaller upon the border. Rhinophores short, clavate, with a slight longitudinal depression in front, from which the laminae arise ; their cavities with slightly raised tuberculated margins. Branchiae 6, short, tripinnate, embracing in a complete circle the central short tubular anus ; the divisions between the plumes do not extend far down, except in the case of the two hindermost; the cavity into which they are retractile has the margin raised into a short, tuberculated, denticulated sheath. Oral tentacles small, elongate, conical, and pointed. Foot oblong, truncated and transversely grooved in front, with the upper lamina notched; behind, it is narrrower and rounded, and reaches as far as the posterior edge of the mantle; the border is flattened and minutely tuberculated above. Colour (in spirit) purplish grey, with dark blotches and mottling, produced by a minute purple dotting between the tubercles ; the midribs of the branchiae are violet-grey, from a similar minute freckling; the other parts of the branchiae and the rhinophores are |