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Show 1877.] COLLECTION M A D E BY H.M.S. 'PETEREL.' 75 are granulated on each side, but the transverse series of submarginal granules are wanting. VI. MYRIOPODA and ARACHNIDA. By A. G. BUTLER. MYRIOPODA. 1. SCOLOPENDRA COMPLANATA. Scolopendra complanata, Newport, Ann. & Mag. Nat. Hist. 1st ser. xiii. p. 99. One example, Charles Island. ARACHNIDA. 1. ANDROCTONUS AMERICUS. Androctonus americus, Linnaeus, Syst. Nat. 2, p. 1038. no. 4. One example, Charles Island. 2. LYCOSA INDOMITA. Lycosa indomita, Nicolet, Gay's Hist. Fis. de Chili, Aran. pl. 2. fig. 12 (1854). One example, Charles Island. Previously known from Chili. 3. THERIDION CAROLINUM, n.sp. (Plate XIII. figs. 3, 3a, 3\) 2 . Cephalothorax testaceous, cordiform, truncate in front, caput ascending, about half the width of the pectoral region, separated by an oblique depressed line on each side, and having a central longitudinal brownish line; eyes amber-coloured with black margins, arranged in two very slightly convex rows across the anterior part of the caput; the four central eyes forming a nearly regular square, the posterior pair being larger; the lateral pairs placed obliquely ; abdomen ovate, black, with a dorsal longitudinal moniliform band, and three converging oblique lateral stripes (not reaching the central band) whitish ; legs ochraceous, setose; tibiae banded with brown, palpi rather slender, testaceous, brownish at the tips; maxillae and falces testaceous; pectoral plate scutiform, testaceous in the middle, brown on each side ; ventral surface of abdomen with a broad longitudinal irregular whitish band, and a marginal streak of the same colour on each side. Length 7 millims; relative length of legs 1, 4, 2, 3. One example, Charles Island. 4. LATRODECTUS APICALIS, n. sp. (Plate XIII. figs. 5, 5a, 5b.) 2 . Cephalothorax shining piceous, cordiform, truncate in front, caput ascending, separated by a strongly defined depressed oblique line on each side ; anterior eyes blackish, posterior amber-yellow, arranged in two convex rows on the front of the caput; the four central eyes forming a nearly regular quadrangle, the posterior pair being larger ; the lateral pairs placed rather further back and |