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Show 428 MR. A. G. BUTLER ON THE GENUS ACROSOMA. [Apr. 1, Walckenaer says its general form is somewhat similar to that of Gasteracantha globulata. 55. ACROSOMA PENTACANTHUM. Plectana pentacantha, Walckenaer, Apt. ii. p. 170. n. 31 (1837). Para. B.M. 56. ACROSOMA STELLIGERUM. Acrosoma stelligerum, Thorell, (Efvers. Vetensk. Akad. Forhandl. xvi. p. 301.ii. 3 (1859, edit. 1860) ; Eug. Resa, Zool. Arachn. p. 26 (1868). Hab. ? Abdomen with five red spines ; does not seem to differ from the P. pentacantha of Walckenaer. 57. ACROSOMA SLOANII. Plectana sloanii, Walckenaer, Apt. ii. p. 200. n. 76 (1837-39). Araneus cancriformis major, Sloane, Hist, of Jamaica, ii. p. 197. n. 14, pl. 235. f. 3. Jamaica. 58. ACROSOMA TRANSITORIUM. Acrosoma transitorium, Koch, Arachn. vi. p. 119, pl. 208. f. 518 (1839). "Brazils" (Koch). A very distinct form, with long oblique process terminating the abdomen above. 59. ACROSOMA AFFINE. Acrosoma affine, Koch, Arachn. vi. p. 131, pl. 210. f. 525 (1839). " Brazils " (Koch). A species with broad abdomen, having somewhat the character of a Gasteracantha. 60. ACROSOMA PATRUELA. Acrosoma patruela, Koch, Arachn. vi. p. 130, pl. 210. f. 524 (1839). "Brazils" (Koch). A species with broad abdomen, terminating at each posterior angle in two short spines, 61. ACROSOMA SACCATUM. Acrosoma saccatum, Koch, Arachn. iii. p. 59, pl. 93. f. 212 (1836). "Brazils" (Koch). Closely allied to A. patruela of Koch. MICRATHENA, Sundevall. 1. MICRATHENA CLYPEATA. Epeira clypeata, Walckenaer, Tabl. des Aran. p. 67. n. 61; Hist. Nat. des Aran. i. f. 3. |