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Show 250 INSECTA. GLOMEnxs, Lat. Resembling Onisci; oval, and rolling into a ball; the body conv above, and concave undemeath, w·l t h a range o f l·t tt1 e scales analoex. gous to the lateral divisions of the Trilobites along each of its in. fcrior sides. It is composed, exclusive of the head, of but twelve segments, the first and narrowest of which forms a sort of semicir. cular transverse colla•·; the following and the last are the largest of all; the latter is arched and rounded at the end. There are thirty. four feet in the female, and thirty-two in the male, his sexual organs replacing the pair that is deficient. These animals are terrestrial, and live under stones in hilly places(l). luLus, Lin. The body of the true Iuli is cylindrical and very long, and has no ridge or trenchant edge on the sides of the annuli; they roll them. selves up spirally. The larger species live on land, particularly in the woods and sandy places, and diffuse a very disagreeable odour. The smallest ones feed on fruit, or the roots and leaves of esculent vegetables. Others are found under the bark of trees, in moss, &c. 1. maximus, L.; Marcgr., Bras., p. 255. Peculiar to South Americn, and is &even inches long. 1. sabulosus, L.; Schreff. Elem. En tom., lxxiii; /. fasciatus, De Geer, Insect. VII, xxxvi, 9, 10; Leach, Zool. Miscell., cxxxiii. About sixteen lines in length, of a blackish-brown, with two reddish lines along the back; fifty-four segments, the penultimate terminated by a stout point with a horny and hairy extremity. Inhabits Europe. /. terrestris, L.; Geoff., Insect. II, xxii, 5. A fourth smaller; bluish-cinereous, picked in with light yellowish; forty-two to forty-seven segments. Inhabits Europe with the sabulosus(2). (1) Iulus ovali8, L.; Gronov ., Zooph., pl. XVII, 4, 5;-0niBcus zonatu8, Panz. Fam. Insect. Germ., IX, xxiii; Glomeris marginata, Leach, Zoo]. Miscell., CXXXII;-Oniscua pustulatus, Fab .; Panz., lb., XXH. (2) See the two memoit'S of Savi already quoted, and Leach, Zool. Miscell.,ill, for an account of these two species and some others that inhabit England. Add Iulua indua, L.; De Gecr, VII, xliii, 7; Seb., Mus. II, xxiv, 4, 5;-Seb., Mus.!, lxxxi, 5 ;-Schrret., A bhandl., I, iii, 7. [Add of the American species the L im· prusua, punctatua, annulatua, lactariw, marginatua, and pt~llua. .JJ.m. Ed.] MYUlAPODA. 251 PoLYDEsMus, Lat. The Polydesmi resemble the Iuli in the linear form of their body, d the spiral manner in which they roll up their body; but the seg: ents are compressed on the inferior sides. and have a proje.cting ridgeabove. They are found on stones, and most commonly in wet places( I). The species with apparent eyes form the genus Craspedoaoma of Leach(2). The others have a very soft, membranous body, terminated by pencils of little scales. Their antennre are equal. Such is the PoLLYXENus, Lat., Which as yet comprises but a single species, placed among the Scolopendrre-Sc.lagura, L.,-by Linnreus, Geoffroy and Fabricius. It is the lute a queue en pinceau of De Geer, Insect., VII, xnvi, 1, 2, 3; Zool. :Miscel., cxxxv, B. Very small, oblong, with bunches of little scales on the sides, and a white pencil at the posterior extremity of the body. It has twelve pairs of feet placed on as many semi-annuli. Inhabits cracks in walls, and under pieces of bark(3). FAMILY II. CHILOPODA(4). The antcnnre of the Chilopoda are more slender towards the extremity, and consist of fourteen joints and upwards; their mouth is composed of two mandibles furnishe~ with a little palpiform appendage, which seem to have been soldered in the middle, and terminate like the bowl of a spoon with den- (1) The Iuli complanatus (Zool. Miscell. CXXXV, A), deprusa, stigma, triden· talus, Fab.; his Scolopendra:? dQ1'salis and clypeata. [Amer. species, P. serratus, granula.tua, Say, and the Iulus virginiemis, Drury. .11m. Ed.] (2) The species, unknown before Leach, appear to be proper to England. See pl. cxuiv of hi11 Zoological Miscellany, vol. III. (3) There is a second species, P. fasciculatus, Say, that inhabits the southern section of the United States. See Journ. Ac. Nat. Sc. of Phil. II, part I, p. 108. .B1a.Ed. (4) CIIILOPODA., Lat. or the genus Scolopendra, Lin. &c. |