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Show 1896.] SPIDERS FROM THE LOWER AMAZONS. 721 P. " Territelarias brazileiras descriptas na grande obra do Conde Eugen von Keyserling sobre as ' Aranhas da A merica (1892).'" (Fourteen species, four new ones.) G. " Territelarias brazileiras segundo a obra do Dr. Eugene Simon, ' Historia natural dos Arachnidos ' (1892-1894)." The total number of species belonging to South America is computed at 248. These brief extracts from Dr. Goeldi's paper, which is written in Portuguese, will give some idea of its value to students in Brazil desirous of becoming acquainted with work already done amongst the Theraphosidae of South America. 1 have to thank Dr. Goeldi for the opportunity he has given m e of perusing these publications during m y brief visit to the Para Museum in January 1896. Suborder MYGALOMOEPH^, Pocock, Oct. 1892. It is not altogether easy to decide which of the various subordinal names proposed for this group of Spiders is the most suitable and therefore to be retained. W e have first of all the ancient division of the order by Walckenaer into two large suborders under the names " Therophoses" and " Araignees" (Ins. Apt. tome i. 1837, p. 38). These are of the same value as the " Mygalees'" and " Aranees" of Duges (" Observation sur les Araueides," Ann. Sci. Nat. ser. 2, tome vi. 1836, p. 162). Next we have the subordinal division made, under the names of " Quadripulmonaires" and "Blpulmonalres," by Dufour (" Arach. Quadripulmonaires," Ann. Gen. Sci. Phys. vol. iv. 1820), equivalent to the Tetrapneumones and Dlpneumones of Latreille, these names being of course based upon the possession of one pair or two pairs of lung-books. Later, in 1870, we find the whole order subdivided into seven suborders-the Orbitelarlce, Retltelarlce, Tubitelarlce, Territelarlce, Cltigraclce, Laterlgraclce, and Saltigradce-by Dr. Thorell, corresponding, as he himself tells us, with the almost similarly named families of Latreille, of which the suborder Territelarlce corresponds to the Therophoses, Mygalees, and Tetrapneumones of the earlier authors. In his Hist. Nat. Araign. i'., Oct. 1892, p. 61, M . Simon recognizes two suborders under the double names " Araneae Theraphosce " and " Araneae Verce "-the former including Liphlstlus and the families Avicularlidae and Atypidce; the latter the Hypochllldce (a tetra-pneumonous form) and every other known family. In October of the same year Mr. B. I. Pocock, in a paper on the Classification of Spiders (Ann. Mag. Nat. Hist. ser. 6, x. p. 306), has divided the order Araneae into two main divisions- the Mesothelce, including the family Llphlstildce, and the Oplstho-thelae, including every other known family. These two divisions are based upon the position of tbe spinning-appendages in the middle of the ventral area or at the distal end of the abdomen. |