1896.] SPIDERS TEOSI THE LOWBE AMAZONS. 721 



!P. " Territelarias brazileiras deseriptas na grande obra do Conde 

 Eugen Ton Keyserling sobre as ' Aranhas da America 

 (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 com- 

 puted at 248. 



These brief extracts from Dr. Groeldi'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 Therapliosidin of South America. 1 have to thank Dr. Goeldi 

 for the opportunity he has given me of perusing these publications 

 during my brief visit to the Para Museum in January 1896. 



Suborder MYGALOMOEPHuE, Pocock, Oct. 1892. 



It is not altogether easy to decide which of the various subordinal 

 names proposed for this group ot' Spiders is the most suitable and 

 therefore to bo retained. We have first of all the ancient division of 

 the order by Walckenaer into two large suborders under the names 

 " Therojyhoses" and " Araiffnies" (ins. A])t. tome i. 1837, p. 38). 

 These are of the same value as the " Mygcdees " 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 " Quadripulr)ionaires" and '^ Bipulmonaires," by 

 Dufour (" Arach. Quadripulmonaires," Ann. Gen. Sci. Phys. vol. iv. 

 1820), equivalent to the Tetrapneumones and Dipneumones o£ 

 Latreille, these names being of course based upon the possession 

 of one pair or two pairs of lung-books. 



Later, in 1870, wo find the whole order subdivided into seven 

 suborders — the Orhilelarice, Relitelarim, Tubitelarice, Territelarice, 

 Citlgradce, Lateri/jradce, and Scdiigrad<e — by Dr. Thorell, corre- 

 sponding, as he himself tells us, with the almost similarly named 

 families of Latreille, of which the suborder Territelarim corresponds 

 to the Therophoses, MygaUes, and Tetrapnemnones of the earlier 

 authors. 



In his Hist. Nat. Araign. i., Oct. 1892, p. 61, M. Simon recognizes 

 two suborders under the double names " Aranew Therapliosw " and 

 " Aranew Verm" — the former including Liphisiius and the families 

 Aviculariidm and Atypidce ; the latter the HypochilidcB (a tetra- 

 pneumonous form) and every other known family. 



In October of the same year Mr. E.. I. Pocock, in a paper on 

 the Classification of Spiders (Ann. Mag. Nat. Hist. ser. 6, x. 

 p. 30G), has divided the order Araneae into two main divisions — 

 the Mesoilielce, including the family Liphistiidce, and the Opistho- 

 thelcn, including every other known family. These two divisions 

 are based upon the position of the spinning-appendages in the 

 middle of the ventral area or at the distal end of the abdomen. 



