5)3 PAPERS OlJ SPIDERS 



the outer teeth. These characters, together with the short 

 legs and the general structure of the copulatory organs, exclude 

 it from any genus with which I am famihar. There is a bare 

 possibility that it may be congeneric with Hillhousia desolatis 

 Cb., as the female genitalia appear to be of similar type. 

 H. desolans is unknown to me, but if the species misera Cb. be 

 correctly associated with it (which I very much doubt), then 

 certainly rivalis cannot be referred to Hillhoiisia. It therefore 

 becomes necessary to establish a new genus for this species, 

 which I now do under the name Diplocentria. 



To this section in which the inner falcal teeth are five in 

 number, belong (besides Diplocentria and Coryphczus) the two 

 genera Sinfula and Gongylidiellum, but in both genera these 

 teeth are reduced to mere blunt granules. In Oedothorax 

 they are long, slender, and uniformly four in number in both 

 sexes. 



As far as I know, only two of the species enumerated by 

 Mr. Pickard-Cambridge in 1900 under Sintula can enter the 

 genus as now defined — cornigera Bl., the type, a.nd/ausfa Cb. 

 The rest do not belong to this series at all, with the possible 

 exception of pygmcza Cb. Frederici Cb. (which by favour of 

 Dr. Jackson I have had an opportunity of examining) is 

 certainly congeneric with Microneta beata Cb., etc. Pholcom- 

 moides Cb. is a Syedra, while aeria Cb., as the lateral spine on 

 tibia i. indicates, is possibly a congener of Hillhousia misera 

 Cb. The minute species diluta Cb. is evidently intermediate 

 between Microneta and Syedra. From both it differs in 

 the relative size of the eyes and their position. As in the 

 former genus, the fakes are slightly modified in the male 

 and the number of fang-teeth reduced. I propose for it 

 the new genus RJiabdoria. The remaining species when 

 better known — the type specimens are all unique — will 

 probably be found to form a group intermediate between the 

 more typical Microneta and the section of that genus as at 

 present constituted, of which subtilis Cb. is the type — a section 

 which will certainly have to be separated from the true 

 Microneta, from which its members differ in the form of the 



