'lOS ^Ir. R. I. Pucdck on a neto Species of 



lon^' spim-s ami fuinislied with a distinct tubercle externallv ; 

 tiie ///'/(/ liairy beneath, but armed externally antl internally 

 witli about two rows of strong spines ; the tarsuft similarly 

 armed, the claw with a large basal tootli, which is itself 

 also armed. The legs of the anterior pair armed like the 

 palpi, except that the inner surfaces of the femur and patelhi 

 are not armed with either spines or spiniform hairs and the 

 anterior spines on the tibia are fewer. The second leg is, 

 like the first, stout, the spines on the tibia still more reduced, 

 those on the anterior surface becoming shorter and those on 

 the posterior surface setiform and fewer. In the third leg 

 there are a few small spines interspersed amongst the hairs on 

 the anterior aspect of the patella and on the anterior and 

 posterior aspects of the tibia ; a few, too, only remain upon the 

 proximal segment of the tarsus, which is, however, armed 

 beneath with two strong long spurs. In the fourth leg the 

 patella is armed with a few short spines in front and one 

 behind ; the tibia is furnished with setiform spines beneath 

 and the proximal tarsal segment with a few long spines 

 beneath. The claws of all the legs are armed with a large 

 basal tooth, behind which, except in the posterior claws of 

 the first and second leg, there is a second minute tooth. 



The abdomen high and rounded. The anterior spinners 

 shorter than the basal segment of the posterior, which are 

 stout, three-jointed, and conical. 



Length of carapace 6'5 millim., width 6; length of abdo- 

 men 8, width 6 ; length of maxillipede 12-8, of first leg 15*2, 

 of second and third 13*8, of fourth 20. 



Of this interesting genus Pseudidiopsj with which Den- 

 dricon of Cambridge is synonymous, two species have been 

 described *, and these are very probably identical. 



Simon's original specimens were from Cayenne, and he 

 has subsequently obtained the species from Venezuela. Un- 

 fortunately his description is very brief and is not accom- 

 panied by figures ; so it is only possible to point out that this 

 torm from Trinidad appears todifier from \\\^ opifex'wx having 

 the legs flavous and ringed with black. By the same 

 character it may be recognized from the British-.AIuseum 

 example fron) Bahia, which iMr. Cambridge has described as 

 Dendricon rastratum in the Proc. Zool. Soc. 1890, p. G23. 



* J'studidiops ojrifex, Siiuou, Ann. Soc. Ent. Fr. (6) ix. p. 215 (1889). 



Jjendricon rastratum, Cambridge, I'roc. Zool. Soc. ]8e9, p. 2oU. 

 (The descriplioii t>i Pseudidiops appeared r.n Sept. 11th, that of Deti- 

 firtcf,)i r.n r>ct. J.«t. The t'nimer tiuT-.-fure has the piioiitv.j 



