RES LIGUSTIGAE 



XXI. 



CoiitriliQtioDS to our kiiowledii'e of Ilio Diplopoda of Lijiaria, by r. t. 

 pococK of ilie British (Nat. Hist.) Museuui. 



In Vol. XXIX, pp. 59-68 of these Annali, I published an 

 account of a series of Chilopoda obtained by Mr. Oldfield Tho- 

 mas in Liguria in the autumn of 1887. The present paper is 

 a report upon the Diplopoda collected at the same time. But 

 since the remarks that were made in my previous paper re- 

 specting the localities where the specimens were obtained, 

 apply equally well to the following contribution, no fiu'ther 

 words of introduction are necessary upon the present occasion. 



Class DIPLOPODA. 



Suh class P«e]aphtJi.;iiatha . 



Family FULYXEXIDAE. 



Two genera of this family may I think be recognised in Italy. 

 I propose to define them as follows : 



a. Antennae short, the apical segment minute; /cy.s short with 

 trilobed tarsal claw. Tenja furnished with a double row 

 of setae along the posterior border .... Polyxenus 



Type kif/urus (Linn.). 



b. Anteimae long, the apical segment about as long as 

 the penultimate; legs long, claw simple, not trilobed. 

 Ter(ja furnished with a single posterior row of setae 

 Lophoproclm, gen. nov. 



Type coeciiSj sp. n. 

 contains also PoIìjxomhs lueidus, Chalande. 



