548 IV AH TRAGARDH 



about 10 pairs of hairs, and at the posterior margin 3 pairs. 



Legs. Legs IV as long as the bedy ; legs I and III of equal 

 length, slightly shorter (3 : 4) ; legs II shortest. Coxse I to III 

 provided with one pair of very stout, horn-shaped bristles, 

 inserted distally at the posterior side and directed backwards. 

 Fémur, genu and tibia of the respective pairs of subequal 

 length; ail femora with basifemora, and ail tars with basitarsi. 



The hairs of the legs are arranged in the saine way as in 

 the Pteroptinœ, viz. chiefly on the dorsal and ventral sides, and 

 ail point more or less upwards, respectively downwards. 



Tarsi I richly provided with tactile hairs and sensillaeat 

 the top (fig. 44) ; supraunguinal and siibiinguinal lobes coalesced 

 into a 5-lobated sucker-plate. On ambulacres I I hâve not 

 found any claws; on II to IV there are slender claws. 



Systematic position, g. armatus Tgdh occupies an inter- 

 mediate position between Gaynasoides and Pœcilochirus, and 

 forms a Connecting link between the two. 



With Gamasoides it has the following characteristics in 

 common : two dorsal shields, calcar on upper jaw of chela 

 mandibuli. It difïers from it in the shape of the epistoma, 

 which is triangular, as in Pœcilochirus, through the large, 

 well chitinized sternal shield which in G. carahi is only partly 

 (at the sides) chitinized, and through the 7 pairs of large bristles 

 found on the hypostoma, the sternal shield and on coxse I 

 to III. In the latter respect it exceeds both P. jimetarius 

 (J. Miill.) and P. ovatus Berl., the former having only sternal 

 (but 4 pairs of them) and hypostomatic bristles of the peculiar 

 shape ; and the latter only I pair of such hypostomatic bristles. 



From both gênera it difïers in the shape of the upper jaw 

 of the mandible, this being wholly coalesced with the calcar 

 and edentate. 



BiOLOGY. Both Poecilochirus and Gamasoides hâve been 

 found exclusively on beetles, and we may safely présume 



