508 R. I. POCOCK 



Order HELMINTHOMORPHA. 



Family FULYDESMIDAE. 



7. Polyclesmus platynotus, sp. n. 



{FUj. 10) 



Colour (in alcohol). A uniform greyish-brown above; lower 

 surface and legs flavous: antennae darker than legs, distally 

 infuscate. 



9 . Body about equal in length to that of P. complanatua 

 (Linn.j, narrowed anteriorly. Antennae a little wider than 

 the body- width. First ter gite as wide or a little wider than 

 the head and mandibles, with very distinct keels, the anterior 

 border straight, anterior angles widely rounded, posterior angles 

 squared, posterior border of keels directed obliquely forwards, 

 the upper surface scarcely sculptured, with a posterior transverse 

 depression , and some scattered granules. The rest of the terga 

 flat, with very wide keels, of which those at the anterior end 

 of the body are slightly or very noticeably elevated ; the areo- 

 late sculpturing weakly defined and low, much less noticeable 

 than in P. complanatus^ keel of the 5^'' segment with its poste- 

 rior border nearly in a line with the posterior border of the 

 middle area; posterior border of the rest distinctly emarginate, 

 and directed more and more backwards towards the hinder end 

 of the body; anterior angle of keels squared or at least not 

 rounded, the posterior angle from the 6^^^ backwards becoming 

 more and more acute towards the hinder end of the body, the 

 lateral border of the pore-bearing keels with four teetli or 

 notches, the others with three, the anterior keels more strongly 

 toothed than the posterior. 



Legs longer as compared with the length of the body than 

 in P. complanatus. 



c/'. A little thinner than 9 , keels higher, copulatory feet very 

 like that of English examples of P. complanatm, strongly geni- 

 culate, and terminating in an anterior and a posterior process ; 



