a synopsis of the british paijropoda 655 



Order PAUROPODA. 



Family PAUROPODID^. 



Genus STYLOPAUROPUS (Cook), Hansen. . 



The lower antennal branch with the fore margin consider- 

 ably longer than the hind, and its anterior flagellum longer 

 than the other; the globulus placed upon a stalk which is 

 much longer than the transverse diameter of that organ. 

 Sternum of the anal segment with the posterior pair of setae 

 only. 



Stylopauropus pedunculatus (Lubbock). (Plate xix., 

 figs. II and 16-18). 



There are only two species, so that the following char- 

 acters, most of which are given by Hansen in his conspectus, 

 will at once distinguish 6*. pedunculatus from 6". pubescens, 

 Hansen. 



Size larger (1*5 to 17 mm.), S. pedunculatus being the 

 largest known species of the order. Stalk of the antennal 

 globulus obconical. Intermediate hairs in the posterior row 

 on the head as long as, or slightly longer than, the eye mark. 

 Intermediate dorsal setae on the anal segment a little shorter 

 than the lateral pair. Inner branches of the anal plate rather 

 close to each other, and outer branches pointed at tip and 

 diverging slightly laterally. Body practically naked. 



There is a trace of pubescence, very faint, on the outer 

 edge of the legs, but otherwise the animal is devoid of 

 pubescence. 



I have again found this little animal in profusion in the 

 Dene near Hylton, and have had specimens of all ages under 

 observation at home. They are hardy little animals, and are 

 easily kept in confinement if care is taken to keep them in a 

 moist place. 



I have also a single specimen taken under a stone in a 

 damp wood in the Derwent Valley near Winlaton Mill. 



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