36 A SYNOPSIS OF THE BRITISH SYMPHVLA 



Scotland. — One specimen, Bishopton, on the Clyde, and 

 several from under stones in a field near Rothbury on the 

 Island of Bute. 



CC. — All selce on scuta minute and weak ; second scutum with only four 

 on the lateral margin and none on the inner margin of process 

 between the setcc before specified. Cerci with a few long outstanding 

 seta on both the upper and loiver margins. Two dorsal sct<e on 

 tarsus of hind leg. 



Scolopendrella delicatula sp. nov. (PI. I., figs. 23-24). 



Material. — Several specimens. 



Allied to S. vulgaris. Slightly more slender and about 

 2'5 mm. long. 



Head almost as in S. isabellce and S. vulgaris, but broader, 

 being scarcely longer than broad. 



Anten?ice with only 17 joints in two specimens and only 14 

 in another. The secondary whorl at the middle of the 

 antennae (viz., on the eighth joint) and the antennal setae are 

 longer than would be expected from the minute and weak 

 setae of the scuta. 



Scuta. — The processes of the second scutum are as long as, 

 or slightly longer than broad, whilst those of the third scutum, 

 which are rather blunt apically, are much shorter than broad. 

 The distance between the former pair of processes is longer 

 than the length, and of the latter about twice the length, of the 

 process. The setae are very minute and weak, and remind 

 one of the vestigial condition seen in subnuda : antero-lateral 

 setae only about two-thirds the length of the processes. Second 

 scutum with four, and third with three weak lateral setae be- 

 tween the antero-lateral and apical ones, and the inner 

 margins of processes without setae, excluding the apical one 

 and one at basal angle. 



Legs. — The legs of the last pair are rather short and robust, 

 the tibia, meta-tarsus, and the tarsus each with two outstand- 

 ing dorsal setae, which are almost as long as the depth of the 



