136 



Fig. 90.— The first twelve segments of Polyophthalmus pictus, seen from below (after 

 Mayer), The Roman numerals indicate the segments. St, Papills on the head; 

 KS, head; au, head eye; $.au, side c^yes; 01, upper lip; Ul, under lip; v.ph 

 pharyngeal vein ; V.subioita, anterior ventral vein ; V.d.l'-'', veins connecting the 

 superior lateral and vessels ; sepi'-\ intcrsegmentary membranes ; m.ocs.l, lateral 

 muscle of the oesophagus; Y.ann, pulsating circular vessel; Md.di\ stomach- 

 glands; F.v-i, vi-in connecting the inferior and lateral blood-vessels ; Aid, stomach; 

 Bm, muscles of the hairs ; G, brain ; fl.o, ciliated organ ; qm, transverse muscle. 



