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EXPLANATION OF LETTERING. 
a.g.c., appendage of genital cone; a.m.c., adult mouth-capsule; c., larval cuticle; d.c., dermal collar 
of genital cone; d.g., dorsal gutter; e.l.c., external leaf-crown; g.c., genital cone; i.l.c., internal 
leaf-crown; l., ventral lip of genital cone; l.oe.f., oesophageal funnel of larva; l.p., lateral 
papilla of head; m.c., mouth-collar; m.ca., mouth-capsule; oe., oesophagus; oe.f., oesophageal 
funnel; p.m.c., provisional mouth-capsule of larva; s.p., submedian head papilla; sp., spicule; 
t., tooth. 
