384 



Fig. 287. Mouth parts of Machilis (Petrobiiis) maritimus. After Imms. 

 I, Mandible. 2, Maxilla. 3, Hypopharynx (h.) and superlinguae {sL). 

 4, Labium, c. cardo; g. galea; gl. glossa; /. lacinia; m. mentum; mx.p. 

 maxillary palp; pf. palpifer; pg. paraglossa; pm. prementum; pgr. palpiger; 

 s. stipes; sm. submentum. 



Fig. 288 . To show the resemblance between the insectan maxilla and labium and 

 the biramous limb of the Crustacea. From Imms, after Hansen. A, Biramous 

 crustacean appendage. B, Insectan maxilla. C, Maxillipeds of a Gammarid 

 crustacean. D, Insectan labium, end., end.i endites; en. endopodite; ep. 

 epipodite; ex. exopodite: sm. submentum. 



