346 



THE ANATOMY OF INVERTEBRATED ANIMALS. 



mandible is articulated with the truncated edge of the lateral 

 part of the skeleton of the head, beneatli the eyes, which is 

 termed the gena, in such a manner as to be freely movable 



Fig. 97.—Blatfn orienfaUf>.—l., TI. Side and front views of the bead : a, the epicranial 

 suture, at the ends of the lateral branches of which are b, the fenestrte;/. the 

 antennse ; g, the eyes ; /ft, the labruni ; mw, the mandible; co, the cardo ; k. tlie 

 stipes ; ga. the jralea ; ;)/. the palpns of the maxilla ; p. the palpus ; q, the men- 

 turn and snbmentnm of the labium; ^•, the marsrins of the occipital foramen : ?c, 

 inferior cervical sclorites ; fc, lateral cervical sclerites; jm, pronotum. Til. The 

 labium and the ri<rht maxilla, viewed from below; letters as before, except /a, 

 lacinia of the maxilla ; 2Jff-, paraglossse ; II, ligula ; m, mentum ; sm, submentum of 

 the labium. 



toward and from the median line, but in no other direction. 

 The proximal end of the maxilla (Fig. 97, III.) is formed by 

 an elongated basal articulation, the cardo^ which is directed 

 transversely to the axis of the head, and is connected w^ith 

 the inferior margin of the epicranium, or rather with a thin 

 skeletal band which runs round the posterior margin of the 



