lO 



CRUSTACEA 



maxillipedes of masticatory functions., Thus in the Decapoda 

 the first maxillipede is decidedly foliaceous owing to the expanded 



Fig. 1. — Appendages of Crustacea (A-G) and Tiiloliita (H). A, First maxillipede of 

 AstacKS ■. B, second maxilla of Astocus ; C, second walkin,i;-leg of Asici'iis ; D, 

 thoracic limb of Branchipns ; E, first maxillii)e(!e of Mijsis ; F, first maxillipede of 

 Gnathophaiisia ; G, thoracic limb of Nehalia ; H, tlioracic limb of Triarthrns. 

 bp, Basipodite ; br, bract ; cp, cai'popodite ; c.rp, coxopodite ; cx.s, coxopoditic 

 setae ; d}^, dactylopodite ; end, endopodite ; ep, epipodite ; ex, exopodite ; yi, 

 ischiopodite ; vip, meropodite ; 2U^, propodite ; 1-6, the six endites. 



" gnatholiases " (Fig. 1, A, hj), co:])), and the second maxilli- 

 pedes are flattened, with their basal joints somewhat expanded 

 and furnished with biting hairs ; but in the " Schizopoda " 



