AMPHIPODA. 



Terminology, 



{Htx VI. 1)'. 



Divisions of Body 



C Cepluiloii 



Ms. Mesosome 



MtB Metasome 



Us. Urosome 



a'. 



a'. 



L. 



I. 



M. 



mp. 



P^-P' 



Anterior Division 

 Posterior Division. 



Appendages of Cephalon: 



Snperior antenuse (peduncle, flagolluni, secondary appendage). 



Inferior aiitenutc (liasal joint (b), olfactory spine (oY), i)edunck', (lagelluni). 



Anterior lip (buccal plate, epistonie). 



Posterior lip (lobes, lateral corners). 



Mandibles (body (b), masticatory part, cutting 



edge (c), molar exi)an8ion (ni), palp (p)). 



First iiair of maxilla; (basal part (b), basal Buccal mass. 



lobe (!'), masticatory lobe (1-), palp (p)). 



Second pair of niaxilhv (basal part, inner and 



outer lobes). 



Maxillipeds (basal part (b), basal lobes (P), 



masticatory lobes (1'^), palj) (p)). 



(Eyes Rostrum, Lateral corners). 



Appendages of Mesosome : 

 Pirst pair of legs, or anterior gnatbopoda 

 .Second pair of legs, or posterior gnatbopoda. 

 Tliird to seventb pairs of legs, or tirst to (iflli pairs of pereiijpoda. 



Joints in all tlie legs: 

 1. coxal, 2. basal, 3. ischial, 4. meral, 5 carpal, G propodaL 7. terminal, or dactylus. 



Appendages to the legs: 

 br. branchial lamella, i. incubatory lamella. 



') Th« same lettering is used iu all the plates tu dosiguatc Iho currcsiiimiling [larts. 



