42 



Explanation of Plates. 



Reference Letters. 



a. aitt. = i utcrior aorta. 



abd.g. 4 = fourth pair of ab- 

 dominal ganglia. 



adJ. = fat body. 



a.pnst. = podtorior aorta. 



aff.hr.v. = afferent branchial 

 vessel. 



aff.c.v. = afferent vessel of 

 coxal plate. 



aff.einm.v. = afferent vessel of 

 epimeral plate. 



aff.v. = afferent vessel of leg. 



aff.v'. afferent vessel of an- 

 tenna. 



al.c. = alae cordis. 



al.can. = alimentary canal. 



am.c. = amoeboid corpuscle of 

 blood. 



an. =anus. 



ant. 1 — first antenna. 



ant. 2 = second antenna. 



ani.c. = antennary cone. 



art. 10 = tenth joint of second 

 antenna. 



br. = brain. 



calc. = calceolus. 



c.ep. = cohimnar epithelium of 

 anterior diverticulum. 



con.t. = convoluted tube of ex- 

 cretory organ. 



c.p. = enlarged coxal plate. 



cut'. = basement cuticle of 

 stomach. 



cut". = cuticle lining anterior 

 diverticulum. 



div.a. = anterior diverticulum 



of mid-gut. 

 div.p. = posterior diverticulum 



of mid-gut. 

 eff.hi-.v. = efferent branchial 



vessel. 

 eff.c.v. = efferent vessel of 



coxal plate. 

 ef.v. = efferent vessel of leg. 

 eff.vi. = efferent vessel of an- 

 tenna. 

 eff.epim.v. = efferent vessel of 



epimeral plate. 

 epim.p.l = epimeral plate of 



thorax. 

 epim.p.2 = epimeral plate of 



abdomen. 

 e.s. = end-sac of excretory 



organ. 

 exc.or. = excretory organ. 

 fac.art. = facial artery. 

 fl.sec. = secondary flagellum 



of first antenna. 

 g.d. = reproductive duct. 

 gl. = unicellular glands. 

 gnath.l = first gnathopod. 

 gnath.2 = second gnathopod. 

 gon. = reproductive organ. 

 /( .p. = hepato-pancreatic 



tubes. 

 ht. = heart. 

 long.m. = exterior muscle of 



body. 



long.m'. 

 body. 



= flexor mufiiile of 



