REPORT OX THE CRUSTACEA MACRTTRA, 



Posterior lip of authors. Membranous appendage that lies behind and over the mandibles 



(Huxley). 

 Mandible, o-iayur, a little jaw (after Westwood and Bate). 

 Appendage attached to mandible ; from <rwa<£»;s, continuation, rdvs, foot This name is 



suggested as being homologically true. Popularly called " palp." 

 Internal process of the mandible ( Huxley V 



Cutting margin of the mandible ; from ifraXis, scissors, a-rofia, mouth. 

 Or maxilla. 

 Or maxilla. 

 Or 1st rnaxilliped. 

 First joint of any appendage from a to v abbreviated from eoxagnathite and coxapodite 



of Milne-Edwards. 



Basis, 



Second joint of any appendage from « to 



Milne-Edwards. 



Third do. do. 



Fourth do. do. 



Fifth do. do. 



Sixth do. do. 



Seventh do. do. 



v, instead of basignathite and basipodite of 



ischiognathite and ischiopodite do. 



merognathite and meropodite do. 



carpognathite and carpopodite do. 



prognathite and propodite do. 



dactylognathite and dactylopodite do. 



Branch of any particular joint, from Ik^vo-is, as coxecphysis, a branch springing from 

 the coxa ; basecphysis, a branch springing from the base. The former is svnony- 

 mous with epignathe and epipodite of Milne-Edwards, and sometimes with the 

 podobranchia of Huxley, when it is connected with a branchial plume as in 

 Homarus, &c. The latter (basecphysis) is synonymous with exognathe and exo- 

 podite of Milne-Edwards, and is preferred because it more clearly identifies the true 

 relative position of the structure homologically. 



The branchial lash ; from p.do-nf, whip, and /Spay^m, gills. It is synonymous with epi- 

 podite and epignathe of Milne-Edwards, and sometimes part of the podobranchia of 

 Huxley, and with apodemata, MacCoy, and flabellum of old authors. 



A branchial plume attached to the coxa (Huxley). 



A branchial plume attached to the membranous articulation between the coxa and the 

 body of the animal (Huxley). 



A branchial plume issuing between the somites of the pereion (Huxley). 



Tubercle attached to the last somite of the pereion that secures the carapace posteriorly ; 

 from pereion and xAeis, bolt 



Tubercle attached to the posterior margin of the carapace ; from -iX-rq, shield, and 

 (cAeis, bolt. 



Tubercle attached to the first somite of the pleon, and precludes the carapace from being 

 raised posteriorly. 



Membranous development attached to the first pair of pleopoda in the male; from -<frao>ta, 

 a curtain. 



Structure on the ventral surface of the pereion peculiar to females ; from (kkvicov. 



A small process attached to the inner branch of the pleopod ; from orvAos, style, and 

 d/xj8Ai ; 5, blunt. 



Small hooks attached to the stylamblus, from kikotvAos, a curl (Sara). 



The division in the outer branch of the posterior or caudal pleopod ; from Siatpecris, 

 division. 



The posterior pair of pleopoda and the telson, when these parts are developed as in the 

 Macrura ; from pirn's, a fan, and olpd, taiL 



Terminal somite of the pleon. 



Name used for the young just as it quits the ovum, in whatever stage. 



Throughout the Report the somites are recognised by capitals, and the corresponding 

 appendages by small letters. 



