Outlines of zoology . exopodite. 6 ist Maxillipedes ? Thin protopodite, small en- (foot-jaws). dopodite, large exopodite. 7 2nd Maxillipedes. ? Two - jointed protopodite,five - jointed endopodite,long exopodite. 8 3rd Maxillipedes. Masticatory, Two - jointed protopodite,large five-jointed endopo- dite with strong teeth on t^ its ischiopodite, slender 0=0 exopodite. H 9 Forceps (chelate). Fighting, seizing. No exopodite. In the clawthe last joint bites against 10 Walking Legs (chelate). Walking. a prolongation of thesecond last. II Genital opening infemale. 12 .» Without chelas. 3 jj Genital op
Outlines of zoology . exopodite. 6 ist Maxillipedes ? Thin protopodite, small en- (foot-jaws). dopodite, large exopodite. 7 2nd Maxillipedes. ? Two - jointed protopodite,five - jointed endopodite,long exopodite. 8 3rd Maxillipedes. Masticatory, Two - jointed protopodite,large five-jointed endopo- dite with strong teeth on t^ its ischiopodite, slender 0=0 exopodite. H 9 Forceps (chelate). Fighting, seizing. No exopodite. In the clawthe last joint bites against 10 Walking Legs (chelate). Walking. a prolongation of thesecond last. II Genital opening infemale. 12 .» Without chelas. 3 jj Genital opening in ,, male. 14 Modified swim- r Serve in the male Protopodite and endopodite merets in male; { as canals for the form a canal; no exopodite. in female, rudi- l seminal fluid. mentary. c 15 Modified swim- ., All the three parts. i* mcTcts in male, normal in female. s- 16 Swimmerets. /-Move slightly like ,, <1 17 ,, j oars, and carry ,j 18 1 the eggs in theV female. M 19 Great paddles. Important in Fig. 142.—Appendages of Norway lobster. Exopodite : En., endopodite ; protopodite dark throughout; E^., Antennule—E.^ position of ear; 2. antenna—K.^, opening of kidney; 3. mand-ible—P., palp ; 4. first maxilla; 5. second maxilla—B., baler ; 6, first maxilH-pede; y. second maxilhpede ; 8. third maxillipede—the basal joint of the proto-podite is called coxopodite, the next basipodite ; the five joints of the endopoditeare called—jschiopodite(z.) ; meropodite(wz.) ; carpopodite_(c.); propodite (??.);dactyloi:;odite (d.) ; g. forceps—(7) coxopodite ; (6) basipodite, the joints of theendopodite are numbered ; 10-13. walking legs ; 14. modified male appendage;15-18- small swimmerets ; 19. large paddles. 286 PHYLUM ARTHROPODA. It is likely that some of the crowded mouth-parts, the firstmaxillae, are almost functionless. The hard toothed knob which formsthe greater part of the mandible is obviously well adapted to its crush-ing work
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Keywords: ., bookcentury1900, bookdecade1910, bookidcu3192, booksubjectzoology
