612 



GO MP A EA TI VE A NA TO MY 



Megistocrinus, 307 

 Melampas, 109 

 Melanidce, 6 

 Meleagrina, 17 



,, margariii/cra, 17 



Melihe, 13 

 Mellita, 293 



,, tesUidinutii, 293 

 Mdncrinidoe, 307 

 Melocrinus, 307 



„ typus, 307 



AMmiites, 289 



,, multipora, apical system, 340 

 McJonitUhr, 289 

 Mi'uihraua limitans, 173 

 McDiia ixiilricosa, apical system, 323 

 Meret.rix [Cytherea), 18 

 Meridosterual test, 349 

 Mesites, 313 ; ambulacrum, section, 386 

 Mesohlastus, 315 

 Mesddc.^tniafidcv, IS 

 Mcsoplax, 64 

 Mesnrchium, 230 

 M,i,ihl„shis, 315 

 Mdorriiu'^, 313 



„ angulatus, tegmen calycis, 365 



„ Murrayi, 311 



Metaplax, 64 

 Metapodium, 106 

 Metrodira, 298 

 Micrsestlietes, 166 

 Micraster, 293 



,, coranguinum, apical system, 324 



Miller icrinus, 310 

 Milneria, 49 

 Mimaster, 296 

 Mithrodia, 299 

 Mitra, iOl 

 Mitridce, 6 

 Modiola, 15 

 Modiolaria, 15 

 Moira, 503 



Mollusc, hypothetical primitive, 26 

 Molpadia, 287 



,, chilensis, 488 

 Molpadiidoe, 287 

 Monocyclic base (Crin.), 328 

 Alonacyclica, 303 

 Monogonopora, 8 

 Monomyaria, 14, 124 ; shell, 64 

 MiDinpInirida', 18 



Mn,u'ti,riirili(t, 5 ; diagram, 31 ; gills, 90 

 Mnitfiinita. 93 

 Miirlln-i,! (Moll.), 124 

 iMiirH,ri<n-m, 124 

 AIuelleridcB, 124 

 Mulleria (Echin.), 285 

 Murex, 101 



,, tnincnlus, alimentary canal, 189 

 Mnricida', 6 

 Mutela, 17 

 Alutelmw, 51 

 Mya, 19 



Myacea, 18 

 Myadai, 64 

 Myiidce, 19 

 Myoc/mma, 51 

 Myopsidce, 24 

 Myriotrochus, 288 



Rinkii 246 

 My(ilida\ 15 

 MytUns edidis, 15 

 Myxaster, 298 



NACJiLLA, 108 



Naei'eous layer of shell, 57 



iVarini, 108 



.Xinirido, 107 



Niitindia, 10 



Nalica Jusepliina, 107 ; swelling of foot, 

 119 



Sollridii, i; 



y<iiilil<,idai, 22 



Xauliliifi, 22 ; eye, 169 ; diagram, 37 ; 

 gonads, 230 ; nervous system, 

 145, 146 ; pallial complex, 

 82 ; tentacles, 117 

 ,, Po'inpiliiis, 22 



N((ii(Riis group, 68 



Nertria, 296 



Nccdliani's (spermatophoral) pouch, 238 



A'n.rriiioidnt, 303 



Kaiincida, 3 



Neomeniidw, 3 



Neomeniina, 3 



N(phrop')ieusta, 78 



Nt'ptunea contraria, 160 



iXrri/idir, r, 

 Niritliiu:, 5 

 NerUopsida', 5 

 Notfeum, 10 

 Notarch'us, 10 



„ j/?«H(;<«<M.s, nervous system, 141 

 X„1„s/,!d,>, 10 

 N,>l<>l,,;n,,-I,„a, 90 

 N<ilnl,n(n.-lur;da\ 11 

 Nuchal plate, 126 

 ,\iirlcirhU(stlda;, 315 

 Nncula, 1^ ; ctenidia, 85 



„ nucleus, 14 

 Nueulidw, 14 

 Nudibranchia, 12 



OCTOPODA, 24 

 Octupodidce, 24 

 Octopus, 24 ; anatomy, 147 ; nervous 



system, 148 

 „ vidgaris, 25; gonad, female, 231 ; 



male, 239 

 Ocular plates (Echinoid.), 321 ; (Ast.) 354 

 Odontoblasts, 183 

 Odontophore, 336 

 Oigiipsidce, 24 

 Oligopyg^is, 293 

 Oliva, 30 



