INDEX 



611 



/ in/if imata larvi/ormia, 303, 363 

 Infrabasals, 318 



Ink-bag (Ceph.), 177, 196 ; morphology, 

 197 



ix, 17 



, shell, 63 

 Interambul.icra, 339 

 Interambulaeral radii, 316 

 Interdistichals, 363 

 Interuodes, 374 

 Interpalmars, 363 

 Interradii, 316 

 Intersecuudibrachs, 363 

 Intertertibrachs, 363 



Illl-l'illllS, 304 



Irpa, 418 

 frregulares, 315 



Isaster, 293 

 Isomyaria, 124 



JANUS, 13 ; nervous system, 141 

 Jouannetia, 19 



,, Cum'uKjii, 19 

 Juglandocrinus, 332 



KEBER'S organ (red-brown organ), 215 

 Kelhja, 17 

 Kentrodoris, 13 



Kleinia luzonica, apical system, 342 



Kolya, 285 



Kollicker's canals (Ceph.), 168 



LABIAL palps (Gastr.), 104 ; (Lain.), 105 



Labidiaster, 299 



Labidodemas, 491 



Labrum (Echinoid.), 348 



Lacuna, 108 



Lcetmoyone, 285 



Laganidce, 291 



Laganum, 291 



depressum, apical system, 323 

 LanifUiiridce, 6 

 LameUibranchiata, 14-21 ; byssus, 114 ; 



diagrams, 50 ; heart, 199 ; shell, 59, 62, 



156 



Lancet plates (Blast.), 380 

 Lanistes (see Ampullaria}, 161 

 Larviformm, 303 

 Lascea, 17 



Lateral organs (Gastr.), 165 

 Lecythocrinus, 304 

 Leda, 14 

 Lepetidce, 5 

 Lepidocentrus, 289 

 Lepidomenia, 13 



hystri.i:, 132 



Leptoconchus, 183 

 Lepton, 17 



Leptoptychaster kergudenensis, 503 

 Leskiidce, 295 

 Leuconia, 109 

 Ligament (Lam.), 61 

 Li/iui, 105 



i;, 8 

 helidna, anatomy, 189 



,, J.i-sl/ft-iii, 11 



,, retroversa, 160 

 Limacinida:, 11 ; diagram, 80 



/,i/ll<l/Hllltiit/H', 12 



Limn.'-, 8 ; vascular system, 204 

 /. ini/i/ii 1 , :1 3 

 Limncea, S 



ii/ii/xm'cii/a, 100 



x/i/ : /,iti//x, genital organs, 235 

 Lininccidce, 8 

 Linckia, 298 



,, multifora, 244 

 Linckiidce, 298 

 IJnthia, 293 

 Lipocephala, 101, 177 

 x, 15 



., 108 



Littorinidce, n 



Li twites, 68 

 Lobiger, 12 

 Loligo, 24 ', gonad, male, 231 ; nervous 



system, 148 

 ,, riityci'is, 23 

 Loligopsis, 24 ; shell, section, 69 

 Lomanotidce, 13 

 Loven, law of, 341-344 

 Loveuia, J'J-1 



Lucina Pennsylvania, shell, 63 

 Lucinacea, 50 

 Li/cinidce, 17 

 Luidia, 296 

 Luuula, 341 

 Lutraria, 51 

 Lutrariidce, 19 

 Lyonsia, Norweyica, 51 

 Lyonsiidce, 21 



M Al'TRA, 18 



Madrid 01, IS 

 Macula, 168 



,, acustica, 168 

 Madreporite, 321, 416-423 

 Magiliis, 183 

 Malletia, 49 

 Mullens, 17 

 Mantle, 26 ; cavity, 26 

 Miiri/arita Groenlandica, 4 

 Margaritana ( Unio) Mar gar it if c fan, 17 

 Marginaster, 297 

 Marginellidce, 6 

 Mitriacriiuifi, 307 

 Marionia, 13 

 Marseniada:, 225 

 Marsupia, 347 



ccelatus, tegmen calycis, 



369 

 Ma mi ip ites, 304 



ornatus, apical system, 329 



M<ii-ii-xi<t, 65 

 Megallcesthetes, 166 



