Index 



4C5 



MOLLUSC A, molus'ka (L. molluscus, 



soft) 259, 432 



Unsegmented triploblastic animals 



with characteristic muscular foot. 



Examples, clams, snails, squids, 



octopi. 



MONAXONIDA, monakson'ida (G. 



■monos, alone + axon, axis) 421 



An order of Porifera with mon- 

 axon but no tetraxon spicules. 

 MONIST, mo'nist (G. monos, alone), 



definition of 176 



MONOCOTYLEDONS, monokotile'donz 

 (G. monos, alone + Jcotyledon, a cup- 

 shaped hollow) 228 



Plants having one embryo lobe. 

 MONOCYST, mon'osist (G. monos, sin- 

 gle + kystos, a bag), definition of. .154 

 M ON ODEL PHI A, monodel'fia ( G. 

 monos, single + delphis, womb) .... 



428, 434 



MONODINE (G. monodia, a solo, la- 

 ment ) 144 



MONOECIOUS, mone'shtis (G. monos, 



single + oikos, house), definition of. 218 

 MONOGENEA, monoje'nia (G. monos, 



single -f- genos, kind ) 422 



An order of Trematodes which de- 

 velop direct from the egg. 

 MONOGENETIC, mon'ojenet'ik (G. 



monos + genesis, descent) 289 



Definition of 404 



Direct asexual reproduction. 

 MONOPHYLETIC, mon'ofilet'ik (G. 



monos + phyle, tribe), definition of. 404 

 M N S A CCHARIDE, monosak'arid 

 (G. monos, alone + L. saccharum, 



sugar) 188 



MONOSIGA, definition of 152 



MONOTREMATA, mon'otrem'ata (G. 



monos, one + trema, opening) 428 



MORAL SENSE, definition of 184 



MORPHOLOGY, morfol'Sji (G. morphe, 



form + logos, discourse) 31 



Science of form and structure of 

 animals and plants. 

 MORULA, mor'ula (L. morum, a mul- 

 berry), definition of 106 



Definition of, in protozoans 133 



MOSAIC IMAGE, definition of 322 



MOSQUITOES AND MALARIA 135 



MOSS-ANIMALS, definition of 310 



MOSSES 216 



MOSS PLANTS, definition of 204 



MOTILE, mo'til (L. motus, moved) . . .226 

 MOULT, molt (L. mutare, to change). 



Definition of 331 



MUCOSA, muko'sa (L. mucus, mucus) 49 

 A membrane secreting mucus. 



MUCOUS GLANDS 46 



MUELLER, JOHANNES.381, 389, 390, 417 



MUSCA DOMESTICA . . 370 



MUSCI, mus'ki (L. muscus, moss)... 216 



MUSCLE, miis'l (L. musculus, muscle) 



Circular Jf9 



Longitudinal \d 



MUTATION THEORY, muta'shun (L. 



mutare, to change), definition of 



165, 405 



MUTTKOWSKI 139 



MYCELIUM, mlse'lium (G. mykes, 



fungus ) , definition of 209 



MYCETES, mlse'tez (G. myketes, a 



bellower ) , definition of 191 



MYCETOMA, mlseto'ma (G. mykes, 



fungus + oma) , definition of 215 



MYCOSIS, miko'sis (G. mykes, fungus 



-4- osis) , definition of 215 



MYELIN, mi'elin (G. myelos, mar- 

 row ) , definition of 115 



MYLOHYOID, my'lohi'oid (G. myle, 



mill + upsilon, the letter y) 80 



MYOSITIS, miosi'tis (G. mys, a muscle 



-f itis ) , definition of 303 



MYR10PODA, miriop'oda (G. myrioi, 



10,000 + pons, foot) 424, 432, 433 



MYSTACOCETI, mis'tacose'ti (G. 



mystos, mustache + ketos, whale) . .429 

 MYTILUS, mit'ilus (G. mytllos, a sea- 

 mussel ) 156 



MYXINOIDEA, n ik'sinoid'ia (G. 



myxa, slime + eidos, resemblance) .427 

 MYXOPHYCEAE, miksofi'see (G. 



myxa, mucus + phykos, sea weed), 



definition of 205 



MYXOSPORIDIA, mik'sosporid'ia (G. 



myxa, mucus + spora, seed) ...... .421 



An order of Neosporidia. 



Definition of 154 



NAGELI 405 



NARES, na'res (L. nostril) 62 



KAIS .284 



A sub-class of Oligochaeta. 



NAPLIUS 828 



XARGOMEDUSAE, nar'komedu'se (G. 



narke, numbness + L. medusa) . . . .421 

 An order of Hydrazoa. 



NASAL, na'zal (L. nasus, nose) 73 



NEANDERTHAL MAN 400, 401 



NEBULIFERA, nebulif'era (L. nebula, 



cloud + ferr-e, bear ) 151 



NECATOR AMERICANUS 303 



NECTAR, nek'tar (G. nektar, nectar) .366 

 Sweet substance secreted by special 



glands, the nectaries, in plants. 

 NECTONEMA AGILE (G. nektos, 



swimming) 309 



NECTOPHORES, nek'tofors (G. nektos, 



swimming + phercin, to carry) 256 



N EM AT HE LMINTHES, nem'athel- 



min'thez (G. nema, thread + thel- 



mins, a worm) 266, 286, 430 



NEMATOCYST, nem'atosist (G. nctna, 



thread + kystis, bladder) 348 



A stinging cell. 



