GENERAL INDEX 529 



Metasoma, 52, 387, 411 



Metastoma, 239, 246, 272, 289, 342, 458 



Metazoa, 444, 459, 471, 472 



Meynert's bundle, 48, 77 



Mollusca, dominance of, 23 



Mouth, old, or paheostoina, 14, 317, 322, 440, 458 



,, vertebrate, 317 

 Muco-cartilage, v. Cartilage 

 Muscles, antagonistic, 447 



,, branchial, 170 



,, connection of, with central nervous system, 464 



,, eye, and their nerves, 263 



,, prosomatic, 243, 247 



,, phylogeny of origin of skeletal. 47S 



,, rudimentary, in Amrnoccetes, 289 



,, somatic trunk, origin of, 406 



., striated, 20, 155 



,, tubular, of Amrnoccetes, 309 



„ unstriped, 20, 447, 491 



,, visceral and parietal, 155, 172 



,, veno-pericardial of Limulus and Scorpion, 177, 297, 309 

 Muscle-spindles, 267 

 Mygalidse, stomach, 109 



„ segmentation, 249, 306 

 Myomeres, 262, 337, 414, 479 

 Myotomes, 332, 337, 338, 391, 407, 408 

 Mysis, eyes, 100 



,, ductless glands, 422 

 Myxine, 220, 392, 402, 419 



Nebalia, 144, 422 

 Nemertina, 475 

 Nephridia, 395, 421, 429 

 Nephrocoele, 430 

 Nephrotome, 393 

 Nerves, abducens, 155, 263, 266 

 auditory, 356, 376 

 ,, autonomic, 3 



facial, 155, 156, 186, 188, 192, 311, 356, 378 

 ,, ,, ramus branchialis profundus, 311 



,, to flabellum, in Limulus, 361, 375 

 ,, glossopharyngeal, 155, 156, 186, 356 

 ,, hypoglossal, 156 

 ,, inhibitory, 447 



inedullation of, 20, 267, 467, 477 

 occulomotor, 155, 234, 263, 274 

 ,, olfactory, 229 

 optic, 101, 104 

 „ ,, of pineal eye, 79 



,, origin of ganglia of cranial and spinal, 281 

 ,, to pecten of Scorpion, 375, 376 

 ,, preganglionic, 2 



2 M 



