INDEX. 509 



Muscle, pyramidalis : Pigeon, 460 



quadratus: Pigeon, 460 



retractor penis : Snail, 133 



sterno-mastoid : Rabbit, 372 

 Muscle-process : Hydra, 28, 29 

 Muscular impression : Mussel-shell, 91 

 Muscular system : Leech, 62 ; Earthworm, 86 ; Muscel, 94 ; Amphioxus, 191, 0/ se* 



a/ o Muscle 

 Musculi papillares : Rabbit, 359 ; Pigeon, 452 

 Mushroom-shaped gland : Cockroach, 184 



MUSSEL, 89-116 ; shell, 90 ; external characters, 94 ; gills, 98 ; circulatory system, 101 ; 

 excretory system, 105 ; nervous system, 107 ; digestive system, 109; repro- 

 ductive system, 110 ; transverse sections, 111 

 Myophan striation : Paramecium, 5 ; Opalina, 7 ; Vorticella, 11 

 Myotome: Amphyozus, 189, 191, 207 



Nacreous layer : Mussel-shell, 93 ; Snail-shell, 121 



Nasal bone : Rabbit, 310 ; Fowl, 415 



Nasal cartilage Dog-fish, 231 



Nasal chamber : Rabbit, 381 



Naso-turbinal : Rabbit, 310 



Neck : Cockroach, 171 ; Rabbit, 370-378 ; Pigeon, 430 



Nematocyst : Hydra, 23, 24, 28, 30 ; discharge of, 24, 25 ; Obelia, 31 



Nephridium : Leech, 54, 57, 74 ; Earthworm, 75, 78 



Nephrostome : Ear hworm, 75, 77 



Nerve, antennary : Cockroach, 182 



auditory : Snail, 134 ; Crayfish, 167 ; see also Cranial nerve 



branchial : Bog- fish, 282 



buccal : Snail, 134 ; Dog-fish, 280 



cardiac : Dog-fish, 282 ; Rabbit, 376 



cranial : Dog-fish, 275-282 ; see also Nerve roots 



1st cranial (olfactory) : Dog-fish, 275 



2nd cranial (optic) : Dog-fish, 276 



3rd cranial (oculo-motor) : Dog-fish, 276 



4th cranial (pathetic) : Dog-fish, 277 



5th cranial (trigeminal): Dog-fish, 277, 278 



6th cranial (abducent) : Dog-fish, 279 



7th cranial (facial) : Dog-fish, 277, 279 



8th cranial (auditory) : Dog-fish, 277, 281, 289 



9th cranial (glossopharyngeal) : Dog-fish, 281 



10th cranial (pneumogastric or vagus) : Dog-fish, 281 ; Rabbit 373-375 



11th cranial (spinal accessory) : Rabbit, 372 



12th cranial (hypoglossal) : Rabbit, 372 



depressor: Rabbit, 375 



descendens noni, see Ramus descendens 



gastric: Dog-fish, 282 



intermediary : Leech, 61 



laryngeal, anterior : Rabbit, 376 



laryngeal, posterior : Rabbit, 377 



mandibular: Dog-fish, 278 



maxillary : Dog-fish, 279 



of lateral line: Dog-fish, 281, 282 



of neck : Rabbit, 271-277 



ophtha mic : Dog-fish, 278, 279, 290 



optic : Crayfish, 166 ; Cockroach, 182 ; see also 2nd cranial nerve 



palatine : Dog-fish, 280 



phrenic: Rabbit, 377 



post-spiracular ; Dog-fish, 280 



pre-spiracular : Dog-fish, 281 



pulmonary : Rabbit, 376 



recurrent laryngeal : Rabbit, 377 



spinal : Dog-fish, 286 ; Rabbit, 377 



sympathetic: Rabbit, 376, 377 



visceral : Crayfish, 164, 165 ; Cockroach, 183 ; Dog-fish, 282 

 Nerve-cell : Hydra, 27, 31 ; Leech, 88 ; Earthworm, 135 ; Snail, 135 

 Nerve-chain, see Nervous system 



Nerve-collar : Liver-fluke, 40 ; Leech, 59 ; Earthworm, 86 ; Snail, 134 

 Nerve-commissure : Mussel, 127 

 Nerve-connective: Mussel, 108 ; Crayfish, 163, 164 ; Cockroach, 182 



M M 



