INDEX. 479 



Muscular system : Zeechy 55 ; Earthwormy 78 ; Mussel^ 86 ; Amphioxus, 183, 199 ; see 

 also Muscle 



MusouU papiUai'es : RaHbit, 351 ; Pigeon^ 447 



Mushroom-shaped gland ; Cockroach^ 176 



Mussel, 81-108 ; shell, 62 ; external characters, 86 ; gills, 90 ; circulatory system, 93 ; 

 excretory system, 97 ; nervous system, 99 ; digestive system, 101 ; repro- 

 ductive system, 102 ; transverse sections, 103 



Myophan striation ; Paramecium, 5 ; Opalinay 7 ; Vorticella, 11 



Myotome : Amphioxus, 181, 183, 199 



Nacreous layer : Mussel-shell, 86 ; Snail-shell, 113 



Nasal bone : RabMt, 300 ; Fowl, 410 



Nasal cartilage : Dog-fish, 223 



Nasal chamber : Rabbit, 375 



Naso-turbinal : Rabbit, 300 



Neck : Cockroach, 163 ; Rabbit, 360-370 ; Pigeon, 425 



Nematocyst : Hydra, 19, 20, 24, 26 ; discharge of, 20-21 



Nephridium : Leech, 47-50, 57 ; Earthworm, 67-70 



Nephrostome : Earthworm, 67, 69 



Nerve, antennary : Coclcroach, 174 



auditory : Snail, 126 ; Crayfish, 159 ; see also 8th cranial iieive 



branchial : Dog-fi^h, 274. 



buccal : Snail, 126 ; Dog-fish, 372 



cardiac : Dog-fish, 274 ; Rabbit, 367 



cranial : Dog-fish, 267-274 ; see also Nerve roots 



1st cranial (olfactory) : Dog-fish, 268 



2nd cranial (optic) : Dogfish, 268 



3rd cranial (oculo-motor) : Dog-fish, 268 



4th cranial (pathetic) Dog-fish, 269 



5th cranial ^trigeminal) : Dog-fish, 269, 270 



6th cranial (abducent) : Dog-fish, 271 



7th cranial .(facial) : Dog-fish, 269, 271 



8th cranial (auditory) : Dog-fish, 269, 273, 281 



9th cranial (glosso-pharyngeal) : Dog-fish, 273 



10th cranial (pneumo-gastric or vagus) : Dog-fish, 273 ; Rahlit, 3G6-36S 



11th cranial (spinal accessory) : Rabbit, 363 



12th cranial (hypoglossal) : Rabbit, 365 



depressor : Rabbit, 367 



desceudens noni, see Ramus descetKleus 



gastric : Dog-fish, 274 



great auricular : Rabbit, 368 



intermediary : Leech, 58 



laryngeal, anterior : Rabbit, 366 



laryngeal, posterior : Rabbit, 367 



mandibular : Dog-fish, 270 



maxillary : Dog-fish, 271 



of lateral line : Dog-fish, 273, 274 



of neck : Rabbit, 263-269 



ophthalmic : Dog-fish, 270, 271, 282 



optic : Crayfish, 158; Cockroach, 174 '; see also 2ud crauia.1 nerve 



palatine : Dog-fish, 272 



phrenic : Rabbit, 338, 368 



post spiracular : Dog-fish, 272 



pre-spiracalar : Dog-fish, 273 



pulmonary : Rabbit, .367 



recurrent laryngeal : Rabbit, 367 



spinal : Dog-fish, 278 



splanchnic : Rabbit, 372 



sympathetic : Rabbit, 368, 370-372 



visceral : Crayfish, 156, 157 ; Cockroach, 175 ; Dog-fish, 274 

 Nerve-cell : Hydra, 20, 24; Leech, 58 ; Earthworm, 80 ; Snail, 127 

 Nerve-chain, see Nervous system 



Nerve-collar : Uver-fiuke, 33 ; Leech, 52 ; Earthworm, 76 ; Snail, 126 

 Nerve-commissure : Mussel, 99 



Nerve-connective : Mussel, 100 ; Crayfish, 155-156 ; Cockroach, 174 

 Nerve-cord, see Nervous system 

 Nerve-ganglion, buccal : Snail, 126 



cerebral : Mussel, 99 ; Snail, 126 ; Cockroach, 174 

 cervical : Rabbit, 368, 371 



