INDEX. 



391 



357 ; liver of, 344, 347 ; mantle of, 

 334, 362, 378 ; mantle artery of, 340, 

 343; mantle cartilage of, 338; mau- 

 tle chamber of, 334, 337 ; mantle cir- 

 culation of, 376 ; mantle develop- 

 ment of, 367 ; micropyle of, 364 ; 

 moutli of, 348, 355; mouth develop- 

 ment of, 368; muscles of, 338,355, 

 361; neck of, 338; nervous system 

 of, 3 18,353; nidamcntal gland of, 338, 

 352 ; odontophore of, 356 ; oesophagus, 

 346, 347, 348, 357 ; oesophagus devel- 

 opment of, 369 ; olfactory organ of, 

 333 ; otocyst of, 372 ; ovary of, 348, 

 353; oviduct of, 353; pen of, 335, 

 363, 368 ; pericardium of, 343 ; pros- 

 tate gland of, 350, 352; pupil of, 358 ; 

 rachis of, 357 ; radula of, 357 ; rec- 

 tum of, 338, 346, 371; regions of 

 body of, !3 I ; renal organ of, 340, 341 ; 

 reproductive organs of, male, 349; 

 reproductive organs of, female, 352 ; 

 retina of, 359; salivary gland of, 347, 

 segmentation of, 365 ; shell of, 335, 

 363, 368; shell gland of, 368; siphon 

 of, 336, 338,339, 361, 370; siphon de- 

 velopment of, 3G8 ; siphon valve of, 

 336,377; siphonal cartilage of, 338; 

 spermatophore of, 352 ; spermato- 

 phore receptacle of, 350, 351 ; sperma- 

 tozoa of, 352 ; spleen of, 345, 346 ; 

 stomach of, 316; systemic heart of, 

 345; test is of, 348,349; vas deferens 

 of, 350 ; vas effercns of, 351 ; vena 

 cava anterior of, 341, 314, 362 ; vena 

 cava posterior of, 310,343; vesicula 

 seminalcs of, 350; visceral sac of, 

 341 ; vitreous humor, 35! >. 

 Starfish, ix. , x., xi. ; ab-actinal snrlMcv of, 

 57 ; ab-oral tentacle of, G3, 75 ; m'tinal 

 surface of, 57 ; ambulacra of, 63, 69, 

 76; ambulacra! area of, 60, 61; am- 

 bulacral furrow of, 57; ambulacra! 

 pore of, 57; ambulacra! system of, 

 68, 69, 76; ambulacra! vesicle of, 69; 

 ampullae of, 69 ; anterior ray of, 57 ; 

 bivium of, 58; blood-vessels of, 71, 



77 ; digestive organs of, 63 ; heart of, 

 71 ; hepatic coeca of, 63, 64, 75 ; inter- 

 ambulacral area of, 61 ; inter-radius 

 of, 57, 65 ; inter-radial partition of, 

 62 ; intestine of, 65 ; madreporic 

 body of, 57, 69 ; microscopic struct- 

 ure of, xi.; mouth of, 57; nervous 

 system of, 70, 71 ; oesophagus of, 68; 

 ossicle of, 58, 59, 61, 75, 76; pedicel- 

 lariue of, 58, 73 ; pericardium of, 71 ; 

 perihamial vessel of, 71, 72, 76; peri- 

 soma of, 57 ; peristome of, 63, 68 ; 

 polian vesicle of, 69 ; pyloric sac of, 

 64; racemose vesicle of, 70; repro- 

 ductive organs of, 68 ; respiratory 

 tree of, 65 ; stomach of, 63, 65, 67, 

 75 ; stomach muscles of, 68 ; stone 

 canal of, 71 ; swimming larva of, 

 130; tiivium of, 58; vertebral ridge 

 of, 60 ; water system of, 68, 69, 76. 



Sternal artery, 195 ; plastron, 174, 183, 

 171. 



Sternum, 173, 184. 



Stipes, 210. 



Stomach of Anodonta, 284, 296; of 

 Crab, 190, 200; of Zoea, 209; of 

 Starfish, 63, 65, 67, 68 ; of Hydro 

 Medusa, 41 ; of Leech, 163, 164 ; of 

 Squid, 346. 



Stomato-gastric ganglia, 167. 



Stone canal, 71, 93. 



Sub-genital plate, 251. 



Submentum, 245. 



Sub-oesophageal ganglia, 264. 



Sub-umbrella, 39. 



Supporting layer, 33, 45, 48. 



Supra-cesophageal ganglia, 263. 



Surface collecting, 37. 



Swimmeret, 186, 188. 



Syncitium, 29. 



Systemic heart of Squid, 345. 



Tarsus, 242. 



Teeth, 84, 85, 97. 



Tegmina, 238. 



Telsou, 186, 207, 214, 217. 



Tentacles ab-oral, 63, 75 ; of Hydro 

 Medusa, 40, 45- 



