INDEX 



615 



Vacuoles— 



contractile, of Amoeba, m, 

 116. 

 of Balantidium, < I §8. 

 of Paramecium, • 132. 

 of Polytoma, 122. 

 of Vorticella, 140. 

 Valves, heart, of crayfish, 255. 



of dogfish, 359. 



of frog, 53. 



of pigeon, 415. 



of rabbit, 449. 



spiral, of dogfish, 353. 

 Vane (or vexillum) of feather, 1400. 

 Variation, 511, 526. 



acquired, 526. 



germinal, ,526. 

 Vasa deferentia, of crayfish, 264. 



of dogfish, 357. 



of earthworm, 227. 



of pigeon, 414. 



of rabbit, 446. 



See also Wolffian duct. 

 Vasa efferentia, of frog, 65. 



of dogfish, 357. 

 Vascular system, 18. 



See also Arteries, Veins. 

 Vein — 



anterior abdominal, 59, 417. 



azygos, 451. 



brachial, 415. 



caudal, 364, 416. 



coccygeomesenteric, 416. 



dorsolumbar, 59. 



epigastric, 417. 



external iliac, 451. 



external jugular, 59, 451. 



femoral, 59, 416. 



genital, 59, 451. 



hepatic, 59, 451. 



hepatic portal. See Portal. 



hypogastric, 416, 451. 



iliolumbar, 451. 



innominate, of frog, 59. 



of man and sheep, 476, 588. 



internal iliac, 416, 451. 



internal jugular, 59, 451. 



lingual, 59. 



mandibular, 59. 



musculocutaneous, 59. 



ovarian. See Genital. 



Vein — 



pectoral, 416. 



pelvic, 59. 



portal, 60, 416, 451. 



postcaval (or inferior vena 

 cava), 59, ,383, 416, 1451. 



precaval (or superior vena 

 cava), 59, 362,:4i5,45l. 



pulmonary, ,59. 



renal, 59, 451. 



renal portal, 59, .391, 416. 



sciatic, 59, 416. 



spermatic. See Genital. 



subclavian, ,59. 



subscapular, 59. 



vesical, 60. 

 Veins, 56. 



of dogfish, 362, 363. 



of frog, 59. 



of pigeon, 415 



of rabbit, 451. 



of reptiles, 391. 



of vertebrates, 451. 

 Velum, of Amphioxus, 3328. 



of medusa, 176. 

 Vena cava, of swan mussel, 322. 



of Vertebrata. See Vein, post- 

 caval, precaval. 

 Venous system. See Veins. 

 Vermiform appendix, 444, 476. 

 Vertebrae, 26. 



of dogfish, 345. 



of frog, 26, 27, 29. 



of pigeon, 404. 



of rabbit, 422, 424. 



of snakes, 392. 



See also Backbone. 

 Vertebral canal, 26, 27. 

 Vertebral column. See Backbone. 

 Vertebral foramen, 27. 

 Vertebrarterial canal, 422. 

 Vertebrata, 339, 342, 517. 

 Vesicle, cerebral, of Amphioxus, 



338- 

 Vesiculae seminales, of earthworm, 

 227. 

 of frog, 65. 

 Vestibule, of Ciliata. See Peri- 

 stome, 

 of frog's auditory labyrinth, 81. 

 of rabbit, 448. 



