576 



INDEX 



Tympanic membrane and cavity, 105, 



111, 130, 295 



Tympanum of syrinx, 371 

 Typhlosole, 335 



Ulna, 160 

 Ulnare, 161 

 Umbilical cord, 440 



vesicle, 438 



Uncinate processes, 69 

 Unguligrade, 171 

 Uniserial fin, 156 

 Urachus, 440, 462 

 Ureter, 445 

 Urethra, 484, 492 

 Urinary bladder, 336, 458, 461, 462 



of Fishes, 455 



organs, 441-463 

 Urinogenital organs, 441-485 

 Uropygium, 25 

 Urostyle, 53, 54 

 Uterus, 463, 477 



masculinus, 484, 485 

 Utriculus, 290 

 Uvula, 310 



V 



Vagina, 477 

 Vaginal cajcum, 480 

 Valve of Vieussens, 203 

 Valvula cerebelli, 211, 214, 215 

 Valvulaj conniventes, 346 

 Variability, 1 

 Vascular system, 393-432 

 Vas deferens, 450 



epididymitis, 483 

 Vas efferentia, 445, 454 

 Veins, 393-399, 419, 431 

 Velum, 352 



palati, 310 



trans versum, 200 

 Vent, 308 



Ventral fissure, 198 

 Ventricles of brain, 195, 203 

 Vermis, 229 

 Vertebra?, 47 

 Vertebral column, 12, 45 



theory of skull, 74 



Vertebrates, classification of, 13, 14 



gradual development in time of, 16 

 Vertebrarterial canal, 62, 68, 69 



foramen, 59 

 Vesicula prostatica, 485 



seminalis, 457, 465, 469, 472, 483 

 Vestibulum oris, 312 

 Vestigial limbs, 162, 164 

 Vexillum, 27 

 Vibrissre, 30, 257 

 Villi, of intestine, 346 



of placenta, 11, 439 

 Viscera, 12 

 Visceral arches, 80, 100 



tube, 11 



Vitelline membrane, 3 

 Vitello-intestiiial duct, 9 

 Vitellus, 3 



Vitreous body or humour, 275 

 Vocal cords, 364, 367 



sacs of Anura, 367 

 Vomero-nasal organ, 271 

 Vulva, 483 



W 



Weberian ossicles, 297 

 WolfHan body, 445 

 duct, 450 



X 



Xiphisteriuini, 71 

 Xiphoid process, 73 



Vellovv bodies, 476 

 Yolk, 3, 5 

 Yolk-sac, 9 



Z 



Zygantra, 58 

 Zygapophyses, 51 

 Zygokrotaphic type of skull, 113 

 Zygomatic arch or bar, 100, 106, 113, 



132 

 Zygosphenes, 58 



H. CLAY AND SONS, LTD., BREAD ST. HILL, B.C., AND BUNGAY, SUFFOLK. 



