XXI 



Page 

 53. E. tuhifex. A. Upper jaw-plates of au adult specimen. B. Lower 



jaw-plates of the same 306 



64. Feet of an adult specimen of E. tuhifex 307 



65. Thirtietli foot of a young specimen of E. tuhifex, to show 



maximum development of the secretory pad 309 



56. E. antennata, in the act of swimming 313 



57. Sections of body of E. antennata 315 



58. Upper jaw-plates of E. antennata, a large specimen 315 



59. Two acicular setae of E. antennata in their natural relative 



positions 316 



60. Three feet of E. antennata (a small specimen of var. viridis), 



showing the proportions of the gills in anterior, middle, and 

 posterior parts of the body 317 



61. Sections of body of E. indica 319 



62. Heads of three specimens of E. indica 320 



63. Upper jaws of a full-grown specimen of E. indica 321 



64. Feet of E. indica, showing maximum of development of gill . . 322 



65. Upper and lower jaw-plates of Nicidion gracilis 328 



6 J. Anterior and liinder feet of Nicidion yracilis 329 



67. Part of arterial system of Zamenis mucosus 335 



68. Ovarian and oviducal arteries of one side of the body in Trojndo- 



notus fasciaius 348 



69. Spermatic and neighbouring arteries of TrojudoJwtus fa-iciatus . . 351 



70. Zamenis Jia(jelliformis, origin of right aorta and other arteries, to 



illustrate mode of enclosure within lymphatic sheath 352 



71. One of the hepatic arteries of Ophiophagus 356 



72. Eight testis of Ophiopharjus and its blood-supply 357 



73. Left testis of 0^;/«" phagus and blood-supply 358 



74. Epigastric vein of Ophiophagus 359 



75. Testis and blood-supply of Naia tripvdians 361 



76. Anterior testis and blood-supply of Python spilotes 364 



77. Posterior testis and bl{)od-.supi)ly of Python spilotes 365 



78. (Esophageal and hepatic arteries of Lachesis yramincus 367 



79. Hyslrix leucura, left maxillary 417 



80. Aniidorcas euchore, $ , right maxillary 420 



81. Antidorcas euchure ( S '•), "g^it maxillary 420 



82. " So rex pun ill us, var. griscus," anterior portion of left mandibular 



ramus ... ^-'-» 



83. Eight anterior limb of : A. Mixosauruscornalianus ; 'B. Ichthyo- 



saurus communis ; C. Ichthyosaurus extremus 424 



84. Side view of skull (without lower jaw) of Domesticated Horse 



from India, showing rudimentary face-pit 427 



85. Skull of Quagga in the British Museum, showing vestige of 



depression for the face-gland 428 



86. Quagga in the Amsterdam Museum 430 



87. C'i'rco/j/^/iecws «6'toe;-j: front (A) and side (B) views of head .. 434 



88. Anterior abdominal and median epigastric vein of Iguana 



tuberculata 438 



