XII LIST OF ILLUSTRATIONS. 



Facing 

 Page. 



63. Model restoration of Stegosaurus stenops 390 



64. Structural characteristics of the family Mengeidae 502 



65. Structural characteristics of the family Mengeidae 502 



66. Structural characteristics of the family Mengenillidae 502 



67. Structure of the first larva of the family Stichotrematidae 502 



68. Structural characteristics of the family Callipharixenidae 502 



69. Comparison of the structure of the family Myrmecolacidae and the coleopt- 



erous family Rhipiphoridae 502 



70. Structural characteristics of the family Stylopidae 502 



71. Structural characteristics of the family Stylopidae 502 



72. Structural characteristics of the family Xenidae 502 



73. Wings of stylopized leaf-hoppers 502 



74. Structural characteristics of the family Halictophagidae 502 



75. Structural characteristics of the family Halictophagidae 502 



76. Structural characteristics of the family Halictophagidae 502 



77. Structural characteristics of the family Halictophagidae 502 



78. Structural characteristics of the families Halictophagidae, Diozoceridae, 



and Elenchidae 502 



79-80. Micro-structure of the Plainview, Texas, meteorite 506 



81. Humeri of Iguana and Cyclura 512 



82. Femur and tibio-tarsus of Neseotrochis debooyi dqq 



83. New land shells from California 524 



84-85. New north Pacific calcareous sponges 556 



86. The Fayette County, Texas, meteorite 562 



87. Polished slice of the Cedar, Fayette County, Texas, meteoric stone 562 



88. New marine shells from Panama , 576 



89-92. New species of isopods 604 



93. A new West Indian fossil land shell 606 



94-95. Fossil Tertiary plants from Oklahoma 636 



96. Astrocynodus herrerai, new species 640 



TEXT FIGURES. 



Page. 



Ischnochiton albrechti 4 



Axes of deformation in varieties of Nuculites 42 



Map of Colorado showing localities where Entomostraca have been collected... 60 



Map of Tolland region 61 



Mean precipitation by months 62 



Isotherm map of the world, with the isotherms of Corona and Frances drawn in 64 



Mean temperature by months 64 



Mean monthly minimum temperatures 65 



Mean monthly maximum temperatures 65 



Curves showing the approximate distribution of surface temperature throughout 



the year in three sorts of lakes 69 



Drawing of net used in making collections 71 



Graphic representation of altitudinal ranges of all species of Entomostraca known 



to occur in Colorado 73 



Sarcophaga subtuberosa. a. c, anterior claspers; a. p., accessory plate;/., for- 

 ceps; g. s.\ first genital segment; g. s.^, second genital segment; p. c, posterior 



claspers 89 



Sarcophaga crinita 93 



Sarcophaga orientalis 95 



Sarcophaga knabi 96 



