518 



Bulletin American Museum of Natural History. [Vol. XXVII, 



Guilielmofloweria, 383. 

 Gymnuia, 262-3; molar, 238. 

 Gyrencephala Owen, 89. 



Haeckel's phylogenetic trees, 88. 



Hairs, origin of, 145; Monotremes, 157. 



Hairy Quadrupeds (Ray), 21. 



Hapalops, humerus figured, 437. 



Haploconus, 359. 



Hay, 89. 



Hegetotheriidse, 384. 



Hemieentetes, analogies in skull to 

 Zeuglodon, 419. 



Hemithlseus, 402. 



Henricosbornia, 376, 383. 



Heptodon, manus and carpus, 451; do. 

 figured, 452. 



Herpestoidea, 100. 



Herrmann, 73. 



Hicanodonta Ameghino, 465. 



Homalodotheria Scott, 370, 466; genetic 

 relations, 374—5; definitions, 369, 383, 

 384. 



Homodynamy between manus and pes, 

 456. 



Homology and analogy: Aristotle, 10; 

 Herrmann, 73; Osborn, 88. 



Humerus, of primitive mammals, fig- 

 ured, 437; of Monotremes, 153, 155; 

 of Perissodactyls , 391, of Solenodon, 

 249; in fossorial forms, 258. 



Huxley, work of 1872, 92; application 

 of evolutionary principles to classifi- 

 cation, 94; general position in mam- 

 malog\% 103. 



Hylobatidte, 101. 



Hyopsodus, 360. 



Hypocone, origin, 189, 190. 



Hypoconid, origin, 186. 



Hypotheria Huxley, 94, 95. 



Hyraces Wagler, 346, 466. 



Hyracoidea Huxley, 93; carpus, 448, 

 genetic relations, 361. 



Hyrax, placed in "les Pachydermes" 

 by Cuvier, 64, 6(). 



Hystricomorpha Brandt, 326, 330. 



IcTOPS, 260; molar figured, 238. 

 Ilium, evolution of, 435. 



Illiger, 67. 



Incus, morphology, 130. 



Ineducabilia Bonaparte, 84. 



Insectivora, 231, 464; recognized as 

 primitive Placentals, 92, 96; primi- 

 tive characters, 254, 283, 287-292; 

 "marsupial characters," 286; origin, 

 287; carpus, 444; astragalus, 455; 

 in relation to Ca?neutheria, 460. 



Insectivora Primitiva Osborn, 171. 



Integument, characters of, used in 

 classification, 44. 



Interparietals, 425; of Monotremes, 149, 

 155; of Placentals, 242. 



Interatheriidse, 384. 



Intercentra, 431; of Cynodonts, 118; 

 of Insectivores, 118, 265. 



Jacobson's Organ: Monotremata, 156; 

 Macroscelides, 281. 



Jaw, lower: lateral movement of con- 

 dylar portion, 119, 186; j. of Thero- 

 cephalia, 114; Cynodonts, 119, 135; 

 j. of Mesozoic Therapsids and Mam- 

 mals figured, 135; Multitul)erculates, 

 169; Tritylodon, 166; Trituberculata, 

 178. 



Johnston, 23. 



Jugal (Malar) of Cynodonts 118, 120, 

 122; of Monotremes, 149, 156; of 

 Insectivores, 254-5. 



Karoomy.s, lower jaw figured, 137. 

 Klein, 24. 



Kowalevsky, 88, 89. 

 Kurtodon, 194. 



Lacepede, 60. 



Lachrymal, 424; of Monotremes, 149, 



156. 

 Lactation, origin of, 146. 

 Lagomorpha Brandt, 330. 

 Lamarck, 63, 73, 103. 

 Lambdotherium, 386-387. 

 Larynx of Monotremes, 157 

 Lemures, 465. 

 Leontinia, 384. 

 Leptictidip, 260. 

 Leviticus, classification given in, 7. 



