INDEX 



617 



Brachiopoda, 264. 



labial appentlageg in Gwynia, 271. 

 TerebrateUidaB, 2y2. 

 the genus Diccelosia, 399. 

 Kingena, 245, 304, 306, 308. 

 Kiugsley, J. S., aiEultiea of trilobites, 

 110. 

 composition of trilobite head, 188. 

 extinction of dinosaurian reptiles, 



96. 

 trilobites as a sub-class of the Crus- 

 tacea, 114. 

 Koninck, L. de, spines on Michelinia 



favosa, 39. 

 Koninckella, 245. 

 Koninckina, 245, 270, 283. 

 Koenigia, 154. 



Korshelt, law of radial symmetry, 236. 

 Kovalevski, A. O., arm development in 

 Cistella and Thecidea, 274. 

 early embryology of brachiopods, 

 246. 



sedentary larvae of Thecidium, 

 256. 

 protegulum in Cistella, 231. 

 tentacles in Cistella, 27.5. 

 tentacular multiplication in Cistella 



and Lacazella, 407. 

 ventraJ yalve in Thecidium, 259. 

 Kraussina, 231, 238, 245, 294, 295, 308. 

 deltidial plates in, 395. 



and thickened septum of, 305. 

 incomplete secondary loop in, 301. 

 paragerontic tendency in, 271. 

 plectolophous stage in, 281. 

 zugolophous stage in, 281. 

 Kutorgina, 232, 233, 268. 

 cingulata, 233, 252. 

 deltidium in, 253. 

 Labradorica, 233. 

 rudimentary teeth in, Schuchert, 



2.52. 

 sculptilis, 233. 

 Whitfiddi, 233. 



Lacaze-Duthiers, H., early embryology 

 of brachiopods, 246. 



sedentary larvae of Thecidium, 

 256. 



observations on Brachiopoda, 259. 

 Lacazella, 231, 245, 246, 247, 255. 



absence of setse in, 249. 



Barretti, schizolophian stage in, 

 279. 



blaatula cavity in, 248. 



difference in valves in, 234. 



hinge in, 236. 



lophophore in, 279. 



mediterranea, lophophore in, 280. 

 schizolophian stage in, 279. 



mesembryo in, 248. 



metembryo in, 248. 



relation to other brachiopods, 255. 



tentacular multiplication in, Kova- 

 levski, 407. 

 Lakhmina, 243. 

 Lambert family, account of, Haeckel, 



92. 

 lamellibranchs, Waldron, 313. 

 Lang, A., cephalic region in trilobites, 

 165. 



classification of trilobites, 114. 



form of original Crustacean, 189. 



nauplian limbs, 1 92. 

 Laqueus, 231, 245, 301, 306, 308. 



californica, 299. 



connecting bands in, 299. 



miihlfeldtiform stage in, 301. 

 Larnacalpes lentellipsis , spines in, 48. 

 larvse, trilobite, variations in, 179. 

 larval stages of insects, spines in, 19. 

 law of morphogenesis, application of, 17. 



of multiplication of effects, sum- 

 mary of operation of, Spencer, 6. 



of radial symmetry, Haeckel, Jack- 

 son, Korshelt, Heider, 236. 



of use and disuse, 28. 

 leaves, reduction of, 73. 

 Leidy, Joseph, freshwater Rhizopoda, 



43. 

 Leiolichas, 150. 



glabella in, 150. 



pygidial margin in, 151. 

 leiolophus stage, 277. 

 Leiorhynchus, 246. 



Leiothyrina cubensis, loop in, Dall, 396. 

 Lepas fascicularis, defensive spines in 



nauplius larva of, Balfour, 56. 

 Lepidums, plate-like telson in, 84. 



trunk segments and appendages of, 

 191. 



