298 REFEREXCES. 



The resemblance of the buccal cavity and tentacles (cirri) of 

 Ammocoetes to the corresponding parts in Amphioxus is so close 

 that there can hardly be any doubt the two are homologous. The 

 anterior end of the nerve-tube of Amphioxus corresponds to the 

 la?nina iei-iiiinalis of the craniate Vertebrates. 



31 HuxLEV, T. H. On the Classification of the Animal Kingdom. 

 Journal of the Linnsan Society (London), XII. 1876. pp. 199- 

 226. (Read 3d Dec, 1874.) 



Section on '^ epicwl,'" p. 216 et seq. Atrial cavity of Amphi- 

 oxus and Ascidians is an epiccel like the opercular cavity of the 

 Amphibian tadpole. 



32 KoLLiKER, Albert. Ueber das Geruchsorgati von Amphioxus. 

 Miiller's Archiv fur Anat. Physiol., etc. 1843. pp. 32-35. Taf. 

 II. Fig. 5. 



Discovery of olfactory pit and first description of the spermatozoa 

 of Amphioxus. 



33 KOPPEN, Max. Beitrage zur vergleichenden Anaiomie des 

 Centralnervensystems der Wirbelthiere. Zur Anatomic des 

 Eidechsengehirns . Morphologische Arbeiten (Schwalbe), I. 1892. 

 pp. 496-515. Taf. 22-24. 



Contains discovery of giant-fibres in caudal portion of spinal 

 cord of Lacerta viridis. 



34 Kohl, K. Einige Bemerkungen iiber Sinnesorganc des Amphi- 

 oxus lanceolatus. Zool. Anz. 1S90. pp. 182-1S5. 



States that sometimes there is a shallow olfactory groove on the 

 right side as well as that in the left. Such grooves are often due 

 to artificial crumpling, and the obser\-ation requires confirmation. 



35 Krukenberg, C. Fr. W. Zur Kenntnis des cliemischen Banes 

 von Amphioxus lanceolatus und der Ccphalopodcn. Zool. Anz. 

 1881. pp. 64-66. See also Hoppe-Seyler's reply, pp. 185-187. 

 Compare also Cuenot (supra). 



36 Kupffer, Carl von. Studien zur verglcichendc Entwick- 

 lungsgeschichte des Kopfcs der Kraniotcn. I. Die Entivicklung des 

 Kopfes von .Acipenser sturio an Medianschnittcn iintersuclit. 95 

 pp. 8°. 9 Tafeln. Munchen und Leipzig, 1893. 



Contains also a chapter on brain of Amphioxus, with figures. 



37 Langerhans, Paul. Zur Anatomic des Amphioxus lanceolatus. 

 Archiv fiir mikroskopische Anatomie. XII. 1S76. pp. 290-348. 

 Taf. XII. -XV. 



Standard work on the histology of Amphioxus. 



38 Lankester, E. Ray. On Some N'civ Points in the Structure of 

 Amphioxus and their Bearing on the MorpholoQ' of I'ertcbrata. 

 Quarterly Jour. Micro. Sc. XV. N. S. 1S75. pp. 257-267. 



