828 Eugen Burchardt, 



vertebris instructa et vertebris carentia jampridem moratus, 



Amphioxi speciem ambiguam primus explicavit." Brit. 



med. Journ., Vol. I, p. 1252. 

 Kuss, G., De la theorie vertebrale. Journ. de I'anat. et de 



la pysiol., annee 35, p. 477 (488). 

 *Perrier, Edm., Traite de Zoologie. Paris, fasc. V. 



(Phanerochordes: Acraniens: Leptocardes. Amph. das 



Zwischenglied zwischen Anneliden u. Vertebraten; nicht 



degeneriert.) 

 Prenant, A., Sur le protoplasma superieur. Journ. de I'anat. 



et de la physiol., annee 35, p. 72. (Nach van dee Steicht, 



1896.) 

 Rabl, Ueber Homologie uud Eigenart. Verhandl. Deutsch. 

 •pathol. Ges., Mtinchen, Sept. 21. Ref. Centralbl. f. allgem. 



Path. u. path. Anat., Bd. X, S. 831. 

 Reh, L., Ueber Asymmetrie und Symmetrie im Tierreiche. 



Biolog. Centralbl., Bd. XIX, S. 625. 

 ScHULTZE, 0., Ueber das erste Auftreten der bilateralen Sym- 

 metrie im Verlauf der Entwicklung. Arch. f. mikrosk. 



Anat., Bd. LV, S. 171 (197 erwahnt Wilson, 1892). 

 Sherrington, C. S., The Spinal Animal Marshall Hall Lecture 



before the Royal Medical and Chirurgical Society. May. 



Brit. med. Journ., Vol. I, p. 1276. („if Amphioxus were 



divided into three parts, each portion swam the right 



side up, and if inverted corrected its position.") 

 SwAEN, A. et Brachet, A., Etude sur les premieres phases 



du developpement des organes derives du mesoblaste chez 



les poissons teleosteens. Arch, de Biologic, T. XVI, p. 173 



(290, 301). 

 Wheeler, W. M., The development of the urogenital organs 



of the lamprey. Zoolog. Jahrb., Bd. XIII p. 1 (24, 51, 



70, 74) 



a) WiLLEY, A., Remarks on some Recent Work on the Proto- 

 chorda, with a Condensed Account of some Fresh Ob- 

 servations on the Enteropneusta. Quart. Journ. of Microsc. 

 Sci., Vol. XLI, p. 223. 



b) * — Greneral Account of a Zoological Expedition to the 

 South Seas during the years 1894 — 1897. Proceed. Zool. 

 Soc. of London, p. 8. 



(Eine Asymmetron-Art von der Deboyne Lagune, Loui- 

 siaden, Brit. Neu-Guinea, verschieden von den beiden in 

 der Torres-StraCe gefundenen.) 



c) * — Zoological Results based on Material from New Bri- 

 tain, New Guinea, Loyalty Islands and elsewhere collected 

 during the years 1895, 1896 and 1897. Cambridge, 

 Part III. 



*YuNG, E., Recherches sur la digestion des Poissons (Histologie 

 et physiologic de I'intestin). Arch, de zool. experim. et 

 gener., T. VII, p. 121. 



