REFERENCES. 299 



39 LANKESTER, E. RAY. Contributions to the Knowledge of Amphi- 

 oxus lanceolatus, Yarrell. Ib., Vol. XXIX. 1889. pp. 365-408. 

 Five plates. 



40 LWOFF, BASILIUS. Uber den Zusammenhang von Markrohr 

 und Chorda beim Amphioxus und iihnliche Verhdltnisse bei 

 Anneliden. Zeitschrift fur wiss. Zoologie. Bd. 65. 1893. pp. 

 299-308. Taf. XVII. 



Describes those supporting fibres of the spinal cord of Amphi- 

 oxus which descend in successive paired groups to the notochordal 

 sheath and penetrate the latter in order to insert themselves on 

 the inner surface of the sheath. The openings in the notochordal 

 sheath of Amphioxus, through which the ventral supporting fibres 

 pass, were first observed by WILHELM MULLER in 1871. (W. 

 MULLER, Ueber den Bau der Chorda dorsalis. Jenaische Zeit- 

 schrift, VI. 1871. pp. 327-354.) See also PLATT (infra) and 

 LWOFF (88). Latter contains complete bibliography of literature 

 relating to structure of notochord. 



41 MAYER, PAUL. Uber die Entwicklung des Her sens und der 

 grossen Gefdssstamme bei den Selachiern. Mitth. Zool. Stat. 

 Neapel. VII. 1887. pp. 338-370. Taf. 11-12. 



42 MEYER, EDUARD. Studien liber den Korperbau der Anneliden. 

 Mitth. Zool. Stat. Neapel. VII. 1887. pp. 592-741. Taf. 22-27. 



42 bis. MOREAU, CAMILLE. Recherches sur la Structure de la Corde 



dorsale de VAmphioxus. Bull. Acad. Belg. Tome 39. No. 3. 

 1875. 22 pp. One plate. 



43 MULLER, WILHELM. Ueber die Stammesentiyicklwng des 

 Sehorgans der IVirbeltliiere. 76 pp. Five plates. 4. Leipzig, 

 1874. 



44 MULLER, WILHELM. Ueber das Urogenitalsystem des Amphi- 

 oxus und der Cydostomen. Jenaische Zeitschr. flir Naturwissen- 

 schaft, Bd. II. (neu'e Folge). 1875. Sep. Abdruck. pp. 1-38. 

 Two plates. 



This is the important work in which the pronephros and 

 mesonephros were for the first time clearly distinguished from one 

 another. The author was, however, in error regarding Johannes 

 Mullers renal papillae of Amphioxus. 



45 MULLER, JOHANNES. Uber den Bau und die Lebenserscheinun- 

 gen des Branchiostoma lubricum Costa, Amphioxus lanceolatus, 



Yarrell. Berlin, 1844. 4. 40 pp. Five plates. 

 Read at the konigl. Akademie, 1841. 



46 NANSEN, FRIDTJOF. The Structure and Combination of the His- 

 tological Elements of the Central Nervous System. Bergens 

 Museums Aarsberetning for 1886. Bergen, 1887. 



