466 Thilo Krumbach: Hydroidea und Acalephae 



May, Albert, J. A Contribution to the Morphology and De- 

 velopment of Corymorpha pendula Ag. — The American Naturalist 

 Vol. 37 (No. 441, September) 1903, p. 579—599. 



Methods. Associated forms. Corymorpha pendula: — Ex- 

 ternal Morphology. Histology of Parts, a) Hydrocaulis, b) Papilli- 

 form processes, c) Hydranth, d) Tentacles. Origin and Development 

 of the Medusa. Summary. Z, T. 



May, W. Referat. R. von Lendenfeld (Agassiz). 



Mayer, Alfred GrOldsborough (1). The Variation of medusa. 

 With two plates. — The Museum of the Brooklyn Institute of Arts 

 and Sciences. Science Bulletin. Vol. I (No. 1 April) 1901. 1—27. 

 New York. 



Review of Previous Researches Treating of Variation in Me- 

 dusae. Original Research: In the present paper we will compare 

 the variations of Pseudoclytia pentata with those of several other 

 allied species of Medusae. Variations of the Radial Canals. Radi- 

 ally Symmetrical and Non-Radially Symmetrical Variations of P. 

 pentata. Fertility of Normal and Abnormal Medusae of P. pentata. 

 Monstrous Medusae of P. p. Bilateral Symmetry in P. p. The 

 Variations of E. folleata. Conclusions. E. 



— (2). The Tortugas as a biological Station. — Science (N. 

 S.) Vol. 17 p. 246. 



— (3). The Bahamas vs. Tortugas as a Station for research 

 in Marine Zoology. — Science (New Series) Vol. 18 p. 369— 371; 

 New York 1903. 



Kurzer Bericht auf Grund einer Reise im Auftrage des Museum 

 of the Brooklyn Institute of Arts and Sciences vom 4. Juni bis zum 

 27. Juli. Vergleich der Brahamas mit den Tortugas in reference 

 to their comparative advantages as stations for the establishment 

 of a laboratory for research in marine zoology. p. 370 Among me- 

 dusae only a few species allied to Gonionemus appear to thrive 

 in this water of the Bahamas banks. . . . The Bahama region is 

 richer in corals, poorer in fishes and invertebrates, and far poorer 

 in pelagic life than that of the Tortugas. 



Mc Intosh, W. C. The coloration of marine animals. — 

 Annais and Magazine of Natural History (7) Vol. 7 p. 221—240. 



Coelenterata p. 224— 225. 



Meddelanden af Societas pro Fauna et Flora Fennica. Tju- 

 gundenionde Hcäftet 1902—1903. Helsingfors 1904. 



Mötet den 4 Oktober 1902: pag. 6 „Docent E. Nordenskiöld 

 framlade exemplar af den för Finlands fauna nya coelenteraten 

 Hydra viridis, funnen sistlidne sommar i Lojo af fil. mag. Alex. 

 Luther." In der „Deutschen Uebersicht" p. 254 ist die Mittheilung 

 wiederholt: „Coelenterata. Hydra viridis. Regio aboens., Lojo: 

 A.Luther. S. 6." 



Meisenheimer, J. Referate. Thilenius. Max Weber. Loh- 

 mann 1903. 



