Zoologischer Anzeiger 



herausgegeben 



von Prof. J. Yictor CarUS in Leipzig. 



Zugleich 



Organ der Deutschen Zoologischen Gesellschaft. 



Verlag von Wilhelm Engelmann in Leipzig. 



XY. Jahrg. 11 .Juli 1892. No. 395. 



Inhalt: I. Wissenschaftl. M^ttlieilungeu. 1. Dendy, The Discovery of tlie true Nature of the 

 so-called family Teichonidae. 2. Voigt, Das Wassergefäßsystem von Mesostomnm truncattim 0. ScIl. 

 3. Walter, Über einige Monostomen aus dem Darme einer Schildkröte. 4. Cholodkonsky, Zur Kennt- 

 nis der Speicheldrüsen der Vögel. II. Mittheil, aus Museeu, Instituten etc. 1. Dewitz, On Some 

 Methods of Arranging Biological Specimens. 2. Zoological Society of London. 3. Deutsche Zoo- 

 logische Gesellschaft. III. Personal-Notizen. Necrolog. Litteratur. p. 157—164. 



I. Wissenschaftliche Mittheilungen. 



1. The Discovery of the true Nature of the so-called family Teichonidae. 



By Arthur Dendy, D.Sc. F.L.S.. 



eingeg. 27. April 1892. 



In a somewhat elaborate memoir entitled «On the Anatomy of 

 Granfia lahyrinthica , Carter, and the so-called family Teichonidae«, 

 published in the Quarterly Journal of Microscopical Science for Ja- 

 nuary 1891, I gave the first detailed account of the anatomy of Car- 

 ter's Teichonella [Grantia] lahyrinthica, and shewed (as indeed Mr. 

 Car ter had already stated) that the sponge in question was an vmdoub- 

 ted Sycon. I examined also Carter's Teichonella prolifera and, after 

 carefully sifting the evidence, arrived at the following conclusions 

 concerning the supposed family Teichonidae : — »As a matter of fact 

 the family ought to be abandoned altogether, and the three species 

 which have been at various times placed in it distributed as follows : 



Teichonella prolifera Leuconidae. 



Eilhardia Schulzei Leuconidae. 



Grantia lahyrinthica Syconidae. 



It would not have been necessary to deal with this question so care- 

 fully had not Poléjaeff's emended family Teichonidae met with 

 such general and unquestioning acceptance. Thus Vosmaer adopts 

 it in his most important work , and Lenden fe Id gives it a place in 

 his system and in the inevitable genealogical tree. Hîeckel also ac- 

 cepts the family in his latest work on sponges.« 



15 



