175 



lieh die Cystenbildung der Theilung, Knospung und Sporenbildung 

 voraufgeht. Hier regeneriert sich nur ein einzelliges Wesen, bei Aeolo- 

 soma und Regenwurm der vielzellige Organismus. 



Zur geschlechtlichen Fortpflanzung steht die Encystierung von 

 Aeolosoma kaum in näheren Beziehungen; bekanntlich dauert die 

 Geschlechtsreife dieser Gattung eine sehr kurze Zeit und die 

 mit Geschlechtsorganen versehenen Würmer sind ziemlich selten, 

 vrährend die Mehrzahl sich zu gleicher Zeit ungeschlechtlich weiter 

 fortpflanzt, um schließlich den Encystierungsproceß einzugehen. Es 

 ist auch sehr wahrscheinlich, daß die Geschlechtsthiere nach der Ei- 

 ablage absterben, während die auf ungeschlechtlichem Wege sich fort- 

 pflanzenden Individuen sich in den Cysten zur weiteren Lebensthätig- 

 keit regenerieren. 



II. Mittlieilimgen aus Museen, Instituten etc. 



1. Linnean Society of New South Wales. 



January 27tli, 1892. — 1) Contributions to a more exact knowledge 

 of the Geographical Distribution of Australian Batrachia. No. 3. By J. J. 

 Fletcher. In this short paper collections are recorded from Warroo and 

 Pimpama, South Queensland, and from Lucknow and Yass, N.S.W. ; and 

 some general observations both as to characters and distribution based on 

 the examination of the several hundred specimens recorded in the short 

 papers of which this is the third , are noted. — 2) A Monograph of the 

 Temnocephaleae. Part I. By Professor W. A. Has well. Since the author 

 published an account of Temnocephala (Quart. Journ. Micro. Sci. 1888) there 

 have appeared several important contributions to the subject by Max Weber, 

 Monticelli and Braun. The receipt from Dr. von Ihering of a new species 

 which lives in the branchial sac of Ampullaria in certain streams in Brazil, 

 led the author to re-examine the entire group. This re-examination revea- 

 led the presence of cilia on the surface in the adult condition of certain of 

 the species, and has led to a more complete comprehension of the excretory 

 system with its »Wimperflammentr and excretory cells, in addition to throw- 

 ing light on other points. The present paper is an account of all that is now 

 known of the morphology of the family, with a description of three new 

 species. The second part will contain an account of the embryology with a 

 discussion of the relationships of this aberrant group. — Dr. Cox exhibited 

 a specimen of Purpura textilosa, a common marine shell on the South Austra- 

 lian coast, brought to him from Brewarrina on the Darling ; and he said that 

 at first he was extremely puzzled to account for the means of transport to 

 such a distance from the coast. The true explanation of the matter probably 

 was to be found in the fact that as , instead of carrying lime so great a di- 

 stance — Brewarrina being fully 1000 miles by river from the sea — it 

 was usual to take up shells from the coast by the river steamers and burn 

 them where required , the specimen exhibited had formed part of such an 

 importation. — Mr. Palmer exhibited a snake [Hoplocephalus nigrescens, 

 Gthr.) and a lizard [Tiliqua gigas, Sch.) caught yesterday on the Blue Moun- 

 tains, as they came to drink at a little runnel of water very shortly after it 



