216 EXTRACTS AND ABSTRACTS FROM FOREIGN JOURNALS. 



III. ANCYRIUM. W. Ankerfuss. 



Char. Gen. Bodones enterodeli, pede setaceo mobili (Bodo grandis) 

 eique affines. (6 ?) species. 



IV. STEPHANOMA. W. Kranzkugel. 



Char. Gen. Pandorina, animalculorum serie circular! unica, cor- 

 pusculis singulis ad Gonii modum dividuis. Una species. Eximiee 

 formse genus. 



V. DICELLA. W. Doppelbart. 



Char. Gen. Bursaria setis duabus immobilibus appendiculata. 

 Una species. 



II. ROTATORIA. 



I. MALACOSTOMUM. W. Weichmund. 



Char. Gen. Notommatae edentulse. Tres species. 



II. BROCHOCERCA. W. Schlingenfuss. 



Char. Gen. Monocercae pede setaceo basi fisso. Sed hae formae 

 a Monocercis satis gravibus notis vix differunt. Quinque species. 



III. RHYNCHOPOGON. W. Riisselbart. 



Char. Gen. Diglenae rostro bilobo insignes. Duae species. 



Ehrenberg' s further results of his Researches into the Berlin Subterra- 

 neous Living Microscopic Organisms. At the sitting of the Berlin Aca- 

 demy, Nov. llth, 1841, the author made the following communica- 

 tion : One of the most striking circumstances with regard to the 

 Berlin deposit of Infusoria, part of which are still in the living state, 

 is the fact, that these forms which are thus met with, apparently in a 

 condition to germinate, being filled with green granules, are for 

 the most part not to be found living on the surface in the neighbour- 

 hood of Berlin, although they have been sought for with the greatest 

 assiduity. 



These species were especially Gallionella decussata and G. granulata, 

 which are very readily distinguished from all other Gallionella by their 

 regular, shagreen-like surface, and which occur in vast numbers. Both 

 these species were previously only known to occur as dead shells in the 

 probably tertiary Bergmehl deposit near Kliecken, and in a similar for- 

 mation in Greece, as also in a deposit lying under peat in North Ame- 

 rica. With these were many angular silicious spiculae, similar to those 

 which have hitherto been observed only in marine sponges. 



Latterly, from two quarters, some facts illustrative of these enigma- 

 tical relations have come to light. 



M. Ehrenberg hoped to have been able, in a journey he made in the 

 summer, to the East-sea (Ost-see) in Mecklenburg, to have cleared up 

 this phenomenon, by the finding of similar forms in the sea- water at that 

 locality, or in the brackish water of the marshes ; but nothing similar 



